Effets de la densité de population sur le comportement d'approvisionnement et le budget d'activité du cerf de Virgine (Odocoileus virginianus) à l'Île d'Anticosti

Authors: Coulombe, Marie-Lou
Advisor: Huot, JeanCôté, Steeve D.
Abstract: We investigated the influence of population density on movements, activity budgets and space utilization of white-tailed deer in a controlled-density experiment. Movements and activity budgets were generally not greatly affected by density. Seasonal and annual increases in végétation abundance resulted in a réduction in the length of activity bouts because the time required to gather food decreases when végétation becomes more abundant. In unenclosed areas, deer spent less time active at the beginning of the summer and more time resting, likely to process less digestible forage. Deer at high density, contrarily to deer at low density, did not select areas with dense cover. If population density reduces forage availability, we predict that deer will adapt by feeding for longer periods, particularly at the beginning of the summer when forage is more limited. Space utilization in relation to food and cover is affected by population density.
Document Type: Mémoire de maîtrise
Issue Date: 2006
Open Access Date: 24 January 2019
Permalink: http://hdl.handle.net/20.500.11794/33252
Grantor: Université Laval
Collection:Thèses et mémoires

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