Patrick M.A. James

Associate Professor,
Université de Montréal

Département de sciences biologiques
Institution page
Personal page


  • Bachelor of Science :Ecology and Evolution, 2002, University of Toronto, Canada
  • Doctor of Philosophy: Forest Ecology, 2009, University of Toronto, Canada
  • Post-doctoral training: Landscape Genetics, 2011, U. of Alberta


Research in the lab specifically examines how forest landscape structure affects spatial population dynamics, landscape connectivity, gene flow, and interactions among disturbances such as forest fire, insect outbreaks, and forest management. Using empirical, simulation, and statistical approaches we aim to improve our understanding of the links between pattern and processes to better forecast the long-term ecosystem consequences of land-use and climate change and to improve forest management strategies.

QCBS students

Jennifer Sauri Ramirez

Other (co-)supervisor: Liliana Perez, Université de Montreal
(Start: 2017)
Other QCBS (co-)supervisor: Liliana Perez
Modélisation de l’effet du changement du climat sur la synchronisation phénologique entre un insecte défoliateur et son hôte: une approche à base d’agents

Previous students (since 2009)

Colin Garroway

Postdoctoral fellow
(Start: 2015, End: 2015)
Improving models of spruce budworm outbreak risk using landscape genomics
Personal page

Jeremy Larroque

Postdoctoral fellow
(Start: 2017, End: 2019)
Spruce budworm spatio-temporal population genetics
Personal page

Ronan Marrec

Postdoctoral fellow
(Start: 2015, End: 2016)
Determining processes which drive the metacommunity structure of spruce budworm’s (Choristoneura fumiferana) associated parasitoids
Personal page

Louis-Etienne Robert

Postdoctoral fellow
(Start: 2014, End: 2017)
Fire-spruce budworm interactions in the boreal forest

Mathieu Landry

Other (co-)supervisor: Patrick James, UdeM
(Start: 2015, End: 2020)
Other QCBS (co-)supervisor: Steven Kembel
Link to thesis (pdf)

Simon Legault

(Start: 2013, End: 2019)
Dynamique spatiale et dispersion relative de deux guêpes parasitoïdes attaquant la tordeuse des bourgeons de l’épinette

Patricia Sujii

Other (co-)supervisor: Maria Imaculada Zucchi, Unicamp
(Start: 2014, End: 2015)
A genetic approach for simulating persistence of reintroduced tree species populations in tropical forest restoration plantings

Julian Wittische

(Start: 2014, End: 2019)
Defining the role of biological interactions and abiotic landscape features in shaping spatial genetic variation in MPB, fungi and pine

Paul Mayrand

Other (co-)supervisor: Élise Filotas
(Start: 2014, End: 2016)
Modelling the development of spatial genetic structure in response to landscape heterogeneity in the mountain pine beetle outbreak system (Dendroctonus ponderosae)

Olivier Pontbriand-Paré

Other (co-)supervisor: Véronique Martel, CFL
(Start: 2014, End: 2016)
Influence of landscape structure on eastern spruce budworm [Choristoneura fumiferana] associated parasitoids communities in Québec

Jennifer Sauri Ramirez

(Start: 2017, End: 2020)
Other QCBS (co-)supervisor: Liliana Perez
Effect of climate change and host tree phenology on the spatial extent of spruce budworm outbreaks: an agent-based approach

Melbert Schwarz

Other (co-)supervisor: Dan Kneeshaw, Universite du Quebec a Montreal
(Start: 2015, End: 2018)
Other QCBS (co-)supervisor: Steven Kembel
Investigating the impact of the gut associated microbial community on the health of Eastern spruce budworm, Choristoneura fumiferana (Clemens) using a “multi-omics” approach.

Examples of species studied

Dendroctonus ponderosae
Arabidopsis thaliana
Choristoneura fumiferana


45- The Vision of Managing for Pest-Resistant Landscapes: Realistic or Utopic?
Journal Article
Kneeshaw D D , Sturtevant B R , DeGrandpé L , Doblas-Miranda E , James P M A , Tardif D , Burton P J ,
2021 Current Forestry Reports (Date Added: 2021-05-10)

44- Global review on interactions between insect pests and other forest disturbances
Journal Article
Canelles Q , Aquilué N , James P M A , Lawler J , Brotons L ,
2021 Landscape Ecology (Date Added: 2021-03-07)

43- Community-level modelling of boreal forest mammal distribution in an oil sands landscape
Journal Article
Wittische J , Heckbert S , James P M , Burton A C , Fisher J T ,
2021 Science of the Total Environment (Date Added: 2021-01-04)

42- Erratum: Tracking insect outbreaks: A case study of community-assisted moth monitoring using sex pheromone traps (Facets (2020) 5 (91-104) DOI: 10.1139/facets-2019-0029)
Journal Erratum
Carleton R D , Owens E , Blaquière H , Bourassa S , Bowden J J , Candau J , DeMerchant I , Edwards S , Heustis A , James P M , Kanoti A M , MacQuarrie C J , Martel V , Moise E R , Pureswaran D S , Shanks E , Johns R C ,
2020 Facets (Date Added: 2020-11-26)

41- Tracking insect outbreaks: A case study of community-assisted moth monitoring using sex pheromone traps
Journal Article
Carleton R D , Owens E , Blaquière H , Bourassa S , Bowden J J , Candau J , DeMerchant I , Edwards S , Heustis A , James P M , Kanoti A M , MacQuarrie C J , Martel V , Moise E R , Pureswaran D S , Shanks E , Johns R C ,
2020 Facets (Date Added: 2020-10-29)

40- Forest landscape structure influences the cyclic-eruptive spatial dynamics of forest tent caterpillar outbreaks
Journal Article
Robert L , Sturtevant B R , Kneeshaw D , James P M A , Fortin M , Wolter P T , Townsend P A , Cooke B J ,
2020 Ecosphere (Date Added: 2020-09-08)

39- Insect herbivory in novel Quercus ilex L. forests: the role of landscape attributes, forest composition and host traits
Journal Article
Ruiz-Carbayo H , Pino J , Bonal R , James P M A , Hampe A , Molowny-Horas R , Espelta J M ,
2020 Annals of Forest Science (Date Added: 2020-04-15)

38- Spatial genetic structure at the leading edge of a spruce budworm outbreak: The role of dispersal in outbreak spread
Journal Article
Larroque J , Johns R , Canape J , Morin B , James P M ,
2020 Forest Ecology and Management (Date Added: 2020-02-18)

37- Adaptive capacity in social–ecological systems: a framework for addressing bark beetle disturbances in natural resource management
Journal Article
Cottrell S , Mattor K M , Morris J L , Fettig C J , McGrady P , Maguire D , James P M A , Clear J , Wurtzebach Z , Wei Y , Brunelle A , Western J , Maxwell R , Rotar M , Gallagher L , Roberts R ,
2019 Sustainability Science (Date Added: 2019-12-24)

36- TRIA-Net: 10 years of collaborative research on turning risk into action for the mountain pine beetle epidemic
Journal Article
James P M , Huber D P ,
2019 Canadian Journal of Forest Research (Date Added: 2019-12-13)

35- Strategies to optimize modeling habitat suitability of Bertholletia excelsa in the Pan-Amazonia
Journal Article
Tourne D C M , Ballester M V R , James P M A , Martorano L G , Guedes M C , Thomas E ,
2019 Ecology and Evolution (Date Added: 2019-11-15)

33- A conceptual framework for the spruce budworm Early Intervention Strategy: Can outbreaks be stopped?
Journal Article
Johns R C , Bowden J J , Carleton D R , Cooke B J , Edwards S , Emilson E J S , James P M A , Kneeshaw D , MacLean D A , Martel V , Moise E R D , Mott G D , Norfolk C J , Owens E , Pureswaran D S , Quiring D T , Régnière J , Richard B , Stastny M ,
2019 Forests (Date Added: 2019-10-29)

32- Temporal variation in spatial genetic structure during population outbreaks: Distinguishing among different potential drivers of spatial synchrony
Journal Article
Larroque J , Legault S , Johns R , Lumley L , Cusson M , Renaut S , Levesque R C , James P M A ,
2019 Evolutionary Applications (Date Added: 2019-08-30)

31- The contribution of genetics and genomics to understanding the ecology of the mountain pine beetle system
Journal Article
Cullingham C I , Janes J K , Hamelin R C , James P M , Murray B W , Sperling F A ,
2019 Canadian Journal of Forest Research (Date Added: 2019-06-30)

30- Spatial and genetic structure of the lodgepole × jack pine hybrid zone
Journal Article
Burns I , James P M , Coltman D W , Cullingham C I ,
2019 Canadian Journal of Forest Research (Date Added: 2019-06-30)

29- A genetic approach for simulating persistence of reintroduced tree species populations in restored forests
Journal Article
Sujii P S , Nagai M E , Zucchi M I , Brancalion P H , James P M ,
2019 Ecological Modelling (Date Added: 2019-05-17)

28- Parasitism Rates of Spruce Budworm Larvae: Testing the Enemy Hypothesis Along a Gradient of Forest Diversity Measured at Different Spatial Scales
Journal Article
Legault S , James P M A ,
2018 Environmental entomology (Date Added: 2018-10-16)

27- Landscape host abundance and configuration regulate periodic outbreak behavior in spruce budworm Choristoneura fumiferana
Journal Article
Robert L , Sturtevant B R , Cooke B J , James P M A , Fortin M , Townsend P A , Wolter P T , Kneeshaw D ,
2018 Ecography (Date Added: 2018-02-11)

26- Spatiotemporal variation in drivers of parasitoid metacommunity structure in continuous forest landscapes
Journal Article
Marrec R , Pontbriand-Paré O , Legault S , James P M A ,
2018 Ecosphere (Date Added: 2018-02-11)

25- Risky business: The impact of climate and climate variability on human population dynamics in Western Europe during the Last Glacial Maximum
Journal Article
Burke, A, Kageyama, M, Latombe, G, Fasel, M, Vrac, M, Ramstein, G, James, PMA
2017 Quaternary Science Reviews (Date Added: 2017-04-30)

24- Temperature fine-tunes Mediterranean Arabidopsis thaliana life-cycle phenology geographically
Journal Article
Marcer A , Vidigal D S , James P M A , Fortin M , Méndez-Vigo B , Hilhorst H W M , Bentsink L , Alonso-Blanco C , Picó F X ,
2017 Plant Biology (Date Added: 2017-04-20)

23- Lagged cumulative spruce budworm defoliation affects the risk of fire ignition in Ontario, Canada:
Journal Article
James P M A , Robert L , Wotton B M , Martell D L , Fleming R A ,
2017 Ecological Applications (Date Added: 2017-03-15)

22- Riverscape genetic structure of a threatened and dispersal limited freshwater species, the Rocky Mountain Sculpin (Cottus sp.)
Journal Article
Ruppert J L W , James P M A , Taylor E B , Rudolfsen T , Veillard M , Davis C S , Watkinson D , Poesch M S ,
2017 Conservation Genetics (Date Added: 2017-02-19)

21- Environmental factors structuring benthic primary producers at different spatial scales in the St. Lawrence River (Canada)
Journal Article
Lévesque, D, Hudon, C, James, PMA, Legendre, P
2016 Aquatic Sciences (Date Added: 2016-11-28)

20- Modeling Landscape-Level Spatial Variation in Sex Ratio Skew in the Mountain Pine Beetle (Coleoptera: Curculionidae)
Journal Article
James, PMA, Janes, JK, Roe, AD, Cooke, BJ
2016 Environmental Entomology (Date Added: 2016-07-06)

19- Landscape connectivity and insect herbivory: A framework for understanding tradeoffs among ecosystem services
Journal Article
Maguire, DY, James, PMA, Buddle, CM, Bennett, EM
2015 Global Ecology and Conservation (Date Added: 2015-08-26)

18- Life-stage differences in spatial genetic structure in an irruptive forest insect: implications for dispersal and spatial synchrony
Journal Article
James, PMA, Cooke, B, Brunet, BMT, Lumley, LM, Sperling, FAH, Fortin, M-J, Quinn, VS, Sturtevant, BR
2015 Molecular Ecology (Date Added: 2015-05-07)

17- Exploring the impact of climate variability during the Last Glacial Maximum on the pattern of human occupation of Iberia
Journal Article
Burke, A, Levavasseur, G, James, PMA, Guiducci, D, Izquierdo, MA, Bourgeon, L, Kageyama, M, Ramstein, G, Vrac, M
2014 Journal of Human Evolution (Date Added: 2015-05-07)

16- Forest recovery patterns in response to divergent disturbance regimes in the Border Lakes region of Minnesota (USA) and Ontario (Canada)
Journal Article
Sturtevant, BR, Miranda, BR, Wolter, PT, James, PMA, Fortin, M-J, Townsend, PA
2014 Forest Ecology and Management (Date Added: 2014-01-06)

15-Archaeological Survey in Eastern Guadalajara Province, Spain: Initial Results
Journal Article
Burke, A, Maillo Fernandez, J, Fuertes Prieto, N, Bisson, M, James, P, Levavasseur, G
2013 Canadian Journal of Archaeology ( Date Added: 2015-05-07)

14- Characterizing the physical and genetic structure of the lodgepole pine × jack pine hybrid zone: mosaic structure and differential introgression
Journal Article
Cullingham, CI, James, PMA, Cooke, JEK, Coltman, DW
2012 Evolutionary Applications (Date Added: 2012-09-27)

13-Ecosystems and Spatial Patterns
Book Chapter
James, P, Fortin, M-J
2012 Encyclopedia of sustainability science and technology ( Date Added: 2012-09-27)

12- Assessing Knowledge Ambiguity in the Creation of a Model Based on Expert Knowledge and Comparison with the Results of a Landscape Succession Model in Central Labrador
Book Chapter
Doyon, F, Sturtevant, BR, Papaik, MJ, Fall, A, Miranda, B, Kneeshaw, DD, Messier, C, Fortin, M-J, James, PMA
2012 Expert Knowledge and Its Application in Landscape Ecology (Date Added: 2012-09-27)

11- Spatial statistics, spatial regression, and graph theory in ecology
Journal Article
Fortin, M-J, James, PMA, MacKenzie, A, Melles, SJ, Rayfield, B
2012 Spatial Statistics (Date Added: 2012-09-26)

10- Spatial genetic structure of the mountain pine beetle (Dendroctonus ponderosae) outbreak in western Canada: Historical patterns and contemporary dispersal
Journal Article
Gayathri Samarasekera, GDN, Bartell, NV, Lindgren, BS, Cooke, JEK, Davis, CS, James, PMA, Coltman, DW, Mock, KE, Murray, BW
2012 Molecular Ecology (Date Added: 2012-09-26)

9- Spatial genetic structure of a symbiotic beetle-fungal system: Toward multi-taxa integrated landscape genetics
Journal Article
James, PMA, Coltman, DW, Murray, BW, Hamelin, RC, Sperling, FAH
2011 PLoS ONE (Date Added: 2012-09-26)

8- Spatial Community Structure of Mountain Pine Beetle Fungal Symbionts Across a Latitudinal Gradient
Journal Article
Roe, AD, James, PMA, Rice, AV, Cooke, JEK, Sperling, FAH
2011 Microbial Ecology (Date Added: 2012-09-26)

7- Modelling Spatial Interactions Among Fire, Spruce Budworm, and Logging in the Boreal Forest
Journal Article
James, PMA, Fortin, M-J, Sturtevant, BR, Fall, A, Kneeshaw, D
2011 Ecosystems (Date Added: 2012-09-26)

6- Utility of computer simulations in landscape genetics
Journal Article
Epperson, BK, McRae, BH, Scribner, K, Cushman, SA, Rosenberg, MS, Fortin, M-J, James, PMA, Murphy, M, Manel, S, Legendre, P, Dale, MRT
2010 Molecular Ecology (Date Added: 2012-09-26)

5- Identifying significant scale-specific spatial boundaries using wavelets and null models: Spruce budworm defoliation in Ontario, Canada as a case study
Journal Article
James, PMA, Fleming, RA, Fortin, M-J
2010 Landscape Ecology (Date Added: 2012-09-26)

4- Considering spatial and temporal scale in landscape-genetic studies of gene flow
Journal Article
Anderson, CD, Epperson, BK, Fortin, M-J, Holderegger, R, James, PMA, Rosenberg, MS, Scribner, KT, Spear, S
2010 Molecular Ecology (Date Added: 2012-09-26)

3- Comparing static versus dynamic protected areas in the Québec boreal forest
Journal Article
Rayfield, B, James, PMA, Fall, A, Fortin, M-J
2008 Biological Conservation (Date Added: 2012-09-26)

2- The effects of spatial legacies following shifting management practices and fire on boreal forest age structure
Journal Article
James, PMA, Fortin, M-J, Fall, A, Kneeshaw, D, Messier, C
2007 Ecosystems (Date Added: 2012-09-26)

1- Reserve network design combining spatial graph theory and species' spatial requirements
Journal Article
James, P, Rayfield, B, Fortin, M-J, Fall, A, Farley, G
2005 Geomatica (Date Added: 2012-09-26)