Jochen A. G. Jaeger, PhD
- Associate Professor, Geography, Planning and Environment
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Biography
In addition to his position at the Department of Geography, Planning and Environment, he is an affiliated member of the Department of Biology and a member of the Loyola Sustainability Research Centre (LSRC).
Research areas: Dr. Jaeger is working in the fields of landscape ecology, road ecology, the quantification and assessment of landscape structure and landscape change, land consumption through urban sprawl, ecological modelling, environmental indicators, environmental impact assessment, and novel concepts of problem-oriented transdisciplinary research.
Link to our Landscape Ecology and Environmental Impact Assessment Lab.
Education
PhD (Swiss Federal Institute of Technology ETH, Zurich)Professional affiliations
International Association of Landscape Ecology (IALE)International Association for Impact Assessment (IAIA)
Quebec Center for Biodiversity Science (QCBS)
Infra Eco Network Europe (IENE)
Loyola Sustainability Research Centre (LSRC)
Swiss Academic Society for Environmental Research and Ecology
(Schweizerische Akademische Gesellschaft für Umweltforschung und Ökologie, SAGUF)
[board member 10/2004 - 11/2014]
Ecological Society of Germany, Austria and Switzerland (Gesellschaft für Ökologie, GfÖ)
Member of Editorial Boards of Peer-Reviewed Journals
“Landscape Ecology” (7/2007-8/2012)"Nature Conservation" (since 7/2017)
“Current Landscape Ecology Reports” (since 9/2015)
“GAIA: Ecological Perspectives for Science and Society” (since 6/2004)
“Landscape Online” (since 10/2013)
Teaching activities
HENV 615: Research Group Seminar
HENV 635: Spatial Analysis
ENVS 662: Data Collection and Analysis for EA
HENV 605: Research Concepts and Design
GEOG 361: Research Design and Qualitative Methods
GEOG 371: Landscape Ecology
See course descriptions in the undergraduate or graduate calendar.
Research
Lab statement on climate change – A global emergency!
The science about climate change is clear: Earth’s climate is rapidly changing as a result of human activities; and this needs to be recognized for what it is – a global emergency! Effects including rising sea levels, droughts, floods, fires, shifting plant and animal ranges, and more frequent and intense extreme weather events are a reality humanity must address today. Climate change threatens to make many parts of our planet inhospitable for life as we know it, and it is exacerbating the destructive effects of biodiversity loss and inequality worldwide. The members of the Landscape Ecology Lab are sincerely concerned and recognize that action on this matter is urgently needed. Scientists agree that global temperature increases must be held below 1.5 degrees Celsius to avoid catastrophic climate change. Institutional action is critical to help meet this goal, in addition to individual action, and we want to do our part. We therefore pledge to dedicate a considerable amount of our research to areas relating to climate change and biodiversity loss, and to take concrete action to reduce our impact on the environment. This is taking shape in numerous ways, including involvement in the departmental Climate Emergency Committee (watch the intro video about the CEC here), reducing GHG emissions, flying less, limiting our consumption of meat, and a reduction in waste. We strongly encourage other labs and individuals to take a similar pledge, and exemplify the change they wish to see in the world.Openings and opportunities for students
I am now looking for new MSc and PhD students to do research about road ecology, urban sprawl, landscape fragmentation, and/or landscape quality in Quebec or other parts of Canada for monitoring landscape change, starting in summer 2025 (for projects with a fieldwork component) or fall 2025. If you are interested, please send me an email and let me know about your research interests and your background (and include your CV).There are many opportunities in our lab including field work, GIS (e.g., landscape metrics), computer simulation modelling (or combinations of them), or surveys and qualitative interviews. You are welcome to bring your own research ideas. Generally, research projects in our lab are about landscape ecology, road ecology, the quantification and assessment of landscape structure and landscape change, urban sprawl, ecological modelling, environmental indicators, environmental impact assessment, as well as inter- or trans-disciplinary combinations of them - for example, research projects that include quantitative, qualitative, and/or mixed-methods approaches.
Various thesis topics are available, for example: (1) "How does the use of crossing structures along roads by humans influence their use by wildlife (mammals)?", (2) "How long do wildlife fences need to be to avoid a fence-end effect?", (3) "Is it better to install a Few Long Or Many Short (FLOMS) fences to reduce wildlife mortality on roads?", (4) "How to set limits to urban sprawl?", (5) "What are the similarities and differences between the various definitions of 'urban sprawl' proposed in the literature?", and (6) "How effective are urban growth management strategies at mitigating urban sprawl?"
I am also looking for 2 new Honours students to work on several research questions, for example on the question of how the use of existing crossing structures along roads by humans influence affects their use by wildlife (mammals), and on a project about procedures to introduce limits to control environmental degradation. More information HERE. Various other topics are also available. These Honours theses will start in September 2025.
News
Exciting news: PhD student Jonathan Cole has published his third paper of his PhD thesis in the journal Regional Environmental Change. It investigates the role of land conversion and lack of protection on suitable wolf habitat amount and connectivity in the Adirondack-to-Laurentians (A2L) transboundary wildlife linkage. It is available online athttps://doi.org/10.1007/s10113-024-02288-3.
PhD student Jonathan Wilansky just published his first paper in the journal Ecological Modelling. His research studies the effectiveness of wildlife fencing along road with particular attention given to the fence-end effect. You can see it here: https://doi.org/10.1016/j.ecolmodel.2024.110784
The new video about the Climate Emergency Committee has been completed and you can now watch it here: https://vimeo.com/711162795
Great news: Benjamin Brunen's paper from his MSc thesis has been accepted for publication in the Journal of Environmental Management! It is available online at https://doi.org/10.1016/j.jenvman.2020.110423. His research aimed at identifying attributes that are relevant for drainage culverts to serve as efficient road crossing structures for mammals.
Ariel's paper about how to reduce wildlife mortality on roads is now published in the journal Conservation Biology (here: https://conbio.onlinelibrary.wiley.com/doi/10.1111/cobi.13502). She developed a method based on mortality reduction graphs and proposes an Adaptive Fence Implementation Plan to reduce roadkill. Her paper discusses the influence of scales, thresholds, and the Few-Long-Or-Many-Short-fences trade-off (FLOMS). It is featured in The Wildlife Society (https://wildlife.org/new-fencing-framework-can-help-managers-reduce-roadkill/) and The Conversation (here). Very well done!
Ariel's paper from her Honours thesis has been published in the journal Landscape Ecology in October 2019 and is available online. She compared two landscape metrics for measuring landscape connectivity and found that metrics that do not consider within-patch connectivity can result in misleading conclusions. Within-patch connectivity always needs to be taken into account (as for example, effective mesh size does)! Congratulations, Ariel!
Naghmeh's second paper from her MSc thesis is now published in the journal Landscape and Urban Planning and is available here. She examined how suitable entropy may be for measuring urban sprawl. The results clearly demonstrate that entropy is not suitable as a measure of urban sprawl. Very nicely done, Naghmeh!
Our new book about measuring and limiting urban sprawl has now come out (Schwick et al. 2018)! We had a very nice book launch at the Swiss Federal Research Institute WSL in Birmensdorf (Switzerland) on August 30th. You can order a copy of the book here: https://www.haupt.ch/Verlag/Buecher/Natur/Umwelt-Oekologie/Zersiedelung-messen-und-begrenzen.html
Four students of our lab presented their ongoing research at the 2nd Annual Concordia Sustainability Across Disciplines Conference on March 8-9, 2018, including Ariel Spanowicz, Jon Cole, Benjamin Brunen, and Mehrdokht Pourali. Today, the newspaper "The Concordian" (Concordia University's weekly, independent student newspaper) is reporting about their presentations here (vol. 35, issue 22): http://theconcordian.com/2018/03/exploring-perspectives-sustainability/
October 23-25, 2017 was the date of the conference "Road Ecology & Climate Change Adaptation: From Research to Action". Location: Quebec City (QC), Hotel Ambassadeur. It was a great success with more than 200 participants! It was in French and English (simultaneous translation). Please find more information on the website in English: http://roadecologyconference.org/index.php/en/
and in French: http://www.colloqueecologieroutiere.org/index.php/fr/. The website includes PDFs of the posters presented at the conference. Also available are a leaflet in English and one in French. You can now find the special issue of Le Naturaliste canadien (vol. 143(1), 2019) about this conference with most of the presentations written up as papers in it here.
Our meta-analysis about the effectiveness of road mitigation measures to reduce traffic mortality of wildlife is now published in PLoS ONE: Trina Rytwinski, Kylie Soanes, …, Edgar van der Grift (2016): "How effective is road mitigation at reducing road-kill? A meta-analysis". It is the result of our last three meetings of the "Road Castle Group" (and work outside of these meetings). You can find a lay summary in the Concordia News here: "New Research: How to Reduce Roadkill". We are now working on a meta-analysis about mitigation measures to reduce the barrier effect of roads.
Aurora's paper from her PhD thesis about large-scale wildlife responses to man-made infrastructure has been published in PNAS Early Edition on July 11, 2016 - you can find it here: http://www.pnas.org/content/early/2016/07/05/1522488113.full Sarah DeWeerdt summarized it very nicely for a general audience in Conservation Magazine here.
The global conference of the International Association for Impact Assessment (IAIA) 2017 was in Montreal on April 4-7, 2017. Our session, chaired by Aurora Torres and Jochen Jaeger: "Road Ecology in IA: New methods and platforms to move towards larger scales" went very well. Our session included papers from scholars and practitioners that (1) evaluate the effects of roads or other infrastructure on wildlife from all parts of the world, (2) propose novel methods for quantifying the magnitude and/or spatial distribution of these effects, and (3) are interested in approaches to improve knowledge exchange in international communities through open online platforms. Our session about "Uncertainty analysis and communication in IA practice and decision making" was chaired by Jill Blakley. It was very well attended.
Our new report about "Urban Sprawl in Europe" has been published in June 2016 on the Highlights website of the European Environment Agency - have a look at it here:
http://www.eea.europa.eu/highlights/better-targeted-measures-needed-to. It is also covered by the News of Concordia University here, together with Naghmeh's work about urban sprawl in Montreal and Quebec City. The journal 'Metro' also wrote about her work on 25 July 2016 (it even was on their title page).
The Urban-Sprawl-Metrics toolset (USM toolset) and the User Manual are now available here: www.wsl.ch/info/fokus/zersiedelung/onlinetool/index_EN
The new brochure about our project "Earth Observation in support of the City Biodiversity Index (EO4CBI)" is now available here: http://spectrum.library.concordia.ca/981925/
We are currently working on four major research projects (and a few smaller projects):
- Earth Observation in support of the City Biodiversity Index (EO4CBI) (brochure),
- Speak no evil, hear no evil? Uncertainty analysis and communication in Canadian environmental impact assessment practice and decision making (more information here),
- Monitoring the use and effectiveness of wildlife passages along HW 175 for small and medium-sized mammals (see News Bulletins below),
- Urban sprawl in Europe (more information here and here).
Here are two interviews with Jochen Jaeger about research on urban sprawl done in his lab in French (CREM) and about urban sprawl in Montreal in English (CTV).
Voluntary work
Building a Database of Environmental Assessment Reports about Roads
This project compares the strengths and weaknesses of environmental assessment (EA) reports to identify best practices and to learn from them for preparing future environmental assessments. To achieve this goal, a database has been created that now needs to be populated with EA reports and analyzed. You are highly welcome to help with this work. You will learn a lot about environmental impact assessment, how EA reports are prepared in practice, what methods are used, and what their strengths and weaknesses are. You can start this work at any time.
I am looking forward to hearing from you. If you already have some knowledge in computer modelling/programming, GIS, statistical analysis, or other quantitative skills, I would particularly like to encourage you to get in contact with me.
Current lab members
Jonathan Cole, PhD student:Past, present and future land-use in the Adirondack - Laurentians Ecological Corridor: Identifying risk areas for loss of connectivity due to roads and development and proposing proactive mitigation measures
Steffy Velosa, Honours student:
Wildlife road mortality along Highway 10 in Quebec and the need for road mitigation measures (link 1: La Voix de l'Est, link 2: Le téléjournal Estrie)
Jonathan Wilansky, PhD student:
An individual-based model of wildlife-vehicle collisions and the shifting of collision hotspots as a result of wildlife fencing along roads and the fence-end effect
Émilie Girard, MSc student:
Cumulative effects assessment: An analysis of legislation, regulations and guidelines in Canada
Michael Rolheiser, MSc student:
Beware of animal crossing: Roadkill hotspots along a high-traffic highway in Quebec, Canada
Navid Forouhar, MSc student:
Investigating potential drivers and other correlates of urban sprawl in Canadian census metropolitan areas (CMAs)
Sabrina Mruczek, MSc student:
To what degree do mandates of transport agencies consider biodiversity? An international comparison
Valérie Bolduc, MSc student:
How wildlife use existing crossing structures along roads in the Laurentians: Light at the end of the tunnel?
Zahra Najmi, MSc student: Proposing targets and limits to urban sprawl for Germany
Previous lab members
Clara Freeman-Cole, MSc student:How effective have national parks in Canada been since their designation at preventing landscape fragmentation?
Sepideh Mosharafian, MSc student:
Assessing the future of urban sprawl in Montreal using various reference scenarios (targets and limits) and greenbelt scenarios
Émilie Girard, Honours student:
Clearing up the confusion: A multilingual comparative analysis of definitions of urban sprawl
Carlene Kurdziel, Honours student:
Measuring urban sprawl in Montreal at the level of census tracts
Anastasiya Shchukina, Honours student:
Perceptions about current and future clean cooking technologies in rural Kenya: Transitioning to a more sustainable future?
Lucrezia Lischetti, Masters student (co-supervised with Emilio Padoa-Schioppa):
Investigating the effectiveness of Parco Agricolo Sud Milano at limiting urban sprawl using time series 1980-2018 in Milan, Italy
Xingyu Zhao, Honours student:
Four evaluation tools for the quality of science used in environmental impact assessments (EIAs)
Mirya Reid, Honours student:
Sharing cities with the future: How concerned are Montrealers today about the implications of their residential choices on future generations?
Charla Patterson, MEnv student:
Prioritizing landscape connectivity in Canadian environmental impact assessment: A critical review of current practices
Parnian Pourtaherian, MSc student:
Effectiveness of greenbelts at mitigating urban sprawl: A comparative study of 60 European cities (link 1: Concordia News: https://www.concordia.ca/news/stories/2022/10/25/greenbelts-are-effective-at-slowing-urban-sprawl-new-concordia-research-shows.html, link 2: CBC News: https://www.cbc.ca/news/canada/montreal/green-belts-curb-urban-sprawl-montreal-concordia-researchers-1.6642469)
Mehrdokht Pourali, MSc student:
Measuring and monitoring urban sprawl in Canada since 1971
Rafaela Cerqueira, PhD student, external (Brazil):
Effects of road mortality on felids in Brazil: Spatial analysis, landscape change, and population viability
Kendra Warnock-Juteau, Honours student:
How can existing crossing structures along roads be improved to encourage co-use by wildlife?
Stefano Re, Masters student, external (Italy):
Prioritizing road sections for wildlife fencing to reduce road mortality: Including the fence-end effect
Victoria Davison, Honours student:
Investigating the social correlates of urban sprawl in Montreal so as to be able to identify potential drivers
Benjamin Brunen, MSc student:
How do ambient and structural variables influence the entry into and full passage of drainage culverts by mammals and their ability to act as wildlife passages? (link)
Ariel Spanowicz, Research assistant:
Prioritizing road sections for wildlife fencing based on road mortality hotspots and coldspots at multiple scales
Naghmeh Nazarnia, MSc, Professional support/GIS-Analyst:
Earth Observation in Support of the City Biodiversity Index
Michelle Anderson, Honours student:
Observing the effect of human presence on the usage of crossing structures by medium and large mammals along Highway 10, Quebec
Daniella LoScerbo, Science College research study:
Behaviour of wildlife at potential crossing locations along HW 10
Samia Tabarah, MSc student:
A case study about the role of uncertainties in Canadian environmental impact assessments
Judith Plante, MSc student:
Monitoring traffic mortality and the effectiveness of wildlife fences along HWY 175
Ariel Spanowicz, Honours student:
Evaluating the reliability of two methods for measuring habitat connectivity in urbanizing landscapes
Ben Brunen, Honours student:
To what degree can regular drainage culverts serve as wildlife passages?
Antoni Di Done, Honours student:
Identifying wildlife corridors along HW 10: Integrating terrestrial and aquatic considerations
Aurora Torres, PhD student:
Wildlife in a human-dominated world: Impacts of anthropogenic landscape changes on birds and mammals in Spain (link)
Dr. Ernest I. Hennig, Postdoctoral Research Fellow:
Urban sprawl in Europe
Jorge Gaitan, MSc, Research Associate:
Permeability of highways for individuals and gene flow for American marten in the boreal forest
April Martinig, MSc student:
Evaluating the effectiveness of wildlife passages for small and medium-sized mammals
Katrina Bélanger-Smith, MSc student:
Monitoring the effectiveness of wildlife passages along HWY 175
Laura Roch, MSc student:
Mapping landscape connectivity in the A2A (Algonquin to Adirondack) region using Circuitscape
Juliette Lees, MSc student:
What is the role of uncertainties in Canadian environmental impact assessments?
Megan Deslauriers, Honours student:
Measuring the connectivity of the greenway network in southwest Montreal
Mary-Helen Paspaliaris, Honours student:
Life under the fast lane: Wildlife underpasses along HWY 175
Naghmeh Nazarnia, MSc student:
Monitoring urban sprawl in Montreal and Quebec City. Her work is presented in the News of Concordia University here.
Robby Marrotte, MSc, Research Associate:
Monitoring the effectiveness of wildlife passages along HWY 175 for American marten (Link)
Rodrigo Lima, MSc, Research Associate:
Monitoring the effectiveness of wildlife passages along HWY 175 for American marten
Solene Tremblay-Gendron, MSc, Field Technician:
Monitoring the effectiveness of wildlife passages along HWY 175
Maarten van Strien, PhD student, external (Switzerland)
Evan Hovington, MSc, Field technician:
Monitoring the effectiveness of wildlife passages along HWY 175
Adrienne Asgary, Honours student:
Application and critique of the connectivity metric of the City Biodiversity Index (CBI)
Maya Hernes, Honours student:
Ecological effectiveness of protected areas in Quebec
Homayra Shaikh, Honours student:
A critique of approaches for dealing with uncertainties in EIA
David Beauchesne, MSc student:
Influence of different barrier types on the use of landscape by forest-dwelling caribou (Rangifer tarandus caribou). (click for project description), co-supervised by Dr. M.-H. St-Laurent, UQAR (website).
Rushdia Mehreen, MSc student:
How are inner-city population densities affected by freeways? A study of eight Canadian cities
Dr. Francisco Madrinan, Postdoctoral Research Fellow:
Landscape fragmentation in Europe
Paul Grosman (1952-2017), MSc student:
Using agent-based modelling to evaluate mitigation measures for moose-vehicle collisions (2011). His work is presented in the News of Concordia University here: "Of moose and men".
Karen Paquin, MSc student:
Assessing the effects of forest management techniques on sequestering carbon in northern woodlots
Stephanie McConkey, Honours student
Robert Moriarity, EIA Internship
Yves Maurer, MSc student, external (Switzerland) (link)
Publications
User Manual
for calculating the urban sprawl metric Weighted Urban Proliferation (WUP) and its components:Nazarnia, N., Schwick, C., Kopecky, M., Soukup, T., Orlitova, E., Kienast, F., Jaeger, J.A.G. (2016): Urban Sprawl Metrics (USM) Toolset - User Manual. First edition, 8 September 2016. pdf
The USM toolset is available under the Creative Commons License here: www.wsl.ch/en/services-and-products/software-websites-and-apps/urban-sprawl-metrics-usm-toolset.html
A second edition is now available here:
Nazarnia, N., Schwick, C., Pourtaherian, P., Kopecky, M., Soukup, T., Orlitova, E., Kienast, F., Jaeger, J.A.G. (2023): Urban Sprawl Metrics (USM) Toolset – User Manual for ArcMap – Second Edition. Concordia University Montreal, Spectrum Research Repository. Link: https://spectrum.library.concordia.ca/id/eprint/992200/
and a version for QGIS is available here:
Pourtaherian, P., Nazarnia, N., Schwick, C., Maurer, Y., Schwab, J., Jaeger, J.A.G. (2023): Urban Sprawl Metrics (USM) Toolset – User Manual for QGIS – First Edition, 23 August 2023. Concordia University Montreal, Spectrum Research Repository. Link: https://spectrum.library.concordia.ca/id/eprint/992680/
News bulletins
Monitoring the effectiveness of wildlife passages along HW 175 for small and medium-sized mammals:Bulletin No. 1 (septembre 2012) - Français
Bulletin No. 1 (September 2012) - English
Bulletin No. 2 (mars 2013) - Français
Bulletin No. 2 (March 2013) - English
Bulletin No. 3 (octobre 2013) - Français
Bulletin No. 3 (October 2013) - English
Bulletin No. 4 (mai 2014) - Français
Bulletin No. 4 (May 2014) - English
Bulletin No. 5 (décembre 2014) - Français
Bulletin No. 5 (December 2014) - English
Bulletin No. 6 (mars 2015) - Français
Bulletin No. 6 (March 2015) - English
Bulletin No. 7 (janvier 2016) - Français
Bulletin No. 7 (January 2016) - English
Bulletin No. 8: Résultats et recommandations principales (décembre 2017) - Français
Bulletin No. 8: Main results and recommendations (December 2017) - English
Refereed Articles
- Wilansky, J., Jaeger, J.A.G. (2024): Predicting the effectiveness of wildlife fencing along roads using an individual-based model: How do fence-following distances influence the fence-end effect? - Ecological Modelling 495: 110784. https://doi.org/10.1016/j.ecolmodel.2024.110784
- Cole, J.R., Cheveau, M., Gallo, J.A., Kross, A., St-Laurent, M.-H., Jaeger, J.A.G. (2024): Land conversion and lack of protection significantly reduce suitable wolf habitat amount and functional connectivity in the Adirondack-to-Laurentians (A2L) transboundary wildlife linkage. - Regional Environmental Change 24: 126. https://doi.org/10.1007/s10113-024-02288-3
- Soanes, K., Rytwinski, T., Fahrig, L., Huijser, M., Jaeger, J.A.G., Teixeira, F.Z., van der Ree, R., van der Grift, E. (2024): Do wildlife crossing structures mitigate the barrier effect of roads on animal movement? A global assessment. - Journal of Applied Ecology 61(3): 417-430. https://doi.org/10.1111/1365-2664.14582
- Brenner, A.-K., Haas, W., Krüger, T., Matej, S., Haberl, H., Schug, F., Wiedenhofer, D., Behnisch, M., Jaeger, J.A.G., Pichler, M. (2024): What drives densification and sprawl in cities? A spatially explicit assessment for Vienna, between 1984 and 2018. - Land Use Policy 138: 107037. https://doi.org/10.1016/j.landusepol.2023.107037
- Quash, Y., Kross, A., Jaeger, J.A.G. (2024): Assessing the impact of gold mining on forest cover in the Surinamese Amazon from 1997 to 2019: A semi-automated satellite-based approach. - Ecological Informatics 80: 102442. https://doi.org/10.1016/j.ecoinf.2023.102442
- Cole, J.R., Koen, E.L., Pedersen, E.J., Gallo, J.A., Kross, A., Jaeger, J.A.G. (2023): Impacts of anthropogenic land transformation on species-specific habitat amount, fragmentation, and connectivity in the Adirondack-to-Laurentians (A2L) transboundary wildlife linkage between 2000 and 2015: Implications for conservation and ecological restoration. - Landscape Ecology 38(10): 2591-2621. https://doi.org/10.1007/s10980-023-01727-6
- Cole, J.R., Kross, A., Jaeger, J.A.G. (2023): Monitoring changes in landscape structure in the Adirondack-to-Laurentians (A2L) transboundary wildlife linkage from 1992-2018: Identifying priority areas for conservation and restoration. - Landscape Ecology 38(2): 383-408. https://doi.org/10.1007/s10980-022-01561-2
- Patterson, C., Torres, A., Coroi, M., Cumming, K., Hanson, M., Noble, B.F., Tabor, G.M., Treweek, J., Iglesias-Merchan, C., Jaeger, J.A.G. (2023): Pathways for improving the consideration of ecological connectivity in environmental assessment: Lessons from five case studies. - Impact Assessment and Project Appraisal 41(5): 374-390. https://doi.org/10.1080/14615517.2023.2246727 - Presented in the Research Spotlights of the Concordia news (19 Sept. 2023) here: https://www.concordia.ca/news/stories/2023/09/19/environmental-assessments-should-factor-in-ecological-connectivity-say-concordia-researchers.html
- Behnisch, M., Krüger, T., Jaeger, J.A.G. (2022): Rapid rise in urban sprawl: Global hotspots and trends since 1990. - PLOS Sustainability and Transformation 1(11): 0000034. https://doi.org/10.1371/journal.pstr.0000034. A summary for the general public is available here: https://www.ioer.de/en/press/news/study-on-global-urban-sprawl
- Pourtaherian, P., Jaeger, J.A.G. (2022): How effective are greenbelts at mitigating urban sprawl? A comparative study of 60 European cities. - Landscape and Urban Planning 227: 104532. https://doi.org/10.1016/j.landurbplan.2022.104532
- Patterson, C., Torres, A., Coroi, M., Cumming, K., Hanson, M., Noble, B., Tabor, G., Treweek, J., Jaeger, J.A.G. (2022): Treatment of ecological connectivity in environmental assessment: A global survey of current practices and common issues. - Impact Assessment and Project Appraisal 40(6): 460-474. https://doi.org/10.1080/14615517.2022.2099728
- Patterson, C., Casasanta Mostaço, F., Jaeger, J.A.G. (2022): Lack of consideration of ecological connectivity in Canadian environmental impact assessment: Current practice and need for improvement. - Impact Assessment and Project Appraisal 40(6): 481-494. https://doi.org/10.1080/14615517.2022.2135232
- Kross, A., Kaur, G., Jaeger, J.A.G. (2022): A geospatial framework for the assessment and monitoring of environmental impacts of agriculture. - Environmental Impact Assessment Review 97: 106851. https://doi.org/10.1016/j.eiar.2022.106851
- Pourali, M., Townsend, C., Kross, A., Guindon, A., Jaeger, J.A.G. (2022): Urban sprawl in Canada: Values in all 33 Census Metropolitan Areas and corresponding 469 Census Subdivisions between 1991 and 2011. - Data in Brief 41: 107941. https://doi.org/10.1016/j.dib.2022.107941
- Walz, U., Jaeger, J.A.G., Haber, W. (2022): Arguments and options for quantifying and monitoring differentiated land use. - Raumforschung und Raumordnung 80/5: 505-521. https://doi.org/10.14512/rur.155
- Behnisch, M., Krüger, T., Jaeger, J.A.G. (2022): What is the extent of urban sprawl in Germany's planning regions? Spatial analysis and trends 1990-2014. - Natur und Landschaft 97(12): 551-560. https://doi.org/10.19217/NuL2022-12-02
- Cerqueira, R.C., de Rivera, O.R., Jaeger, J.A.G., Grilo, C. (2021): Direct and indirect effects of roads on space use by jaguars in Brazil. - Scientific Reports 11: 22617. doi.org/10.1038/s41598-021-01936-6. Online: https://rdcu.be/cBC1S
- Andrasi, B., Jaeger, J.A.G., Heinicke, S., Metcalfe, K., Hockings, K.J. (2021): Quantifying the road-effect zone for a critically endangered primate. - Conservation Letters: e12839. Online (open access): https://conbio.onlinelibrary.wiley.com/doi/10.1111/conl.12839. Covered by EurekAlert here: https://www.eurekalert.org/news-releases/928202
- Torres, A., Simoni, M.U., Keiding, J.K., Müller, D.B., zu Ermgassen, S.O.S.E., Liu, J., Jaeger, J.A.G., Winter, M., Lambin, E.F. (2021): Sustainability of the global sand system in the Anthropocene. - One Earth 4 (May 21, 2021): 639-650, https://doi.org/10.1016/j.oneear.2021.04.011. You can listen to Aurora Torres in an Interview on CBC Radio ("Quirks & Quarks") here.
- Coffin, A.W., Ouren, D.S., Bettez, N.D., Borda-de-Água, L., Daniels, A.E., Grilo, C., Jaeger, J.A.G., Navarro, L.M., Preisler, H.K., Rauschert, E.S.J. (2021): The Ecology of Rural Roads: Effects, Management, and Research. - Issues in Ecology 23 (36 pages). The Ecological Society of America (ESA). Online: https://www.esa.org/publications/issues/ Press release by the ESA: https://www.esa.org/blog/2021/06/22/new-report-highlights-best-practices-for-sustainable-rural-infrastructure/ Covered in the Concordia News here: https://www.concordia.ca/news/stories/2021/06/28/concordia-research-highlights-how-to-reduce-the-ecological-impact-of-rural-roads.html
- Cerqueira, R.C., Leonard, P., Goncalves da Silva, L., Bager, A., Clevenger, A.P., Jaeger, J.A.G., Grilo, C. (2021): Potential movement corridors and high road-kill likelihood do not spatially coincide for felids in Brazil: Implications for road mitigation. - Environmental Management 67: 412-423. Online: https://doi.org/10.1007/s00267-020-01411-4. Full-text view-only link: https://rdcu.be/cdR1T
- Brunen, B., Daguet, C., Jaeger, J.A.G. (2020): What attributes are relevant for drainage culverts to serve as efficient road crossing structures for mammals? - Journal of Environmental Management 268: 110423. Online: doi.org/10.1016/j.jenvman.2020.110423. - A summary for practitioners is available on the website TransportEcology.info here.
- Spanowicz, A.G., Teixeira, F.Z., Jaeger, J.A.G. (2020): An adaptive plan for prioritizing road sections for fencing to reduce animal mortality. - Conservation Biology 34(5): 1210-1220. Online: https://conbio.onlinelibrary.wiley.com/doi/10.1111/cobi.13502 - Nicely summarized for the general public in The Wildlife Society here and in The Conversation here and on the the website TransportEcology.info here.
- Aksamit, C.K., Blakley, J.A., Jaeger, J.A.G., Noble, B.F., Westman, C.N. (2020): Sources of uncertainties in environmental assessment: Lessons about uncertainty disclosure and communication from an oil sands extraction project in Northern Alberta. - Journal of Environmental Planning and Management 63(2): 317-334. Online: https://www.tandfonline.com/doi/full/10.1080/09640568.2019.1579973
- Spanowicz, A.G., Jaeger, J.A.G. (2019): Measuring landscape connectivity: On the importance of within-patch connectivity. - Landscape Ecology 34(10): 2261-2278. The PDF is visible here.
- Nazarnia, N., Harding, C., Jaeger, J.A.G. (2019): How suitable is entropy as a measure of urban sprawl? - Landscape and Urban Planning 184: 32-43. PDF online at https://authors.elsevier.com/a/1YKi1cUG5AptL
- Plante, J., Jaeger, J.A.G., Desrochers, A. (2019): How do landscape context and fences influence roadkill locations of small and medium-sized mammals? - Journal of Environmental Management 235: 511-520. Online: https://www.sciencedirect.com/science/article/pii/S0301479718312337 - Presented in the Concordia News here.
- Jaeger, J.A.G., Spanowicz, A.G., Bowman, J., Clevenger, A.P. (2019): Clôtures et passages fauniques pour les petits et moyens mammifères le long de la route 175 au Québec: quelle est leur efficacité? - Le Naturaliste canadien 143(1): 69-80 pdf online
- Fahrig, L., Arroyo-Rodríguez, V., Bennett, J.R., Boucher-Lalonde, V., Cazetta, E., Currie, D.J., Eigenbrod, F., Ford, A.T., Harrison, S.P., Jaeger, J.A.G., Koper, N., Martin, A.E., Martin, J.-L., Metzger, J.P., Morrison, P., Rhodes, J.R., Saunders, D.A., Simberloff, D., Smith, A.C., Tischendorf, L., Vellend, M., Watling, J.I. (2019): Is habitat fragmentation bad for biodiversity? Response to Fletcher et al. (2018). - Biological Conservation 230: 179-186. PDF at https://www.sciencedirect.com/science/article/pii/S0006320718313375.
- Ascensão, F., Fahrig, L., Clevenger, A.P., Corlett, R.T., Jaeger, J.A.G., Laurance, W.F., Pereira, H.M. (2018): Environmental challenges for the Belt and Road Initiative. - Nature Sustainability 1: 206-209 (online link). - Presented in the Concordia News here.
- Bissonnette, J.-F., Dupras, J., Messier, C., Lechowicz, M., Dagenais, D., Paquette, A., Jaeger, J.A.G., Gonzalez, A. (2018): Moving forward in implementing green infrastructures: Stakeholder perceptions of opportunities and obstacles in a major North American metropolitan area. - Cities 81: 61-70. PDF online: www.sciencedirect.com/science/article/pii/S0264275117308740
- Deslauriers, M.R., Asgary, A., Nazarnia, N., Jaeger, J.A.G. (2018): Implementing the connectivity of natural areas in cities as an indicator in the City Biodiversity Index (CBI). - Ecological Indicators 94: 99-113, Corrigendum 94: 114-115. Online: http://www.sciencedirect.com/science/article/pii/S1470160X17300912. Corrigendum at https://www.sciencedirect.com/science/article/pii/S1470160X17306052
- Pavlyuk, O., Noble, B.F., Blakley, J.A.E., Jaeger, J.A.G. (2017): Fragmentary provisions for uncertainty disclosure and consideration in EA legislation, regulations and guidelines and the need for improvement. - Environmental Impact Assessment Review 66: 14-23. PDF online: http://www.sciencedirect.com/science/article/pii/S0195925517301312
- Rytwinski, T., Soanes, K., Jaeger, J.A.G., Fahrig, L., Findlay, C.S., Houlahan, J., van der Ree, R., van der Grift, E.A. (2016): How effective is road mitigation at reducing road-kill? A meta-analysis. - PLoS ONE 11(11): e0166941. PDF online: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0166941
- Torres, A., Jaeger, J.A.G., Alonso, J.C. (2016): Assessing large-scale wildlife responses to human infrastructure development. – Proceedings of the National Academy of Sciences of the United States of America (PNAS) 113(30): 8472-8477. Online: http://www.pnas.org/content/early/2016/07/05/1522488113.abstract
- Walz, U., Jaeger, J. (2016): Fracking is a significant driver of landscape fragmentation. (Folgen von Fracking: Ein neuer Schub der Landschaftsfragmentierung ist zu erwarten). – GAIA: Ecological Perspectives for Science and Society 25(2): 99-104. PDF online: https://www.oekom.de/fileadmin/zeitschriften/gaia_leseproben/GAIA2_2016_99_104_Jaeger.pdf
- Torres, A., Jaeger, J.A.G., Alonso, J.C. (2016): Multi-scale mismatches between urban sprawl and landscape fragmentation create windows of opportunity for conservation development. – Landscape Ecology, in press. Online: http://link.springer.com/article/10.1007%2Fs10980-016-0400-z
- Lees, J., Jaeger, J.A.G., Gunn, J.A.E., Noble, B.F. (2016): Analysis of uncertainty consideration in environmental assessment: An empirical study of Canadian EA practice. – Journal of Environmental Planning and Management 59(11): 2024-2044. Online: http://www.tandfonline.com/doi/full/10.1080/09640568.2015.1116980
- Leung, W., Noble, B.F., Jaeger J.A.G., Gunn, J.A.E. (2016): Disparate perceptions about uncertainty consideration and disclosure practices in environmental assessment and opportunities for improvement. – Environmental Impact Assessment Review 57: 89-100. Online: http://authors.elsevier.com/a/1SB7EiZ5slUsd
- Nazarnia, N., Schwick, C., Jaeger, J.A.G. (2016): Accelerated urban sprawl in Montreal, Quebec City, and Zurich: Investigating the differences using time series 1951-2011. – Ecological Indicators 60: 1229-1251. Online: http://authors.elsevier.com/a/1S1qw,XRNLMSM7 - It is highlighted in the News of Concordia University here.
- Hennig, E.I., Schwick, C., Soukup, T., Orlitova, E., Kienast, F., Jaeger, J.A.G. (2015): Multi-scale analysis of urban sprawl in Europe: Towards a European de-sprawling strategy. – Land Use Policy 49: 483-498. Online: http://www.sciencedirect.com/science/article/pii/S0264837715002367 - It is highlighted in the News of Concordia University here.
- Rytwinski, T., van der Ree, R., Cunnington, G.M., Fahrig, L., Findlay, C.S., Houlahan, J., Jaeger, J.A.G., Soanes, K., van der Grift, E.A. (2015): Experimental study designs to improve the evaluation of road mitigation measures for wildlife. – Journal of Environmental Management 154: 48-64. Online: http://www.sciencedirect.com/science/article/pii/S030147971500064X, presented in the Concordia News here.
- Leung, W., Noble, B., Gunn, J., Jaeger, J.A.G. (2015): A review of uncertainty research in impact assessment. – Environmental Impact Assessment Review 50: 116-123. Online: http://www.sciencedirect.com/science/article/pii/S0195925514000936
- Beauchesne, D., Jaeger, J.A.G., St-Laurent, M.-H. (2014): Thresholds in the capacity of boreal caribou to cope with cumulative disturbances: Evidence from space use patterns. – Biological Conservation 172: 190-199. Online: http://www.sciencedirect.com/science/article/pii/S0006320714001104
- Roch, L., Jaeger, J.A.G. (2014): Monitoring an ecosystem at risk: What is the degree of grassland fragmentation in the Canadian Prairies? – Environmental Monitoring and Assessment 186(4): 2505-2534, Erratum 186(5): 3299-3301. Online: http://dx.doi.org/10.1007/s10661-013-3557-9 Erratum at http://dx.doi.org/10.1007/s10661-014-3641-9.
- Jaeger, J.A.G., Schwick, C. (2014): Improving the measurement of urban sprawl: Weighted Urban Proliferation (WUP) and its application to Switzerland. – Ecological Indicators 38: 294-308. http://www.sciencedirect.com/science/article/pii/S1470160X13004858
- van der Grift, E.A., van der Ree, R., Fahrig, L., Findlay, C.S., Houlahan, J.E., Jaeger, J.A.G., Klar, N., Madrinan L.F., Olson, L. (2013): Evaluating the effectiveness of road mitigation measures. – Biodiversity and Conservation 22: 425-448. DOI 10.1007/s10531-012-0421-0. pdf
- Thompson, U.-C., Marsan, J.-F., Fournier-Peyresblanques, B., Forgues, C., Ogaa, A., Jaeger, J.A.G. (2013): Using Compliance Analysis for PPP to Bridge the Gap between SEA and EIA: Lessons from the Turcot Interchange Reconstruction in Montréal, Québec. – Environmental Impact Assessment Review 42: 74-86. http://dx.doi.org/10.1016/j.eiar.2012.10.001.
- Beauchesne, D., Jaeger, J.A.G., St-Laurent, M.-H. (2013): Disentangling woodland caribou movements in response to clearcuts and roads across temporal scales. – PLoS ONE 8(11): e77514. pdf
- Grosman, P.D., Jaeger, J.A.G., Biron, P.M., Dussault, C., Ouellet, J.-P. (2012): Évaluation de l'efficacité des mesures d'atténuation des accidents routiers impliquant l'orignal par la modélisation individu-centrée. – Le Naturaliste Canadien 136(2) (special issue on "Routes et la faune terrestre : de la science aux solutions"), pp. 16-21. pdf
- Jaeger, J.A.G. (2012): L'impact des constructions routières sur la fragmentation du territoire en Suisse (1885-2002) : quelles leçons retenir ? – Le Naturaliste Canadien 136(2) (special issue on "Routes et la faune terrestre : de la science aux solutions"), pp. 83-88. pdf
- Grosman, P.D., Jaeger, J.A.G., Biron, P.M., Dussault, C., Ouellet, J.-P. (2011): Trade-off between road avoidance and attraction by roadside salt pools in moose: An agent-based model to assess measures for reducing moose-vehicle collisions. – Ecological Modelling 222(8): 1423-1435. http://www.sciencedirect.com/science/article/pii/S0304380011000548
- Jaeger, J.A.G., Bertiller, R., Schwick, C., Cavens, D., Kienast, F. (2010): Urban permeation of landscapes and sprawl per capita: New measures of urban sprawl. – Ecological Indicators 10(2): 427-441. pdf
- Jaeger, J.A.G., Bertiller, R., Schwick, C., Kienast, F. (2010): Suitability criteria for measures of urban sprawl. – Ecological Indicators 10(2): 397-406. pdf
- Wissen Hayek, U., Jaeger, J.A.G., Schwick, C., Jarne, A., Schuler, M. (2011): Measuring and assessing urban sprawl: What are the remaining options for future settlement development in Switzerland for 2030?; Applied Spatial Analysis and Policy, 4(4):249-279 accepted (final layout version available at www.springerlink.com)pdf
- Grosman, P.D., Jaeger, J.A.G., Biron, P.M., Dussault, C., Ouellet, J.-P. (2009): Reducing moose-vehicle collisions through salt pool removal and displacement: an agent-based modeling approach. – Ecology and Society 14(2): 17. [online] URL: http://www.ecologyandsociety.org/vol14/iss2/art17/
- Nobis, M.P., Jaeger, J.A.G., Zimmermann, N.E. (2009): Neophyte species richness at the landscape scale under urban sprawl and climate warming. – Diversity and Distributions: A Journal of Conservation Biogeography 15: 928-939. pdf (1.4 MB)
- Jaeger, J.A.G., Bertiller, R., Schwick, C., Müller, K., Steinmeier, C., Ewald, K.C., Ghazoul, J. (2008): Implementing landscape fragmentation as an indicator in the Swiss Monitoring System of Sustainable Development (MONET). – Journal of Environmental Management 88(4): 737-751. pdf (1.8 MB)
- Girvetz, E.H., Thorne, J.H., Berry, A.M., Jaeger, J.A.G. (2008): Integration of landscape fragmentation analysis into regional planning: A statewide multi-scale case study from California, USA. - Landscape and Urban Planning 86: 205-218. pdf (3.3 MB)
- Girvetz, E.H., Jaeger, J.A.G., Thorne, J.H. (2007): Comment on "Roadless Space of the Conterminous United States". – Science, vol. 318, no 5854 (23 Nov.): 1240b, online: http://www.sciencemag.org/cgi/content/full/318/5854/1240b
- Roedenbeck, I.A., Fahrig, L., Findlay, C.S., Houlahan, J., Jaeger, J.A.G., Klar, N., Kramer-Schadt, S., van der Grift, E.A. (2007): The Rauischholzhausen Agenda for Road Ecology. – Ecology and Society 12(1): 11. [online] URL: http://www.ecologyandsociety.org/vol12/iss1/art11/
- Jaeger, J.A.G., Schwarz-von Raumer, H.-G., Esswein, H., Müller, M., Schmidt-Lüttmann, M. (2007): Time series of landscape fragmentation caused by transportation infrastructure and urban development: a case study from Baden-Württemberg (Germany). – Ecology and Society 12(1): 22. [online] URL: http://www.ecologyandsociety.org/vol12/iss1/art22/
- Moser, B., Jaeger, J.A.G., Tappeiner, U., Tasser, E., Eiselt, B. (2007): Modification of the effective mesh size for measuring landscape fragmentation to solve the boundary problem. – Landscape Ecology 22(3): 447-459. pdf (2.7 MB)
- Jaeger, J., Pluess, A., Klank, C., Ghazoul, J. (2007): Challenges for forestry and forest research: How to promote effective cooperation between science and practice? (in German: Herausforderungen für Forstwirtschaft und forstliche Forschung: Wie können Wissenschaft und Praxis wirksamer zusammenarbeiten?). – GAIA 16/4: 261-266. pdf
- Jaeger, J. (2006): How do measures intended to reduce the impacts of roads and traffic affect animal populations? Simulation of persistence probabilities (in German; Wie wirken Minderungsmaßnahmen zur Entschneidung auf Tierpopulationen? Simulation von Überlebenswahrscheinlichkeiten). – Naturschutz und Landschaftsplanung 38(10-11), 232-329. link to journal
- Jaeger, J.A.G., Bowman, J., Brennan, J., Fahrig, L., Bert, D., Bouchard, J., Charbonneau, N., Frank, K., Gruber, B., and K. Tluk von Toschanowitz (2005): Predicting when animal populations are at risk from roads: an interactive model of road avoidance behavior. – Ecological Modelling 185: 329-348. pdf
- Jaeger, J., Holderegger, R. (2005): Thresholds of landscape fragmentation (in German; Schwellenwerte der Landschaftszerschneidung). – GAIA 14(2): 113-118. pdf
- Jaeger, J.A.G., and L. Fahrig (2004): Effects of road fencing on population persistence. – Conservation Biology 18(6): 1651-1657. pdf
- Bowman, J., Jaeger, J.A.G., and L. Fahrig (2002): Dispersal distance of mammals is proportional to home range size. – Ecology 83(7): 2049-2055. pdf
- Scheringer, M., Böschen, S., and J. Jaeger (2001): Environmental research: what for? - On the tension between research traditions and external orientations in environmental politics. Part I: A case study from ecological chemistry (in German; Wozu Umweltforschung? - Über das Spannungsverhältnis zwischen Forschungstraditionen und umweltpolitischen Leitbildern. Teil I: Das Beispiel "Ökologische Chemie"). – GAIA 10(2): 125-135. pdf
- Böschen, S., Scheringer, M., and J. Jaeger (2001): Environmental research: what for? - On the tension between research traditions and external orientations in environmental politics. Part II: Towards the guiding principle of “reflexive environmental research” (in German; Wozu Umweltforschung? - Über das Spannungsverhältnis zwischen Forschungstraditionen und umweltpolitischen Leitbildern. Teil II: Zum Leitbild "Reflexive Umweltforschung"). – GAIA 10(3): 203-212. pdf
- Jaeger, J. (2001): Landscape fragmentation and urban sprawl: the need for new assessment methods and the contribution of ecological modelling (in German; Landschaftszerschneidung und -zersiedelung: Bedarf nach neuen Bewertungsverfahren und der Beitrag der ökologischen Modellierung). – Zeitschrift für angewandte Umweltforschung (ZAU) 14(1-4): 247-267. pdf
- Jaeger, J., Esswein, H., Schwarz-von Raumer, H.-G., and M. Müller (2001): Landscape fragmentation in Baden-Wurttemberg in its present state - results of a state-wide quantitative study (in German; Landschaftszerschneidung in Baden-Württemberg - Ergebnisse einer landesweiten räumlich differenzierten quantitativen Zustandsanalyse). – Naturschutz und Landschaftsplanung 33(10): 305-317. pdf (1.4 MB)
- Jaeger, J.A.G. (2000): Landscape division, splitting index, and effective mesh size: New measures of landscape fragmentation. – Landscape Ecology 15(2): 115–130. pdf
- Jaeger, J. (2000): Assessment of environmental interference and the need for a distinction between different kinds of incertitude – an empirical investigation on dealing with incertitude (in German; Bedarf nach Unsicherheits-Unterscheidungen. Eine empirische Untersuchung zum Umgang mit Unsicherheit bei der Eingriffsbewertung). – Naturschutz und Landschaftsplanung 32(7): 204-212. pdf
- Jaeger, J., and M. Scheringer (1998): Transdisciplinary research: problem-orientation and unconstrained choice of appropriate methods (in German; Transdisziplinarität: Problemorientierung ohne Methodenzwang). – GAIA 7(1): 10–25. pdf (4.2 MB)
- Jaeger, J. (1998): On the use of exposition and configuration as stages for assessing environmental threats (in German; Exposition und Konfiguration als Bewertungsebenen für Umweltgefährdungen). – Zeitschrift für angewandte Umweltforschung (ZAU) 11(3/4): 444–466.
Guest editor of special issues of peer-reviewed journals
- Torres, A., Patterson, C., Jaeger, J.A.G. (2023): Advancing the consideration of ecological connectivity in environmental assessment - Part 2 of the special issue. - Impact Assessment and Project Appraisal 41(5): 330-332. http://dx.doi.org/10.1080/14615517.2023.2239586
- Torres, A., Patterson, C., Jaeger, J.A.G. (2022): Advancing the consideration of ecological connectivity in environmental assessment: Synthesis and next steps forward. - Impact Assessment and Project Appraisal 40(6): 451-459. https://doi.org/10.1080/14615517.2022.2134619
- van der Ree, R., Jaeger, J.A.G., Van der Grift, E., Clevenger, A.P. (guest editors) (2009-2010): Effects of Roads and Traffic on Wildlife Populations and Landscape Function. Special feature of Ecology and Society, vol. 14-15. http://www.ecologyandsociety.org/viewissue.php?sf=41
- Jaeger, J., Scheringer, M. (editors) (2006-2008): Environmental Research. (in German; Umweltforschung). Special issue of GAIA, vol. 15 - 16.
(a.) Jaeger, J., Scheringer, M. (2006): Introduction: Why does environmental research not contribute more substantially to environmental problem solving? Seed text and overview for the special issue on Environmental Research. (in German; Einführung: Warum trägt die Umweltforschung nicht stärker zur Lösung von Umweltproblemen bei? Ausgangstext und Einleitung zum Themenschwerpunkt Umweltforschung). – GAIA 15(1): 20-23. pdf
(b.) Scheringer, M., Jaeger, J. (2008): Is environmental research in a crisis? Conclusion and outlook. (in German; Umweltforschung in der Krise? Fazit und Ausblick. Abschlusstext zum Themenschwerpunkt Umweltforschung). – GAIA 17(1): 31-35. pdf - Roedenbeck, I.A., Jaeger, J. (editors) (2006): Road Ecology. Special issue of Naturschutz und Landschaftsplanung, vol. 38(10-11): 293-356.
(a.) Roedenbeck, I.A., Jaeger, J. (2006): Towards landscape-scale research in road ecology. Editorial for the special issue on Road Ecology. – Naturschutz und Landschaftsplanung 38(10-11): 297-299. pdf - Jaeger, J., Grau, S., Haber, W. (editors) (2005): Landscape fragmentation due to transportation infrastructure and urban development: from recognition of the problem to implementation of measures. (in German; Landschaftszerschneidung: Von der Problemerkennung zum Handeln). Special issue of GAIA, vol. 14, issue 2, 120 pp.
(a.) Jaeger, J., Grau, S., Haber, W. (2005): Landscape fragmentation due to transportation infrastructure and urban development: from recognition of the problem to implementation of measures. Editorial (in German; Landschaftszerschneidung: von der Problemerkennung zum Handeln. Editorial zum Themenschwerpunkt Landschaftszerschneidung). – GAIA 14(2): 81. pdf
(b.) Jaeger, J., Grau, S., Haber, W. (2005): Introduction: Landscape fragmentation and the consequences. (in German; Einführung: Landschaftszerschneidung und die Folgen). GAIA 14(2): 98-100.pdf
Chapters in Books
- Jaeger, J.A.G., Torres, A. (2021): Fourteen lessons from road ecology for cumulative effect assessments. In: Blakley, J.A.E., Franks, D.M. (Eds.): Handbook of Cumulative Impact Assessment. Edward Elgar Publishing, UK, ISBN: 978 1 78347 4011, pp. 250-273. Online: https://www.e-elgar.com/shop/usd/handbook-of-cumulative-impact-assessment-9781783474011.html
- Jaeger, J.A.G., Schwick, C., Hennig, E.I., Schwarzak, M., Krüger, T., Behnisch, M., Soukup, T., Orlitova, E., Nazarnia, N., Kienast, F. (2018): Measurement of urban sprawl allows for monitoring and better consideration in planning (in German; Messung der Zersiedelung ermöglicht Monitoring und stärkere Berücksichtigung in der Planung). In: M. Behnisch, O. Kretschmer, G. Meinel (eds.): Flächeninanspruchnahme in Deutschland. ISBN 978-3-662-50304-1. Springer Spektrum, Berlin. pp. 245-267. www.springer.com/de/book/9783662503041
- Jaeger, J.A.G., Soukup, T., Schwick, C., Madrinan, L.F., Kienast, F. (2016): Landscape Fragmentation in Europe. In: Feranec, J., Soukup, T., Hazeu, G., Jaffrain, G. (eds.): European Landscape Dynamics: CORINE Land Cover Data. CRC Press / Taylor & Francis Group. ISBN 9781482244663. pp. 157-198. https://www.crcpress.com/European-Landscape-Dynamics-CORINE-Land-Cover-Data/Feranec-Soukup-Hazeu-Jaffrain/p/book/9781482244663
- Jaeger, J.A.G. (2015): Improving environmental impact assessment and road planning at the landscape scale. In: R. van der Ree, C. Grilo, D. Smith (eds.): Handbook of Road Ecology. Wiley-Blackwell. pp. 32-42. http://ca.wiley.com/WileyCDA/WileyTitle/productCd-1118568184.html
- van der Ree, R., Jaeger, J.A.G., Rytwinski, T., van der Grift, E.A. (2015): Good science and experimentation are needed in road ecology. In: R. van der Ree, C. Grilo, D. Smith (eds.): Handbook of Road Ecology. Wiley-Blackwell. pp. 71-81. http://ca.wiley.com/WileyCDA/WileyTitle/productCd-1118568184.html
- van der Grift, E.A., van der Ree, R., Jaeger, J.A.G. (2015): Guidelines for evaluating the effectiveness of road mitigation measures. In: R. van der Ree, C. Grilo, D. Smith (eds.): Handbook of Road Ecology. Wiley-Blackwell. pp. 129-137. http://ca.wiley.com/WileyCDA/WileyTitle/productCd-1118568184.html
- Marsh, D.M., Jaeger, J.A.G. (2015): Chapter 3. Direct effects of roads on small animal populations. In: K.M. Andrews, P. Nanjappa, S.P.D. Riley (eds.): Roads and Ecological Infrastructure: Concepts and Applications for Small Animals. Johns Hopkins University Press, Baltimore, MD. https://jhupbooks.press.jhu.edu/content/roads-and-ecological-infrastructure
- Beierkuhnlein, C., Jentsch, A., Jaeger, J.A.G., Ellwanger, G. (2014): Nature conservation in times of climate change: Consequences and challenges (in German; Naturschutz in Zeiten des Klimawandels: Konsequenzen und Herausforderungen). In: C. Beierkuhnlein, A. Jentsch, B. Reineking, H. Schlumprecht, G., Ellwanger (Hrsg.): Auswirkungen des Klimawandels auf Fauna, Flora und Lebensräume sowie Anpassungsstrategien des Naturschutzes. Buchreihe "Naturschutz und Biologische Vielfalt" Band 137, Bundesamt für Naturschutz, Bonn, LV Druck im Landwirtschaftsverlag, Münster, pp. 417-432.
- Schwick, C., Kienast, F., Jaeger, J. (2013): Consideration of landscape fragmentation and urban sprawl in the Swiss Landscape Observation system (in German; Zerschneidung und Zersiedelung im Rahmen der Landschaftsbeobachtung Schweiz). In: G. Meinel, U. Schumacher, M. Behnisch (Hrsg.): Flächennutzungsmonitoring V: Methodik - Analyseergebnisse - Flächenmanagement. IOER-Schriften Band 61. Rhombus-Verlag, Berlin, pp. 63-70. Link
- Jaeger, J.A.G. (2012): "Road Ecology". Invited contribution to the Encyclopedia of Sustainability, Vol. 5: Ecosystem Management and Sustainability. Berkshire Publishing Group, Great Barrington, MA, pp. 344-350. pdf
- Jaeger, J., Scheringer, M. (2011): Tasks of environmental research (in German; Aufgaben der Umweltforschung). In: W. Schröder, O. Fränzle, F. Müller (Eds.) (1997 ff.): Handbuch der Umweltwissenschaften: Grundlagen und Anwendungen der Ökosystemforschung. Kap. II-1.1, 20th fascicle 3/11. Wiley-VCH, 17 pp. pdf
- Jaeger, J., and R. Bertiller (2006): Objectives and limits of measures of landscape structure – the example of urban sprawl (in German; Aufgaben und Grenzen von Messgrößen für die Landschaftsstruktur – das Beispiel Zersiedelung). – In: M. Bürgi, T. Coch, K. M. Tanner (Eds.): Landschaftsqualitäten. Haupt Verlag, Bern, pp. 159–184. pdf
- Jaeger, J. (2004): VII-12 Fragmentation of landscapes due to transportation infrastructure and urban development (in German; VII-12 Zerschneidung der Landschaft durch Verkehrswege und Siedlungsgebiete). – In: Konold, W., R. Böcker, U. Hampicke (Eds.) (1999ff.): Handbuch Naturschutz und Landschaftspflege. 14th fascicle 12/2004. Ecomed-Verlag, Landsberg, Germany. 36 pp. [handbook article] pdf (1.7 MB)
- Jaeger, J. (2003): II-5.3 Landscape fragmentation (in German; II-5.3 Landschaftszerschneidung). - In: Konold, W., R. Böcker, U. Hampicke (Eds.) (1999ff.): Handbuch Naturschutz und Landschaftspflege. 11th fascicle 11/2003. Ecomed-Verlag, Landsberg, Germany. 30 pp. [handbook article] pdf (2.7 MB)
- Jaeger, J. (2001): Quantification of landscape fragmentation including functional spatial interrelations (in German; Ansätze zur Quantifizierung der Landschaftszerschneidung und die Einbeziehung räumlich-funktionaler Zusammenhänge). – In: Jopp, F., and G. Weigmann (Eds.): Rolle und Bedeutung von Modellen für den ökologischen Erkenntnisprozeß. Beiträge zu einer Tagung des Arbeitskreises "Theorie" in der Gesellschaft für Ökologie vom 1.–3. März 2000. Peter Lang, Frankfurt/Main, pp. 115-126. pdf
- Jaeger, J. (2000): On the distinction between different kinds of incertitude in the assessment of landscape impacts (in German; Zur Unterscheidung zwischen verschiedenen Arten von Unsicherheit bei der Bewertung von Landschaftseingriffen). – In: Jax, K. (Hrsg.): Funktionsbegriff und Unsicherheit in der Ökologie. Beiträge zu einer Tagung des Arbeitskreises "Theorie" in der Gesellschaft für Ökologie vom 10.–12. März 1999. Peter Lang, Frankfurt/Main, pp. 115-137. pdf
- Jaeger, J. (2000): From "ecological risks" to "environmental threats": some critical remarks on the effect-oriented concept of risk (in German; Vom "ökologischen Risiko" zur "Umweltgefährdung": Einige kritische Gedanken zum wirkungsorientierten Risikobegriff). – In: Breckling, B., and F. Müller (Eds.): Der ökologische Risikobegriff. Beiträge zu einer Tagung des Arbeitskreises "Theorie" in der Gesellschaft für Ökologie vom 4.–6. März 1998. Peter Lang, Frankfurt/Main, pp. 203–216.
- Müller, D., Perrochet, S., Faist, M., and J. Jaeger (1998): Nutriment and recreation in a disappearing countryside (in German; Ernähren und Erholen mit knapper werdender Landschaft). – In: Baccini, P., and F. Oswald (Eds.): Netzstadt: Transdisziplinäre Methoden zum Umbau urbaner Systeme. – Vdf Hochschulverlag an der ETH Zürich, Zürich 1998: 28–59.
Books and reports
- Schwick, C., Jaeger, J., Hersperger, A., Cathomas, G., Muggli, R. (2018): Measuring and limiting urban sprawl - measures and targets for Switzerland, its cantons, and its municipalities (in German: Zersiedelung messen und begrenzen - Massnahmen und Zielvorgaben für die Schweiz, ihre Kantone und Gemeinden). Zürich, Bristol-Stiftung; Bern, Haupt-Verlag (can be ordered here).
- Hennig, E.I., Soukup, T., Orlitova, E., Schwick, C., Kienast, F., Jaeger, J.A.G. (2016): Urban sprawl in Europe. Joint EEA-FOEN report. EEA Report No 11/2016. Published by the European Environment Agency and the Swiss Federal Office for the Environment. ISSN 1777-8449, ISBN 978-92-9213-738-0, doi: 10.2800/143470. Luxembourg, Publications Office of the European Union. 135 pp. ( Annexes 1-5: Urban sprawl in Europe. Joint EEA-FOEN report. 141 pp.). PDF online: http://www.eea.europa.eu/publications/urban-sprawl-in-europe, presented in the EEA Highlights here and in the News of Concordia University here.
- Roch, L., Jaeger, J.A.G. (2012): Monitoring an Ecosystem at Risk: Fragmentation of Grasslands in the Canadian Prairies. Pilot project: Final Report for Environment Canada. Concordia University, Department of Geography, Planning and Environment, Montreal. 184 pp.
- Jaeger, J.A.G., Soukup, T., Madrinan, L.F., Schwick, C., Kienast, F. (2011): Landscape fragmentation in Europe. Joint EEA-FOEN report. EEA Report No 2/2011. Published by the European Environment Agency and the Swiss Federal Office for the Environment. ISSN 1725-9177, ISBN 978-92-9213-215-6, doi:10.2800/78322. Luxembourg, Publications Office of the European Union. 87 pp. Available in printed form and as PDF online: http://www.eea.europa.eu/publications/landscape-fragmentation-in-europe/, presented in Concordia News here (because we received an award for it).
- Schwick, C., Jaeger, J., Bertiller, R., Kienast, F. (2010): Urban Sprawl in Switzerland - unstoppable? Quantitative Analysis 1935 to 2002 and Implications for Regional Planning. (in German: Quantitative Analyse 1935 bis 2002 und Folgerungen für die Raumplanung.) Bristol Publication Series, vol. 26. ISBN 978-3-258-07630-0. Haupt, Berne / Stuttgart / Vienna. 114 pp. and 4 maps. English abstract of the book (600 kB) - Inhalt-Vorwort-Zusammenfassung (600 kB) - Bestellformular / Onlinebestellung (Link zum Haupt-Verlag)
English and French translations of the book are available (Schwick et al. 2012).
--> Korrekturen zu S. 31 und 104 (pdf)
(a.) Review of the book by H. Leser, Basel (in German, in: Die Erde 143/1-2) pdf
(b.) Review of the book by O. Wildi, WSL (in German) pdf
(c.) Review of the book by P. Schneeberger, NZZ (in German) pdf - Gauthier, P., Jaeger, J., Prince, J. (editors) (2009): Montréal at the Crossroads: Superhighways, the Turcot and the Environment. Black Rose Books, Montreal / New York / London, ISBN 978-1-55164-342-7, 192 pp. Bookcover (2.5 MB)
(a.) Introduction: Montréal à la croisée des chemins; and: Introduction: Montreal at the Crossroads. pdf
(b.) Chapter 2: A transit-oriented Vision for the Turcot Interchange: Making Highway Reconstruction Compatible with Sustainability (by P. Brisset & J. Moorman). pdf (1.5 MB)
(c.) Chapter 7: Policy Analysis for the Turcot Interchange Reconstruction (by E. Ghamoushi-Ramandi, J. Moorman, E. Brown & M. von Rudloff). pdf
(d.) Afterword; and: Postface. pdf - Bertiller, R., Schwick, C., Jaeger, J. (2007): Degree of Landscape fragmentation in Switzerland: Quantitative analysis 1885-2002 and implications for traffic planning and regional planning (in German; Landschaftszerschneidung Schweiz: Zerschneidungsanalyse 1885-2002 und Folgerungen für die Verkehrs- und Raumplanung). ASTRA report, Swiss Federal Roads Authority, Bern, 229 pp.
- Jaeger, J. (2002): Landscape fragmentation. A transdisciplinary study according to the concept of environmental threat (in German; Landschaftszerschneidung. Eine transdisziplinäre Studie gemäß dem Konzept der Umweltgefährdung). Verlag Eugen Ulmer, Stuttgart. 447 pp.
- Esswein, H., Jaeger, J., Schwarz-von Raumer, H.-G., and M. Müller (2002): Landscape fragmentation in Baden-Württemberg: quantitative analysis of the current state and of the development over the last 70 years using the method of effective mesh size (in German; Landschaftszerschneidung in Baden-Württemberg. Zerschneidungsanalyse zur aktuellen Situation und zur Entwicklung der letzten 70 Jahre mit der effektiven Maschenweite). - Technical report No. 214, Center of Technology Assessment in Baden-Württemberg. ISBN 3-934629-12-1 / ISSN 0945-9553. Stuttgart. 124 pp.
Research articles in non-reviewed journals and conference proceedings
- Jaeger, J.A.G. (2017): Improving EIA for roads at the landscape-scale. Proceedings of the IAIA 2017 Conference in Montreal, 4-7 April, 2017. International Association for Impact Assessment. PDF online: http://conferences.iaia.org/2017/proceedings.php
- Jaeger, J., Schwick, C., Hennig, E.I., Orlitova, E., Soukup, T., Nazarnia, N., Kienast, F. (2015): Urban sprawl: Landscape ecology, social, and functional perspectives (in German, Zersiedelung aus landschaftsoekologischer, sozialer und siedlungstechnischer Sicht) – Forum für Wissen, WSL Berichte Heft 33, Birmendorf, Switzerland, pp. 15-25. PDF: http://www.wsl.ch/dienstleistungen/publikationen/pdf/15122.pdf
- Soukup, T., Orlitova, E., Kopecky, M., Jaeger, J., Schwick, C., Hennig, E.I., Kienast, F. (2015): Application of a new GIS tool for urban sprawl in Europe. – Forum für Wissen, WSL Berichte Heft 33, Birmensdorf, Switzerland, pp. 57-64. PDF: http://www.wsl.ch/dienstleistungen/publikationen/pdf/15127.pdf
- Jaeger, J.A.G., Soukup, T., Schwick C., Hennig, E.I., Orlitova, E., Kienast, F. (2015): Zersiedelung in Europa: Ländervergleich und treibende Kräfte. In: Meinel, G., Schumacher, U., Behnisch, M., Krüger, T. (Hrsg.): Flächennutzungsmonitoring VII: Boden – Flächenmanagement – Analysen und Szenarien. IOER-Schriften Band 67. Rhombos-Verlag, Berin, pp. 267-277. PDF
- Schwick, C., Jaeger, J., Hersperger, A., Kienast, F. (2013): Strongly accelerated increase in urban sprawl in Switzerland (in German; Stark beschleunigte Zunahme der Zersiedelung in der Schweiz) - Geomatik Schweiz 111(2): 48-53. Link
- Jaeger, J., Bertiller, R., Schwick, C., Kienast, F. (2007): Urban sprawl in Switzerland still increasing: How could a trend reversal be achieved? (in German; Weiterhin steigende Zersiedelung der Schweiz: Wie lässt sich eine Trendwende erreichen?) – Geomatik Schweiz 105(3): 114-117. pdf
- Jaeger, J.A.G. (2007): Effects of the configuration of road networks on landscape connectivity. - In: C.L. Irwin, D. Nelson, K.P. McDermott (eds.): Proceedings of the 2007 International Conference on Ecology and Transportation (ICOET). Center for Transportation and the Environment, North Carolina State University, Raleigh, NC, pp. 267-280. Link
- Jaeger, J., Bertiller, R., Schwick, C. (2007): Progressing dissection and sprawling of the landscapes in Switzerland – inexorable? (in German; Fortschreitende Zerschneidung und Zersiedelung der Landschaften in der Schweiz – unaufhaltsam?) – In: Schweizerische Akademie der Geistes- und Sozialwissenschaften SAGW (Ed.): Wohnen in der Metropole Schweiz. Lässt sich Urbanisierung planen? Eigenverlag, ISBN 978-3-907835-56-2, Bern, pp. 73-88. pdf
- Jaeger, J.A.G., Fahrig, L., Ewald, K. (2006): Does the configuration of road networks influence the degree to which roads affect wildlife populations? - In: C.L. Irwin, P. Garrett, K.P. McDermott (eds.): Proceedings of the 2005 International Conference on Ecology and Transportation (ICOET). Center for Transportation and the Environment, North Carolina State University, Raleigh, NC, pp. 151-163. Link
- Jaeger, J.A.G., Fahrig, L., Haber, W. (2006): Reducing habitat fragmentation by roads: a comparison of measures and scales. Summary of the Organized Oral Session at the INTECOL/ESA 2005 Joint Meeting in Montreal in August 2005. - In: C.L. Irwin, P. Garrett, K.P. McDermott (eds.): Proceedings of the 2005 International Conference on Ecology and Transportation (ICOET). Center for Transportation and the Environment, North Carolina State University, Raleigh, NC, pp. 13-17. Link
- Jaeger, J., Esswein, H., and H.-G. Schwarz-von Raumer (2006): Landscape fragmentation in Baden-Württemberg: Update indicates further strong increase of fragmentation. (in German; Landschaftszerschneidung in Baden-Württemberg: Fortschreibung zeigt weitere starke Zunahme der Zerschneidung an). – In: Zerschnitten, zerstückelt – oder vernetzt? Landschaftszerschneidung contra Lebensraumverbund. – Bad Boller Skripte 3/2006, pp. 17-48.
- Jaeger, J.A.G., and L. Fahrig (2004): Under what conditions do fences reduce the effects of transportation infrastructure on population persistence? – In: IENE Conference 2003 Proceedings. Published by: Infra Eco Network Europe (IENE), Brussels, Belgium, eds.: E. Turcott and H.G.J. Bekker, 19 pp. (CD can be ordered from: IENE, p/a Institute of Nature Conservation, Kliniekstraat 25, B-1070 Brussels, Belgium, http://www.iene.info, info@iene.info).
- Esswein, H., Jaeger, J., and H.-G. Schwarz-von Raumer (2004): Landscape fragmentation in Baden-Württemberg, Bavaria, and Hesse – a comparison of three states in Germany (in German; Landschaftszerschneidung in Baden-Württemberg, Bayern und Hessen – Ein Ländervergleich). – In: Geografische Informationssysteme im Naturschutz und in der Planung. Tagungsdokumentation. Hrsg. v. d. Akademie für Natur- und Umweltschutz Baden-Württemberg beim Ministerium für Umwelt und Verkehr, pp. 49-70.
- Schwarz-von Raumer, H.-G., Esswein, H., and J. Jaeger (2004): GIS-based analyses on landscape fragmentation by transportation networks – The case of Baden-Württemberg. – In: Networks for Mobility: 2nd International Symposium, Sep. 29-Oct 1, 2004, Stuttgart, proceedings. Published by: Centre of Transportation Research University of Stuttgart, Fovus, 7 pp.
- Jaeger, J.A.G. (2004): Effect of roads on landscape connectivity as an assessment criterion for assessments of landscape intrusions (in German; Einfluss von Straßen auf den Landschaftswiderstand (»landscape connectivity«) als Bewertungskriterium für die Eingriffsbewertung). – Nova Acta Leopoldina Supplementum Nr. 19: 98-102.
- Esswein, H., Jaeger, J., Schwarz-von Raumer, H.-G., and M. Müller (2003): Landscape fragmentation in Baden-Württemberg: increasing trend. A state-wide quantitative investigation for the period of 1930 to 1998 (in German; Landschaftszerschneidung in Baden-Württemberg: Tendenz steigend. Eine landesweite quantitative Untersuchung für den Zeitraum 1930 bis 1998). – In: Akademie für Natur- und Umweltschutz beim Ministerium für Umwelt und Verkehr Baden-Württemberg und Stiftung Naturschutzfonds (Ed.): Flächensparende Siedlungsentwicklung – Wie können Kommunen den Naturraumverbrauch verringern? – Beitr. d. Akad. f. Natur- u. Umweltschutz beim Min. f. Umw. u. Verk. B.-Württemb., Bd. 31. Wissenschaftliche Verlagsgesellschaft mbH, Stuttgart, pp. 41-85.
- Esswein, H., Jaeger, J., and H.-G. Schwarz-von Raumer (2003): Using the degree of landscape fragmentation as environmental indicator: number of large un-dissected low-traffic areas (UZR) or effective mesh size (meff)? (in German; Der Grad der Landschaftszerschneidung als Indikator im Naturschutz: unzerschnittene verkehrsarme Räume, UZR, oder effektive Maschenweite, meff?). – In: Naturschutz-Indikatoren/Neue Wege im Vogelschutz. - NNA-Berichte 16(2): 53-68. pdf
- Jaeger, J.A.G., and L. Fahrig (2002): Modeling the effects of road network patterns on population persistence: relative importance of traffic mortality and 'fence effect'. – In: 2001 Proceedings of the International Conference on Ecology and Transportation (ICOET). Published by: The Center for Transportation and the Environment at North Carolina State University, Raleigh, NC (G. Evink et al.), pp. 298-312.
- Schwarz-von Raumer, H.-G., Esswein, H., and J. Jaeger (2002): Landscape fragmentation - new insights for regional development planning through an improved GIS-based temporally and spatially explicit indication system (in German; Landschaftszerschneidung - neue Erkenntnisse für die Landesentwicklung durch eine GIS-gestützte verbesserte raum-zeitliche Indikatorik). – In: J. Strobl, T. Blaschke, and G. Griesebner (Eds.): Angewandte Geographische Informationsverarbeitung XIV. Beiträge zum AGIT-Symposium Salzburg 2002. Wichmann, Heidelberg, pp. 507-512.
- Jaeger, J. (2001): Curtailing landscape fragmentation by applying limiting standards or reference standards (in German; Beschränkung der Landschaftszerschneidung durch die Einführung von Grenz- oder Richtwerten). – Natur und Landschaft 76(1): 26-34. pdf (2.6 MB)
Short communications
- Bolduc, V., Jaeger, J.A.G. (2024): A highly informative and enjoyable introduction to road ecology: "A Clouded Leopard in the Middle of the Road: New Thinking about Roads, People, and Wildlife". Book review. - Project Appraisal and Impact Assessment 42(1): 106-108. https://doi.org/10.1080/14615517.2023.2299605
- Jaeger, J., Mosharafian, S., Pourtaherian, P. (2024): Taming urban sprawl: On the need for targets and limits and the effectiveness of greenbelts. - McGill Journal of Sustainable Development Law (MJSDL) 20(2): 1-6. https://www.mjsdl.com/annualreview/volume20-2
- Jaeger, J., Scheringer, M. (2018): Weshalb ist die Beteiligung von Akteuren nicht konstitutiv für transdisziplinäre Forschung? (Why is stakeholder involvement not essential to transdisciplinary research?) Reaktion auf J. Mittelstrass (2018) und W. Krohn et al. (2017) in GAIA 27(2) and 26(4) - GAIA: Ecological Perspectives for Science and Society 27(4): 345-347. pdf
- Behnisch, M., Jaeger, J.A.G., Krüger, T. (2018): Welche Vorteile bietet die Quantifizierung der Zersiedelung? (What are the advantages of quantifying urban sprawl?) – Nachrichten der Akademie für Raumforschung und Landesplanung ARL 48: 25-30. PDF at https://shop.arl-net.de/nachrichten-arl-1-2018.html
- Jaeger, J.A.G., Nazarnia, N. (2016): Social and ecological impacts of the exponential increase of urban sprawl in Montreal. - Canada Communicable Disease Report 42(10): 207-208. pdf Also in French: Répercussions sociales et écologiques de la croissance exponentielle de l'étalement urbain à Montréal. - Relevé des maladies transmissibles au Canada 42(10): 231-232. pdf
- Jaeger, J., Walz, U. (2016): Editorial: Fracking and urban sprawl: In what sorts of landscapes do we want to live? (in German: Editorial: Fracking und Zersiedelung: In welchen Landschaften wollen wir leben?) - GAIA: Ecological Perspectives for Science and Society 25(1): 73. pdf
- Scheringer, M., Jaeger, J. (2015): Courage for holism: How is it possible to understand nature without dominating nature? On the passing of Hans Primas, 1928-2014. (in German: Mut zur Ganzheit: Wie ist Naturverständnis möglich ohne Naturbeherrschung? Zum Tode von Hans Primas, 1928 bis 2014) - GAIA: Ecological Perspectives for Science and Society 24(1): 7. pdf
- Jaeger, J. (2012): 40 Years of The Limits to Growth. Time for Post-Growth Society. Editorial for the special issue about 40 years of "Limits to Growth". (in German: 40 Jahre "Die Grenzen des Wachstums". Wann kommt die Wende zur Postwachstumsgesellschaft?) - GAIA: Ecological Perspectives for Science and Society 21(2): 81. pdf
- Jaeger, J., Scheringer, M. (2009): From defining concepts of non-knowledge to applying the precautionary principle. A critique of the main article by P. Wehling: Non-knowledge – definitions, distinctions, evaluations (in German). – Erwägen Wissen Ethik (= Deliberation Knowledge Ethics) 20(1): 129-132 (invited critique of a paper by P. Wehling). pdf(1.4 MB)
- Jaeger, J., Pluess, A., Klank, C., Ghazoul, J. (2007): Herausforderungen für Forstwirtschaft und forstliche Forschung. (Challenges for forestry and forest-related research.) - Schweizerische Zeitschrift für Forstwesen (SZF) 158(10): 332-334.
- Ghazoul, J., Jaeger, J. (2007): Risk reduction rather than yield provision. EFI News 1/200 (EFI = European Forest Institute, Joensuu, Finland): 6.
- Jaeger, J., Scheringer, M. (2007): Action-relatedness of environmental science desirable but not relevant? Comment on T. Smieszek, 2006. Uncertainty, value attitudes, and obstacles to action (in German; Handlungsbezug der Umweltforschung wünschenswert, aber nicht relevant? Reaktion auf T. Smieszek. 2006. Unsicherheit, Werthaltungen und Handlungsblockaden) from GAIA 15/4. – GAIA 16(2): 90.
- Jaeger, J., Bertiller, R., Schwick, C. (2006): An environmental indicator of landscape fragmentation in Switzerland: Time series for the monitoring system of sustainable development MONET (in German; Umweltindikator Landschaftszerschneidung in der Schweiz: Zeitreihen zum Monitoring der Nachhaltigen Entwicklung, MONET). – Naturschutz und Landschaftsplanung 38(10-11): 347-350.
- Schwarz-von Raumer, H.-G., Esswein, H., Jaeger, J. (2006): Landscape fragmentation and habitats: using the effective mesh size for the delineation of corridors (in German; Landschaftszerschneidung und Lebensräume: die effektive Maschenweite als Grundlage zur Abgrenzung von Korridoren). – Naturschutz und Landschaftsplanung 38(10): 351-353.
Publications for the general public
- Andrasi, B., Hockings, K., Jaeger, J.A.G., Heinicke, S. (2022): Critically endangered Western Chimpanzees affected by roads up to 17.2 km away. Edited by L. Warungi and R. van der Ree. TransportEcology.info, accessible at: https://transportecology.info/research/chimpanzee-roadeffectzone
- Brunen, B., Jaeger, J.A.G. (2021): What attributes are relevant for water culverts to serve as efficient road crossing structures for mammals? Edited by Clevenger, A. TransportEcology.info, Accessible at https://transportecology.info/research/attributes-for-water-culverts-as-crossing-structures
- Cerqueira, R., Jaeger, J.A.G., Gonçalves da Silva, L. (2021): Potential movement corridors and areas of high predicted road mortality are in different locations for wild cats in Brazil. Edited by F. Teixeira. TransportEcology.info, accessible at: https://transportecology.info/research/potential-corridors-wild-cats-brazil
- Jaeger, J.A.G., (2021): Effects of road fencing on population persistence: Under what conditions will fences be beneficial? Edited by M. Gadd and R. van der Ree. TransportEcology.info, Accessible at: https://transportecology.info/research/road-fencing-population-persistence
- Spanowicz, A.G., Teixeira, F.Z., Jaeger, J.A.G. (2021): Roadkill-hotspot analysis can help save wildlife from getting killed on roads by prioritizing road sections for fencing. Edited by Cooke, S. TransportEcology.info, Accessed at https://transportecology.info/research/roadkill-hotspot-analysis-can-help-save-wildlife
- Spanowicz, A.G., Jaeger, J.A.G., Teixeira, F.Z. (2020): How to prioritize road sections for fencing to reduce animal mortality. Current Conservation 14.4: 23-25. (PDF: https://www.currentconservation.org/wp-content/uploads/2021/02/WEB-14.4-3RD-FEB.pdf)
- Jaeger, J.A.G., Spanowicz, A.G., Teixeira, F.Z. (2020): Wildlife can be saved from becoming roadkill with a new tool that finds the best locations for fences. The Conversation, November 8, 2020, https://theconversation.com/wildlife-can-be-saved-from-becoming-roadkill-with-a-new-tool-that-finds-the-best-locations-for-fences-147153 -- Also in French: Des millions d’animaux se font tuer sur les routes. Voici comment stopper l’hécatombe. La Conversation, 13 novembre, https://theconversation.com/des-millions-danimaux-se-font-tuer-sur-les-routes-voici-comment-stopper-lhecatombe-149617
- Jaeger, J.A.G., Spanowicz, A.G., Bowman, J., Clevenger, A.P. (2019): Efficacité des passages fauniques pour les petits et moyens mammifères. – Progrès forestier : Le magazine du milieu forestier 229 (été 2019): 20-24. - Also available in English: Effectiveness of wildlife passages for small and medium-sized mammals.
- Jaeger, J.A.G., Nazarnia, N. (2018): La croissance exponentielle de l'étalement urbain à Montréal requiert des actions vigoureuses. - Revue québécoise d'urbanisme 38(2): 19-21.
- Jaeger, J., Walz, U. (2015): Die verfrackte Landschaft (in German; Fracked landscapes). - DIE ZEIT ONLINE of April 22nd 2015 (most respected weekly newspaper in Germany). Online here.
- Walz, U., Jaeger, J. (2015): Fracking - Gefahr für die Landschaft. (in German; Fracking - danger for landscapes). – News of the Leibniz-Gemeinschaft, April 27th 2015 (network of scientific research institutes in Germany). Online here.
- Schwick, C., Jaeger, J.A.G., Kienast, F. (2011): Mesurer et éviter l'étalement urbain. – Notice pour le praticien 47. Institut fédéral de recherches WSL, Birmensdorf, Suisse. 12 pp. pdf-francais pdf-deutsch
- Schwick, C., Jaeger, J., Bertiller, R., Kienast, F. (2010): Urban Sprawl in Switzerland – unstoppable? Quantitative Analysis 1935 to 2002 and Implications for Regional Planning. (in German: Quantitative Analyse 1935 bis 2002 und Folgerungen für die Raumplanung.) Bristol Publication Series, vol. 26. ISBN 978-3-258-07630-0. Haupt, Berne / Stuttgart / Vienna. 114 pp. and 4 maps. English abstract of the book (600 kB) - Inhalt-Vorwort-Zusammenfassung (600 kB) - Bestellformular / Onlinebestellung (Link zum Haupt-Verlag)
English and French translations of the book are available (Schwick et al. 2012).
--> Korrekturen zu S. 31 und 104 (pdf)
(a.) Review of the book by H. Leser, Basel (in German, in: Die Erde 143/1-2) pdf
(b.) Review of the book by O. Wildi, WSL (in German) pdf
(c.) Review of the book by P. Schneeberger, NZZ (in German) pdf - Gauthier, P., Jaeger, J., Prince, J. (editors) (2009): Montréal at the Crossroads: Superhighways, the Turcot and the Environment. Black Rose Books, Montreal / New York / London, ISBN 978-1-55164-342-7, 192 pp. Bookcover (2.5 MB)
(a.) Introduction: Montréal à la croisée des chemins; and: Introduction: Montreal at the Crossroads. pdf
(b.) Chapter 2: A transit-oriented Vision for the Turcot Interchange: Making Highway Reconstruction Compatible with Sustainability (by P. Brisset & J. Moorman). pdf (1.5 MB)
(c.) Chapter 7: Policy Analysis for the Turcot Interchange Reconstruction (by E. Ghamoushi-Ramandi, J. Moorman, E. Brown & M. von Rudloff). pdf
(d.) Afterword; and: Postface. pdf - Jaeger, J., Bertiller, R., Schwick, C. (2007): Degree of landscape fragmentation in Switzerland: Quantitative analysis 1885-2002 and implications for traffic planning and regional planning. / Morcellement du paysage en Suisse: Analyse du morcellement 1885-2002 et implications pour la planification du trafic et l'aménagement du territorire. / Landschaftszerschneidung Schweiz: Zerschneidungsanalyse 1885-2002 und Folgerungen für die Verkehrs- und Raumplanung. Neuchâtel, Switzerland, 36 pp. Order numbers: 866-0200 (German pdf (1.6 MB)), 868-0200 (English pdf (1.6 MB)), 867-0200 (French pdf (1.6 MB)).
- Bertiller, R., Jaeger, J., Schwick, C., Lienhard, A. (2007): Zürcher Landschaften sind stark zerschnitten - Tendenz weiter steigend. - Zürcher UmweltPraxis (ZUP) Nr. 50: 35-40. pdf
- Jaeger, J., Bertiller, R., Schwick, C., Kienast, F., Bachmann, P. (2007): Urban sprawling of landscapes (in German; Die Zersiedelung der Landschaft). – GeoAgenda 14(2): 4-8.
- Jaeger, J., Bertiller, R., Schwick, C., Kienast, F. (2007): How can urban sprawling of landscapes be contained? (in German; Wie lässt sich die Zersiedelung der Landschaft eindämmen?) – Newsletter NFP 54: Nachhaltige Siedlungs- und Infrastrukturentwicklung. Ausgabe 1 (Februar 2007): 3-4.
- Jaeger, J. (2006): First update demonstrates: Landscape fragmentation in Baden-Württemberg continued to increase strongly (in German; Erste Fortschreibung zeigt: Landschaftszerschneidung in Baden-Württemberg weiter stark angestiegen). – ÖKOJAGD–Magazin des Ökologischen Jagdverbandes. Issue August 2006: 19-21.
- Kranz, B., Jaeger, J., and H. Esswein (2002): Dissection of landscapes in Baden-Württemberg. Revised edition including time series 1930-1998 (in German; Flächenzerschneidung in Baden-Württemberg. Neuauflage mit Zeitreihen 1930-1998). Center for Technology Assessment in Baden-Württemberg. Stuttgart, 20 pp., including a map. pdf (2.5 MB)
Presentations
Conferences
- Jaeger, J.A.G., Madrinan, L.F., Soukup, T., Schwick, C., Schwarz-von Raumer, H.-G., Kienast, F. (2010): “Monitoring landscape fragmentation in Europe: How well can socio-economic variables explain the differences between regions?” – Accepted for oral presentation at the 2010 International Conference on Ecology and Transportation by Infra-Eco Network Europe (IENE) in Velence, Hungary, 27.09.-01.10.2010.
- Grosman, P., Jaeger, J.A.G., Biron, P.M., Dussault, C., Ouellet, J.-P. (2010): “Simulating the removal of raodside salt pools to reduce moose-vehicle collisions using an agent-based model.” – Oral presentation at the Northeastern Transportation and Wildlife Conference in Amherst, Mass., 12.-15.09.2010.
- Jaeger, J.A.G. (2010): “Is Road Bundling Beneficial? Modeling the Consequences of Road Network Configuration for Wildlife Populations.” – Invited speaker at the Special Symposium "Impact of Roads" at the Joint Meeting of Ichthyologists and Herpetologists (JMIH) in Rhode Island, Providence, 07.-12.07.2010.
- Jaeger, J.A.G. (2010): “Road avoidance behavior, traffic volumes, and road network configuration: How do they affect extinction thresholds?” – Invited speaker at the organized oral session "Beyond the Pavement: Road Network Structure, Use and Ecological Responses in Backcountry Environments" at the 95th Ecological Society of America (ESA) Anual Meeting in Pittsburgh, Pennsylvania, 01.-06.08.2010.
- Jaeger, J.A.G., Schwick, C., Bertiller, R. (2010): “Tracking landscape fragmentation over 120 years as an indicator for the Swiss Monitoring System of Sustainable Development (MONET): How do protected areas differ?” – Poster presentation at the annual meeting of the Canadian Society for Ecology and Evolution (CSEE) in Québec City on 9-12 May, 2010.
- Madrinan, L.F., Jaeger, J.A.G., Soukup, T., Schwick, C., Kienast, F. (2010): “Implementing landscape fragmentation as an environmental indicator on the European level to influence land use policies.” – Oral presentation at the annual meeting of the Canadian Society for Ecology and Evolution (CSEE) in Québec City, 09.-12.05.2010.
- Madrinan, L.F., Jaeger, J.A.G., Soukup, T., Schwick, C., Schwarz-von Raumer, H.-G., Kienast, F. (2010): “How well do socio-economic factors explain landscape fragmentation in western Europe?” – Oral presentation at the annual Landscape Ecology (IALE-US) meeting in Athens, USA, 03.-06.04.2010.
- Jaeger, J., Schwick, C., Bertiller, R. (2009): “Urban sprawl in Switzerland: from measurement to assessment” – Oral presentation at the Annual Meeting of the Canadian Association of Geographers (CAG) in Ottawa, Canada, 26.-30.05.2009.
- Grosman, P.D., Jaeger, J.A.G., Biron, P.M., Dussault, C., Ouellet, J.-P. (2009): “Assessing mitigation measures to reduce moose-vehicle ollisions: a modeling approach” – Poster presentation at the International Conference on Ecology & Transportation (ICOET). Duluth, Minnesota, USA, 13.-17.09.2009.
- Jaeger, J. (2009): “Effects of road networks on the persistence of wildlife populations: Does configuration matter?” – Oral presentation at the Annual Conference of the Canadian Society for Ecology and Evolution (CSEE) in Halifax, Canada, 14.-17.05.2009.
- Jaeger, J. (2009): “Can a change in the configuration of road networks moderate the impact that roads have on wildlife populations?” – Oral presentation at the Conference of the International Society for Ecological Modelling (ISEM) in Quebec City, Canada, 06.-09.10.2009.
- Jaeger, J. (2009): “Comment le comportement des animaux aux routes modifie l`impact que les réseaux routiers ont sur les populations fauniques ?” – Oral presentation at the 34th annual conference of the Société Québécoise pour l`Étude Biologique du Comportement (SQEBC) in Trois-Rivières, QC, Canada, 13.-15.11.2009.
- Jaeger, J., Schwick, C., Bertiller, R., Kienast, F. (2008): “Relationships between landscape fragmentation and urban sprawl” – Oral presentation at the Annual Meeting of the American Association of Geographers (AAG) in Boston, Massachusetts, U.S.A., 15.-19.04.2008.
- Jaeger, J. (2008): “The Rauischholzhausen agenda for road ecology and implications for eastern North America” – Oral presentation at the Ontario Road Ecology Stewardship Symposium & Habitat Connectivity Workshop in Toronto, Canada, 23.-24.04.2008 (invited keynote speaker).
- Jaeger, J., Schwick, C., Bertiller, R. (2008): “Urban permeation of landscapes: a new measure of urban sprawl” – Oral presentation at the Annual Meeting of the Canadian Association of Geographers (CAG) in Québec City, Canada, 20.-24.05.2008.
- Grosman, P., Jaeger, J.A.G., Biron, P.M., Dussault, C. and Ouellet, J.-P. (2008): “Reducing moose-vehicle collisions through salt pool removal and displacement: an agent-based modeling approach”. Northeast Transportation and Wildlife Conference, Meredith, New Hampshire, September 21-24, 2008.
- Jaeger, J. (2008): “Using measures of landscape fragmentation for cumulative effects assessment“ - International Association for Impact Assessment (IAIA) - Special Topic Meeting on Cumulative Environmental Effects, Calgary, Canada, November 6-9, 2008.
- Jaeger, J. (2007): “Measuring landscape connectivity by incorporating variable barrier strengths of transportation infrastructure into the effective mesh size” – Oral presentation at the annual meeting of the International Association of Landscape Ecology, US chapter (US-IALE), in Tucson, Arizona, U.S.A., 09.-13.04.2007.
- Jaeger, J. (2007): “Effects of the configuration of road networks on landscape connectivity” – Oral presentation at the International Conference on Ecology and Transportation (ICOET) in Little Rock, Arkansas, U.S.A., 20.-25.05.2007.
- Jaeger, J. (2007): “How does the configuration of road networks influence the degree to which wildlife populations are affected by roads?” – Oral presentation at the World IALE meeting (International Association of Landscape Ecology) in Wageningen, the Netherlands, 08.-12.07.2007 (co-organizer of a symposium on road ecology).
- Jaeger, J.: “Measuring landscape fragmentation and connectivity using effective mesh size meff and effective mesh density seff” – Oral presentation at the workshop “Ecological connectivity and ecosystem assessment” organized by the European Environment Agency in Copenhagen, Denmark, 24.-25.10.2007 (invited speaker).
- Jaeger, J. (2006): “Increasing fragmentation of habitats in Baden-Wuerttemberg: Can the conflicts be defused?“ – Oral presentation at the Annual Meeting of the Ecological Hunting Association Baden-Wuerttemberg in Weingarten, Germany, 22.04.2006 (invited key note speaker).
- Jaeger, J. (2006): “Introduction of the new measure Urban Permeation and Degree of Dispersion for measuring urban sprawl” – Oral presentation at the Workshop on methods for measuring urban sprawl at the ETH Zurich, 11.05.2006 (organizer and speaker).
- Jaeger, J. (2006): “Including differing barrier strengths in measuring the degree of landscape fragmentation” – Oral presentation at the annual meeting of the International Association for Landscape Ecology German-speaking countries (IALE-D) in Kiel, Germany 27.-30.09.2006.
- Jaeger, J., Moser, B., Tappeiner, U. (2006): “The cross-boundary connections procedure for calculating effective mesh size (meff) - solution of the boundary problem in measuring the degree of landscape fragmentation” – Oral presentation at the annual meeting of the International Association of Landscape Ecology - German-speaking countries (IALE-D) in Kiel, Germany 27.-30.09.2006.
- Jaeger, J. (2006): “Comparison of methods for measuring the degree of landscape fragmentation” – Oral presentation at the conference “Traffic Infrastructure and Biodiversity” at the Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland, 09.11.2006 (invited speaker).
- Jaeger, J. (2006): “Measuring Landscape Fragmentation in Switzerland for Monitoring Sustainable Development” – Oral presentation at the meeting of the European Environmental Agency in Zagreb, Kroatia, 25.10.2006 (invited speaker).
- Jaeger, J., Bertiller, R., Schwick, C. (2006): “Increasing dissection and sprawling of landscapes in Switzerland – unstoppable?” – Oral presentation at the meeting of the Schweizerische Akademie der Geistes- und Sozialwissenschaften (SAGW) in Bern, Switzerland, 10.11.2006 (invited speaker).
- Jaeger, J., Bertiller, R., Schwarz-von Raumer, H-G., Esswein, H. (2005): “Increase of landscape fragmentation in Europe: Are the ecological effects visible, or can they be made visible?” – Oral presentation at the conference “Our shared landscape (OSL) – Integrating Ecological, Socio-Economic, and Aesthetic Aspects in Landscape Planning and Management“ in Ascona, Switzerland, 2.-6.05.2005.
- Jaeger, J., Fahrig, L. (2005): “Effects of bundling of roads on population persistence”. – Oral presentation and organizer of the session “Reducing habitat fragmentation by roads: A comparison of measures and scales” at the combined IX INTECOL / 90th ESA (International Congress of Ecology / Ecological Society of America Annual Meeting) in Montreal, Canada, 7.-12.8.2005.
- Jaeger, J., Fahrig, L. (2005): “Does the configuration of road networks influence the degree to which roads affect wildlife populations?” – Oral presentation at the International Conference of Ecology and Transportation (ICOET) in San Diego, CA, U.S.A., 29.8.-2.9.2005.
- Jaeger, J. (2005): “A hierarchy of mitigation measures to reduce road effects on animal populations”. – Oral presentation at the World Conference on Ecological Restoration, Zaragoza, Spain, 12.-18.09.2005 (invited speaker).
- Moser, B., Jaeger, J., Tasser, E., Eiselt, B., Tappeiner, U. (2005): “Landscape dissection in South Tyrol (Italy): a new method to deal with the boundaries of sample units in measuring the degree of landscape dissection“ – Poster presentation at the IALE-D annual meeting (International Association of Landscape Ecology – German-speaking countries), Freiburg i. Breisgau, 10.-12.10.2005.
- Jaeger, J. (2005): “Landscape fragmentation in Baden-Württemberg“. – Oral presentation at the 6. Naturschutz-Kolloquium, titled “Zerschnitten, zerstückelt – oder vernetzt? Landschaftszerschneidung versus Lebensraumverbund“, organized by the Landesnaturschutzverband Baden-Württemberg e.V., Stuttgart, Haus der Wirtschaft, 22.10.2005 (invited talk and panel discussion with the Minister of Agriculture and Nature Protection Peter Hauk and scientists).
- Jaeger, J. (2005): “Modelling the effects of measures intended to reduce road impacts.“ – Oral presentation at the international workshop “Landscape-scale effects of roads on biodiversity” in Giessen (Germany), Schloss Rauischholzhausen, 2.-3.11.2005 (co-organizer and speaker).
- Jaeger, J. (2005): “Effective mesh size: what are the objectives, options, and limits?“ – Oral presentation at the national workshop “De-fragmentation: methods, models, legislation” on the Isle of Vilm (Germany), organized by the German Federal Office for Nature Protection, 15.-18.11.2005 (invited speaker).
- Jaeger, J., H. Esswein, H.-G. Schwarz-von Raumer (2004): "The method of ‚effective mesh size’ meff – basis for an indicator in the environmental reporting of Baden-Württemberg". – Talk at the expert meeting “Indicator Landscape Fragmentation“ of the German Länderinitiative for a common set of core indicators (LIKI), Karlsruhe, 30.03.2004 (invited talk).
- Jaeger, J. (2004): "Measuring landscape fragmentation and connectedness using the effective mesh size, meff”. – Talk at the “Expert meeting on landscape connectivity and fragmentation” of the European Environmental Agency in Barcelona, 3.-4. June 2004 (invited talk).
- Schwarz-von Raumer, H.-G., H. Esswein, J. Jaeger (2004): “GIS-based analyses on landscape fragmentation by transportation networks - The case of Baden-Württemberg“. – Talk at the 2nd International Symposium “Networks for Mobility“ in Stuttgart, 29.9.-01.10.2004.
- Jaeger, J. (2004): "Effects of the traffic network on landscape connectivity and the persistence probability of animal populations". – Talk at the Leopoldina-Meeting “Results of the Leopoldina-Program IV“ of the German Academy of Natural Scientists Leopoldina, 14.-15.10.2004 (invited talk).
- Jaeger, J. (2003): "Effects of roads on population persistence: When are fences an effective mitigation measure?" – Oral presentation at the International Association of Landscape Ecology - United States Regional Association (US-IALE) in Banff, Canada, 02.-06.04.2003.
- Jaeger, J. (2003): "Effects of roads and fences on population persistence: when does fencing enhance survival probability?" – Talk at the Annual Meeting of the German Ecological Society (GfÖ) in Halle/Saale, 8.-12.09.2003.
- Jaeger, J. (2003): "Under what conditions do fences reduce the effects of transportation infrastructure on population persistence?" – Oral presentation at the conference of the COST 341/Infra Eco Network Europe (IENE) in Brussels, 13.-15.11.2003.
- Esswein, H., Schwarz-von Raumer, H.-G., Jaeger, J. (2003): “Landschaftszerschneidung in Baden-Württemberg – Zeitliche Entwicklung und räumliche Differenzierung mit der effektiven Maschenweite“. – Oral presentation at the Annual Meeting of IALE-D (International Association of Landscape Ecology – German Regional Association), Eberswalde, 30.10.-01.11.2003.
- Schwarz-von Raumer, H.-G., Esswein, H., Jaeger, J. (2002): “Landschaftszerschneidung: neue Erkenntnisse für die Landesentwicklung durch eine GIS-gestützt verbesserte raum-zeitliche Indikatorik”. – Oral presentation at the AGIT conference (“Angewandte Geographische Informationsverarbeitung”) in Salzburg, Austria, July 2002.
- Jaeger, J., Fahrig, L. (2002): “Road mortality and 'fence effect’: which one is more harmful to population persistence?” – Oral presentation at the OEEC ("Ontario Ecology & Ethology Colloquium”) an der Queen’s University in Kingston, Ontario, Canada, am 21.-23.4.2002.
Seminars
- Jaeger, J. (2010): “La fragmentation du paysage : mesures, enjeux et limites.” - Presentation at CARTEL/Département de géomatique appliquée à l'Université de Sherbrooke, 16 April 2010 (invited talk).
- Jaeger, J. (2010): “Landscape fragmentation and urban sprawl make sustainability increasingly difficult to achieve.” - Presentation at the Green Week and Sustainability Mash-up Lecture Series at Concordia University, Montréal, QC, 2 Feb. 2010 (invited talk).
- Jaeger, J. (2010): “Assessing Impacts: The Turcot Interchange and Alternatives for the Future.” - Presention at the 2010 Annual Workshop "Changing cities, changing institutions" of the Community-University Research Alliance (CURA) "Making Megaprojects Work for Coummunities" (McGill University & Concordia University) in Montréal, 18 March 2010 (invited talk).
- Jaeger, J. (2009): “Assessing landscape fragmentation and urban sprawl: Where are the limits to landscape change?” and “Workshop about some methods to measure landscape fragmentation”. - Workshop and presentation at the Ecology and Evolution Seminar Series at Trent University, Peterborough, ON, on 20. Nov. 2009 (invited talk).
- Jaeger, J. (2009): “Landscape Ecology and Environmental Impact Assessment” - Presentation at the workshop on landscape-scale effects of anthropogenic disturbances on ungulates (organized by Dr. M.-H. St-Laurent) at the Université du Québec à Rimouski (UQAR), 06. Nov. 2009 (invited talk).
- Jaeger, J. (2008): “La largeur effective de maille (meff): un indice de fragmentation de l’habitat utile pour évaluer l’effet d’un réseau routier sur le caribou.” Joined meeting of the Ministère des Transport du Québec and the Ministère des Ressources Naturelles et de la Faune du Québec, Québec City, Canada, October 29, 2008 (invited talk).
- Schwick, C., Jaeger, J., Bertiller, R., Kienast, F. (2008): “Urban sprawl in Switzerland 1935-2002.” Workshop of the Swiss National Science Foundation, National Research Programme 54 “Sustainability of the Built Environment“, Berne, Switzerland, September 17, 2008.
- Jaeger, J. (2008): “Implementing landscape fragmentation as an indicator in the Swiss Monitoring System of Sustainable Development (MONET) using the effective mesh size (meff) method.” Presentation at the Ministère du Developpement Durable, de l’Environnement et des Parc du Québec, Québec City, Canada, August 28, 2008 (invited talk).
- Jaeger, J. (2008): “Detecting the Effects of Roads on Wildlife: The Rauischholzhausen Agenda for Road Ecology.” Behavioral Ecology Brown Bag Seminar (BEBB), Concordia University, Department of Biology, Loyola Campus, March 19, 2008 (invited talk).
- Jaeger, J. (2008): “How are patterns of urban sprawl and landscape?fragmentation related? A case study from Switzerland.” Croques complexes, Dept. of Geography, Université de Montréal, April 10, 2008 (invited talk).
- Jaeger, J. (2007): “Landscape dissection and migrations of wildlife – or: at the end there is the motorway?” – Seminar at the Fachhochschule Rottenburg (University of Applied Sciences), Germany, 11.01.2007 (invited talk).
- Jaeger, J. (2007): “Impacts of roads on wildlife: can the conflicts be reconciled?” – Research seminar at the Universita Degli Studi di Milano-Bicocca, Milano, Italy, 24.01.2007 (invited talk).
- Jaeger, J., Scheringer, M. (2007): “Environmental research on the test stand: What is lacking for making better progress with solving environmental problems?” – Research seminar at the Institute of Geoecology at the Braunschweig Technical University, Germany, 08.02.2007 (invited talk).
- Jaeger, J. (2007): “Reduced landscape connectivity caused by roads and traffic”. – Seminar at the University of California at Davis, CA, U.S.A., 15.05.2007 (invited talk).
- Jaeger, J. (2006): “Fragmentation of wildlife habitats by transportation networks: How far is the trend reversal?” – Research seminar at the Goethe-University of Frankfurt/Main, Germany, 31.01.2006 (invited talk).
- Jaeger, J. (2006): “A Tightening Noose: Wildlife Populations Caught in Road Networks with Decreasing Mesh Size” – Research seminar at the Road Ecology Center at the University of California at Davis, California, U.S.A., 21.03.2006 (invited talk).
- Jaeger, J. (2006): “Effects of roads on wildlife populations: What is the influence of road network configuration?” – Research seminar at the University of Basel, Switzerland, NLU-Kolloquium, 24.04.2006 (invited talk).
- Jaeger, J., Bertiller, R., Schwick, C. (2006): “Landscape fragmentation in Switzerland: Quantitative analysis 1890-2002 and implications for traffic planning and regional planning” – Oral presentation at the Swiss Federal Statistical Office (BFS) in Neuchâtel, Switzerland, 26.04.2006 (invited talk).
- Jaeger, J. (2006): “Measuring the degree of landscape fragmentation in Switzerland for the Swiss Monitoring System of Sustainable Development MONET” – Research seminar at the Institute for Terrestrial Ecosystems (Ecology & Ecosystem Management Seminar Series) at the ETH Zurich, Switzerland, 29.06.2006 (invited talk).
- Jaeger, J., Scheringer, M. (2006): “Why does environmental research not contribute more substantially to environmental problem solving?” – Research seminar at the Center for Interdisciplinary Studies in Technology (ZIT) at the Darmstadt University of Technology, Germany, 05.07.2006 (invited talk).
- Jaeger, J. (2005): “Effects of roads and fences on population persistence: are there thresholds?“ – Research seminar at the Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland, 26.01.2005 (invited talk).
- Jaeger, J. (2005): “Roads and wildlife: Can the conflicts be reconciled?” – Research seminar at the University of Toronto, Canada, 22.03.2005 (invited talk).
- Jaeger, J. (2005): “Landscape fragmentation due to transportation infrastructure: How to measure, asses, and curtail it?“ – Research seminar at the ETH Zurich, Switzerland, Institute for Human-Environment Systems (HES)/Natural and Social Science Interface (NSSI), 14.06.2005 (invited talk).
- Jaeger, J. (2005): “Traffic networks and wildlife habitats: Can the conflicts be defused?” – Research seminar at the Technical University of Dresden, Germany, 24.11.2005 (invited talk).
- Jaeger, J. (2003): “Using the degree of landscape fragmentation as environmental indicator: average size of non-fragmented land parcels (AS) or effective mesh size (meff)?“. – Talk presented at the European Environmental Agency, Environmental Topic Centre Terrestrial Environment (ETC TE), Barcelona, 11.08.2003 (invited talk).
- Jaeger, J. (2003): “How can landscape fragmentation be measured and assessed?” – Talk presented at the ETH Zurich, Zurich/Switzerland, in the research seminar series for Nature and Landscape Protection, 6.11.2003 (invited talk).
- Jaeger, J. (2003): “Preconditions for a trend reversal in landscape fragmentation – Science and practice in a dialogue”. – Talk presented at the Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland, 17.11.2003 (invited talk).
- Jaeger, J. (2003): “How to measure and assess landscape fragmentation?" – Talk at the University of Giessen, Germany, 04.12.2003 (invited talk).
- Jaeger, J., Fahrig, L. (2002): “Effects of roads and traffic on population persistence: predicting the relative importance of traffic mortality and 'fence effect’”. – Talk presented at Parks Canada, Banff, Alberta, Canada, 04.07.2002 (invited talk).
More information
2. Leaflet on the topic of landscape fragmentation and the effective mesh size, English pdf, German pdf, French pdf.
3. Miniposter of a project on landscape fragmentation in Europe: about our ongoing project on landscape fragmentation in the European continent (pdf Poster English).
4. Miniposter of a project on landscape fragmentation in Switzerland: about our project on landscape fragmentation in Switzerland (completed) (pdf Poster English, pdf Poster German).
5. Miniposter of a project on urban sprawl in Switzerland: about our ongoing project on urban sprawl in Switzerland. (pdf Poster English, pdf Poster German) link to the project within Switzerland's National Research Programme 54
6. Road effects model for predicting when animal populations are at risk from roads: an interactive model of road avoidance behaviour
- Click here to start the model -
Roads and traffic affect animal populations detrimentally in four ways: they decrease habitat amount and quality, enhance mortality due to collisions with vehicles, prevent access to resources on the other side of the road, and subdivide animal populations into smaller and more vulnerable fractions. Roads will affect persistence of animal populations differently depending on (1) road avoidance behavior of the animals (i.e., noise avoidance, road surface avoidance, and car avoidance); (2) population sensitivity to the four road effects; (3) road size; and (4) traffic volume. We have created a model based on these population and road characteristics to study the questions: (1) what types of road avoidance behaviors make populations more vulnerable to roads?; (2) what types of roads have the greatest impact on population persistence?; and (3) how much does the impact of roads vary with the relative population sensitivity to the four road effects?
Our results suggest that, in general, the most vulnerable populations are those with high noise and high road surface avoidance, and secondly, those with high noise avoidance only. Conversely, the least vulnerable populations are those with high car avoidance only, and secondly, high road surface and high car avoidance. Populations with low overall road avoidance and those with high overall road avoidance tend to respond in opposite ways when the sensitivity to the four road effects is varied. The same is true of populations with high road surface avoidance when compared to those with high car and high noise avoidance. The model further predicted that traffic volume has a larger effect than road size on the impact of roads on population persistence. One potential application of our model is to generate predictions for more structured field studies of road avoidance behavior and its influence on persistence of wildlife populations.
Published in Jaeger et al. (2005), Ecological Modelling 85: 329–348 pdf.
7. Webpage on the effects of landscape fragmentation
Effects of transportation infrastructure and urban development on landscapes in general and on wildlife populations in particular (among other, additional information): www.fragmentation.de
8. What are the objectives of environmental science?
Dr. Martin Scheringer and I want to start a critical discussion of this question. Therefore, we investigate the kinds of research questions asked by environmental scientists. To do this, we are taking a closer look at four questions:
- What is the lack of knowledge to be addressed by the research?
- What is the purpose of the results?
- What are the subjects the research is dealing with?
- What are the methods chosen for the investigation?
The reason is that in the treatment of environmental problems, there is often a discrepancy between the needs of dicision makers and the results provided by scientific research (what we call the “datadilemma”). To explore how this discrepancy could be reduced, we make a distinction between knowledge-oriented and decision-oriented reduction of complexity. The challenge that today's environmental research is facing is that decision-oriented reduction of complexity should be incorporated in the selection of scientific problems. We use the guiding principle of “reflexive environmental research” and point out how it differs from the guiding principles of “classical scientific research”. Its key elements are: reflection of guiding ideas external to science (e.g., sustainability); addressing explicitly the uncertainty and openness of scientific results and forecasts (including unknown unknowns); transdisciplinarity; the aim of contributing to the solution of complex and controversial real-world problems; adherence to relevant scientific standards.
You find more information and you are invited to contribute to the discussion here: www.env-science.ethz.ch
9. Other Links
- to the Geomatics and Landscape Ecology Research Laboratory GLEL at Carleton University: www.glel.carleton.ca