Publications du Service canadien des forêts

Space-use behaviour of woodland caribou based on a cognitive movement model. 2015. Avgar, T.; Baker, J.A.; Brown,G.S.; Hagens, J.S.; Kittle, A.M.; Mallon, E.E.; Mcgreer, M.T.; Mosser, A.; Newmaster, S.G.; Patterson, B.R.; Reid, D.E.B.; Rodgers, A.R.; Shuter, J.; Street, G.M.; Thompson, I.; Turetsky, M.J. Wiebe, P.A.;Fryxell, J.M. Journal of Animal Ecology 84:1059-1070.

Année : 2015

Disponible au : Centre de foresterie des Grands Lacs

Numéro de catalogue : 35992

La langue : Anglais

Disponibilité : PDF (demande par courriel)

Disponible sur le site Web de la revue ou du journal.
DOI : 10.1111/1365-2656.12357

† Ce site peut exiger des frais.


Résumé en langage clair et simple

We studied the movement patterns of 60 adult female caribou fitted with GPS radio collars at each of two study areas in the boreal forests of northern Ontario. One area was commercially logged over the previous 50 years and the other was not. We expected caribou movements to be influenced by the search for nutrition and avoidance of predators. We found that forage abundance was the strongest influence. The avoidance of predators and moose (areas that are favourable to moose may attract more wolves and increase caribou predation risk) also had a strong effect on movement, but not for all individuals. We showed for the first time that caribou rely on sensory inputs from their surroundings as well as on long-term spatial memory to make informed decisions. This information improves our understanding of caribou behaviour.