3 Works

Data from: Edge influence on vegetation at natural and anthropogenic edges of boreal forests in Canada and Fennoscandia

Karen A. Harper, S. Ellen Macdonald, Michael S. Mayerhofer, Shekhar R. Biswas, Per-Anders Esseen, Kristoffer Hylander, Katherine J. Stewart, Azim U. Mallik, Pierre Drapeau, Bengt-Gunnar Jonsson, Daniel Lesieur, Jari Kouki & Yves Bergeron
1. Although anthropogenic edges are an important consequence of timber harvesting, edges due to natural disturbances or landscape heterogeneity are also common. Forest edges have been well-studied in temperate and tropical forests, but less so in less productive, disturbance-adapted boreal forests. 2. We synthesized data on forest vegetation at edges of boreal forests and compared edge influence among edge types (fire, cut, lake/wetland; old vs. young), forest types (broadleaf vs. coniferous) and geographic regions. Our...

Data from: Adjustments in habitat selection to changing availability induce fitness costs for a threatened ungulate

Chrystel L. Losier, Serge Couturier, Martin-Hugues St-Laurent, Pierre Drapeau, Claude Dussault, Tyler Rudolph, Vincent Brodeur, Jerod A. Merkle & Daniel Fortin
1. Functional responses in habitat selection occur when individuals adjust their selection of habitat features as a function of the availability of those features. Functional responses in habitat selection are generally assumed to be fitness-rewarding tactics and are used to guide conservation actions. Fitness consequences of functional responses, however, have rarely been evaluated. 2. Eighty-three caribou were followed with GPS collars to establish the link between functional responses in habitat selection and adult female survival,...

Data from: A spatial theory for characterizing predator–multiprey interactions in heterogeneous landscapes

Daniel Fortin, Pietro-Luciano Buono, Oswald J. Schmitz, Nicolas Courbin, Chrystel Losier, Martin-Hugues St-Laurent, Pierre Drapeau, Sandra Heppell, Claude Dussault, Vincent Brodeur & Julien Mainguy
Trophic interactions in multiprey systems can be largely determined by prey distributions. Yet, classic predator–prey models assume spatially homogeneous interactions between predators and prey. We developed a spatially informed theory that predicts how habitat heterogeneity alters the landscape-scale distribution of mortality risk of prey from predation, and hence the nature of predator interactions in multiprey systems. The theoretical model is a spatially explicit, multiprey functional response in which species-specific advection–diffusion models account for the response...

Registration Year

  • 2015

Resource Types

  • Dataset


  • Université du Québec en Abitibi-Témiscamingue
  • Université Laval
  • University of Quebec at Montreal
  • University of Eastern Finland
  • University of Alberta
  • Mid Sweden University
  • Dalhousie University
  • Center for Northern Studies
  • Lakehead University
  • Mount Saint Vincent University