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Staff photo Sebastian Diehl

Sebastian Diehl

Professor of ecology who develops mathematical models for describing and understanding the dynamics of aquatic ecosystems

Works at

Affiliation
Location
KB. H3, Linnaeus väg 6, Umeå, A3-20-21 Umeå universitet, 901 87 Umeå

My research and teaching use mathematical modeling as a tool for describing and understanding the dynamics of aquatic ecosystems. My administrative responsibilities include being final examiner for the PhD education at my department, chair of the steering board of Umeå Marince Science Centre (UMSC), and member of the steering group of the Integrated Science Lab (IceLab).

I am interested in how environmental factors and the presence/absence of certain organisms drive and constrain consumer-resource interactions and the resulting ecosystem dynamics. The studied environmental factors include nutrient and light supply, turbulent mixing, and water temperature in lakes, as well as physical transport processes and disturbances in streams. Study organisms include planktonic and benthic algae, bacteria, protists, planktonic microinvertebrates, benthic macroinvertebrates, fish, and water birds.

Dynamic systems behave often in unexpected ways. Where possible, I therefore translate assumptions into mathematical models from which I derive expectations. Assumptions and predictions of these models are then tested and refined in an iterative process involving field and laboratory experiments and, to a lesser extent, comparative field studies.

Much of my research is performed in the project "Climate induced regime shifts in northern lake ecosystems" ("Changing Lakes") in which a large group of researchers studies how increased water temperature and increased terrestrial inputs of nutrients and organic carbon (humic matter) affect primary and fish production and exchange of greenhouse gases with the atmosphere. One goal of the project is the development of a mathematical ecosystem model that can predict future fish production and greenhouse gas exchange in different types of northern lakes.

I hold an undergraduate degree in biology from the University of Göttingen (Germany) and a PhD in animal ecology from Umeå University (1994). I did postdoctoral studies at the University of California at Santa Barabara (1994-1996) and was professor of aquatic ecology at Ludwig-Maximilians-Universität in Munich (1996-2009) before I moved back to Umeå.

Research areas
Mathematical ecology
Freshwater ecology

2019
Limnology and Oceanography, Association for the Science of Limnology and Oceanography 2019, Vol. 64, (3) : 1186-1199
Maier, Dominique B.; Diehl, Sebastian; Bigler, Christian
2019
Global Change Biology, John Wiley & Sons 2019, Vol. 25 : 504-521
Vasconcelos, Francisco Rivera; Diehl, Sebastian; Rodríguez, Patricia; et al.
2019
Ecology Letters
Wickman, Jonas; Diehl, Sebastian; Brännström, Åke
2018
Freshwater Biology, John Wiley & Sons 2018, Vol. 63, (7) : 662-675
Diehl, Sebastian; Thomsson, Gustaf; Kahlert, Maria; et al.
2018
Ecosystems (New York. Print), Springer 2018, Vol. 21, (6) : 1255-1268
Vasconcelos, Rivera Francisco; Diehl, Sebastian; Rodríguez, Patricia; et al.
2017
Ecology Letters, Vol. 20, (4) : 513-523
Uszko, Wojciech; Diehl, Sebastian; Englund, Göran; et al.
2017
American Naturalist, UNIV CHICAGO PRESS 2017, Vol. 189, (4) : 381-395
Wickman, Jonas; Diehl, Sebastian; Blasius, Bernd; et al.
2016
Ecology Letters, Vol. 19, (4) : 487-494
Henriksson, Anna; Wardle A., David; Trygg, Johan; et al.
2016
Ecology, Vol. 97, (10) : 2580-2592
Vasconcelos, Francisco Rivera; Diehl, Sebastian; Rodriguez, Patricia; et al.
2015
Ecology Letters, Vol. 18, (6) : 553-562
Declerck, Steven A. J.; Malo, Andrea R.; Diehl, Sebastian; et al.
2015
ICES Journal of Marine Science, Vol. 72, (6) : 2051-2060
Diehl, Sebastian; Berger, Stella A.; Soissons, Quentin; et al.
2015
Ecology, John Wiley & Sons 2015, Vol. 96, (12) : 3243-3256
Uszko, Wojciech; Diehl, Sebastian; Pitsch, Nadine; et al.
2015
Limnology and Oceanography, Vol. 60, (2) : 641-656
Wollrab, Sabine; Diehl, Sebastian
2014
Freshwater Biology, Vol. 59, (10) : 2204-2220
Berger, Stella A.; Diehl, Sebastian; Stibor, Herwig; et al.
2014
Ecological Monographs, Vol. 84, (2) : 287-302
Jäger, Christoph G.; Diehl, Sebastian
2013
Ecology, Ecological Society of America 2013, Vol. 94, (12) : 2886-2897
Wollrab, Sabine; de Roos, Andre M.; Diehl, Sebastian
2012
Ecology and Evolution, Vol. 2, (12) : 3110-3122
Behl, Stephan; de Schryver, Vera; Diehl, Sebastian; et al.
2012
Marine Biology, Vol. 159, (11) : 2431-2440
Sebastian, Patrizia; Stibor, Herwig; Berger, Stella; et al.
2012
Marine Biology, Vol. 159, (11) : 2491-2501
Winder, Monika; Berger, Stella A; Lewandowska, Aleksandra; et al.
2012
Ecology Letters, Wiley-Blackwell 2012, Vol. 15, (9) : 935-946
Wollrab, Sabine; Diehl, Sebastian; De Roos, Andre M.
2011
Journal of Animal Ecology, Vol. 80, (3) : 603-14
Effenberger, Michael; Diehl, Sebastian; Gerth, Maximilian; et al.
2011
Ecology Letters, Wiley 2011, Vol. 14, (9) : 914-21
Englund, Göran; Öhlund, Gunnar; Hein, Catherine L; et al.
2010
Global Change Biology, Vol. 16, (7) : 1954-1965
Berger, Stella A; Diehl, Sebastian; Stibor, Herwig; et al.
2010
The American naturalist, Vol. 175 : E91-E104
Jäger, Christoph G; Diehl, Sebastian; Emans, Maximilian
2009
Limnology and Oceanography, Vol. 54, (5) : 1746-1752
Striebel, M.; Bartholme, S.; Zernecke, R.; et al.
2009
American Naturalist, Vol. 174, (1) : 141-147
Striebel, M.; Behl, S.; Diehl, S.; et al.
2008
Freshwater Biology, Vol. 53, (5) : 996-1011
Effenberger, M.; Engel, J.; Diehl, S.; et al.
2008
Ecology, Vol. 89, (5) : 1272-1286
Jager, C. G.; Diehl, S.; Matauschek, C.; et al.
2008
Limnology and Oceanography, Vol. 53, (6) : 2361-2373
Jäger, Christoph G.; Diehl, Sebastian; Schmidt, Gertraud M.
2007
Oecologia, Vol. 150, (4) : 643-654
Berger, S. A.; Diehl, S.; Stibor, H.; et al.
2007
Ecology, Vol. 88, (11) : 2915-2925
Haas, K.; Kohler, U.; Diehl, S.; et al.
2007
Oikos, Vol. 116, (7) : 1128-1143
Hall, S. R.; Shurin, J. B.; Diehl, S.; et al.
2006
American Naturalist, Vol. 168, (3) : 358-372
Anderson, K. E.; Nisbet, R. M.; Diehl, S.
2006
Limnology and Oceanography, Vol. 51, (4) : 1898-1905
Berger, S. A.; Diehl, S.; Kunz, T. J.; et al.
2005
Ecology Letters, Vol. 8, (9) : 933-943
Anderson, K. E.; Nisbet, R. M.; Diehl, S.; et al.
2005
Ecology, Vol. 86, (11) : 2931-2945
Diehl, S.; Berger, S.; Wohrl, R.
2005
Theoretical Population Biology, Vol. 67, (2) : 85-99
Krivan, V.; Diehl, S.
2005
Oikos, Vol. 108, (2) : 386-400
Roll, S. K.; Diehl, S.; Cooper, S. D.
2004
Ecology Letters, Vol. 7, (4) : 321-328
Stibor, H.; Vadstein, O.; Diehl, S.; et al.
2003
Freshwater Biology, Vol. 48, (6) : 1050-1063
Kunz, T. J.; Diehl, S.
2003
Limnology and Oceanography, Vol. 48, (5) : 1903-1912
Ptacnik, R.; Diehl, S.; Berger, S.
2002
Ecology Letters, Vol. 5, (2) : 302-315
Chase, J. M.; Abrams, P. A.; Grover, J. P.; et al.
2002
Ecology, Vol. 83, (2) : 399-411
Diehl, S.; Berger, S.; Ptacnik, R.; et al.
2001
Ecology, Vol. 82, (11) : 2977-2983
Diehl, S.; Feissel, M.
2000
American Naturalist, Vol. 156, (3) : 293-313
Diehl, S.; Cooper, S. D.; Kratz, K. W.; et al.
2000
Oecologia, Vol. 123, (1) : 138-148
Wahlstrom, E.; Persson, L.; Diehl, S.; et al.

Research groups

Contact person
Mathematical ecology
Group member

Research projects