Eric Pedersen

Assistant Professor,
Concordia University

Department of Biology
Institution page
Personal page


2015/1 - 2017/3
Post-doctorate, Research Associate, Limnology, University of Wisconsin - Madison

2009/9 - 2015/5
Doctorate Doctor of Philosophy, Biology, McGill University

2003/9 - 2008/5
Bachelor's Honours, Bachelor's of Science, Biology and economics, University of Saskatchewan


Marine and freshwater communities can change rapidly, with once-dominant species suddenly collapsing and previously rare or absent species exploding in abundance. My research focuses on understanding the causes (both human and natural) of these rapid shifts, detecting them as they occur, and understanding the role that spatial variation in species interactions and diversity of movement capacity plays in shaping how resilient fisheries are to these shifts. I use long-term data sets, mathematical and computer models, and modern statistical techniques to better understand these complex systems.

QCBS students

Fonya Irvine

(Start: 2021)
Threshold responses of spatially structured marine communities.

Félix-Olivier Dufour

Other (co-)supervisor: Gabriel Pigeon,Université du Québec en Abitibi-Témiscamingue
(Start: 2024)
Other QCBS (co-)supervisor: Fanie Pelletier
Effets de la récolte sélective sur la dynamique de population du mouflon d’Amérique (Ovis canadensis)

Danielle Mac Rae

(Start: 2020)
Other QCBS (co-)supervisor: Jennifer Sunday
Does variation in dispersal diversity increase metacommunity resilience?

John-Philip Williams

(Start: 2020)
Developing precautionary approach frameworks within changing productivity regimes: a case study of Northern Shrimp (Pandalis borealis), SFAs 4-7

Previous students (since 2009)

Kyle Krumsick

Postdoctoral fellow
(Start: 2021, End: 2023)
Size Spectra Modeling to Assess Productivity, Recovery, and Sustainable Levels of Community Harvesting of Eastern Canadian Marine Shelf Ecosystems

Examples of species studied

Tayassu pecari
Homarus americanus
Gadus morhua
Brassica napus


24- Step selection functions with non-linear and random effects
Journal Article
Klappstein N J , Michelot T , Fieberg J , Pedersen E J , Mills Flemming J ,
2024 Methods in Ecology and Evolution (Date Added: 2024-06-28)

23- Interactive effects of predation and climate on the distributions of marine shellfish in the Northwest Atlantic
Journal Article
Zabihi‐Seissan S , Baker K D , Stanley R R E , Tunney T D , Beauchamp B , Benoit H P , Brickman D , Chabot D , Cook A , Deslauriers D , Koen‐Alonso M , Lawlor J , Le Bris A , Mullowney D R J , Roux M , Skanes K R , Wang Z , Pedersen E J ,
2024 Oikos (Date Added: 2024-05-22)

22- Taxonomic and functional-trait metrics track recovery of demersal fish and shrimp communities following system collapse
Journal Article
Aune M , Ramasco V , Wells N , Warren M , Cyr F , Pedersen E J , Koen-Alonso M , Eriksen E , Primicerio R , Lindstrøm U , Renaud P E ,
2024 Frontiers in Marine Science (Date Added: 2024-03-29)

21- Macrogenetics reveals multifaceted influences of environmental variation on vertebrate population genetic diversity across the Americas
Journal Article
Lawrence, ER, Pedersen, EJ, Fraser, DJ
2023 Molecular Ecology (Date Added: 2023-09-29)

19- Interdisciplinary collaboration is essential to understand and implement climate-resilient strategies in cities
Journal Article
Ziter, CD, Pedersen, EJ, Kucharik, CJ, Turner, MG
2019 Proceedings of the National Academy of Sciences of the United States of America (Date Added: 2020-01-07)

18- Scale-dependent interactions between tree canopy cover and impervious surfaces reduce daytime urban heat during summer
Journal Article
Ziter, CD, Pedersen, EJ, Kucharik, CJ, Turner, MG
2019 Proceedings of the National Academy of Sciences of the United States of America (Date Added: 2019-04-22)

17- Experimental evidence for concentration-dependence and intraspecific variation of movement behaviour in american lobster (Homarus americanus) larvae
Journal Article
Pedersen, EJ, Stanley, RRE, Snelgrove, PVR, Guichard, F
2017 Canadian Journal of Zoology (Date Added: 2017-10-24)

16- Signatures of the collapse and incipient recovery of an overexploited marine ecosystem
Journal Article
Pedersen, EJ, Thompson, PL, Ball, RA, Fortin, M-J, Gouhier, TC, Link, H, Moritz, C, Nenzen, H, Stanley, RRE, Taranu, ZE, Gonzalez, A, Guichard, F, Pepin, P
2017 Royal Society Open Science (Date Added: 2017-07-12)

15- At what scales does aggregated dispersal lead to coexistence?
Journal Article
Pedersen, EJ, Guichard, F
2016 Oikos (Date Added: 2016-11-18)

14- Searching in heterogeneous and limiting environments: Foraging strategies of white-lipped peccaries (Tayassu pecari)
Journal Article
Reyna-Hurtado, R, Chapman, CA, Calme, S, Pedersen, EJ
2012 Journal of Mammalogy (Date Added: 2012-03-08)

13- Simultaneous Bayesian estimation of size-specific catchability and size spectrum parameters from trawl data
Journal Article
Krumsick, KJ, Pedersen, EJ
ICES Journal of Marine Science (Date Added: 2024-02-26)

12- Ecological resilience in tropical Andean lakes: A paleolimnological perspective
Journal Article
Benito, X, Luethje, M, Schneider, T, Fritz, SC, Baker, PA, Pedersen, EJ, Gaüzère, P, de Novaes Nascimento, M, Bush, M, Ruhi, A
Limnology and Oceanography (Date Added: 2024-02-26)

11- Harvesting strategies during a forecasted decline in the Newfoundland and Labrador snow crab fishery
Journal Article
Mullowney, DRJ, Baker, KD, Pedersen, EJ
Fisheries Research (Date Added: 2024-02-26)

10- Geographical differences in habitat relationships of cetaceans across an ocean basin
Journal Article
Mannocci, L, Roberts, JJ, Pedersen, EJ, Halpin, PN
Ecography (Date Added: 2024-02-26)

9- Detecting regime shifts in communities using estimated rates of change
Journal Article
Pedersen, EJ, Koen-Alonso, M, Tunney, TD
ICES Journal of Marine Science (Date Added: 2024-02-26)

8- Hierarchical generalized additive models in ecology: An introduction with mgcv
Journal Article
Pedersen, EJ, Miller, DL, Simpson, GL, Ross, N
PeerJ (Date Added: 2024-02-26)

7- Temperature influences on growth of unfished juvenile Northern cod (Gadus morhua) during stock collapse
Journal Article
Mullowney, DRJ, Rose, GA, Dawe, EG, Rowe, S, Maillet, GL, Pedersen, EJ
Fisheries Oceanography (Date Added: 2024-02-26)

6- Detecting species at low densities: a new theoretical framework and an empirical test on an invasive zooplankton
Journal Article
Walsh, JR, Pedersen, EJ, Vander Zanden, MJ
Ecosphere (Date Added: 2024-02-26)

5- Defining a Safe Operating Space for inland recreational fisheries
Journal Article
Carpenter, SR, Brock, WA, Hansen, GJA, Hansen, JF, Hennessy, JM, Isermann, DA, Pedersen, EJ, Perales, KM, Rypel, AL, Sass, GG, Tunney, TD, Vander Zanden, MJ
Fish and Fisheries (Date Added: 2024-02-26)

4- Biogeographic, ontogenetic, and environmental variability in larval behaviour of American lobster Homarus americanus
Journal Article
Stanley, RRE, Pedersen, EJ, Snelgrove, PVR
Marine Ecology Progress Series (Date Added: 2024-02-26)

3- Nonhierarchical dispersal promotes stability and resilience in a tritrophic metacommunity
Journal Article
Pedersen, EJ, Marleau, JN, Granados, M, Moeller, HV, Guichard, F
American Naturalist (Date Added: 2024-02-26)

2- A sensitive slope: Estimating landscape patterns of forest resilience in a changing climate
Journal Article
Johnstone, JF, McIntire, EJB, Pedersen, EJ, King, G, Pisaric, MJF
Ecosphere (Date Added: 2024-02-26)

1- Dynamics of protein expression during pollen germination in Canola (Brassica napus)
Journal Article
Sheoran, IS, Pedersen, EJ, Ross, ARS, Sawhney, VK
Planta (Date Added: 2024-02-26)