Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Frédéric Bilodeau"'
Autor:
Eeva M Soininen, Gilles Gauthier, Frédéric Bilodeau, Dominique Berteaux, Ludovic Gielly, Pierre Taberlet, Galina Gussarova, Eva Bellemain, Kristian Hassel, Hans K Stenøien, Laura Epp, Audun Schrøder-Nielsen, Christian Brochmann, Nigel G Yoccoz
Publikováno v:
PLoS ONE, Vol 10, Iss 1, p e0115335 (2015)
Sympatric species are expected to minimize competition by partitioning resources, especially when these are limited. Herbivores inhabiting the High Arctic in winter are a prime example of a situation where food availability is anticipated to be low,
Externí odkaz:
https://doaj.org/article/7b61db1c6b9745ffad2fd0efb7337b53
Publikováno v:
Polar Biology. 37:845-857
In low-productivity environments such as the tundra, it has been proposed that regular, multi-annual population cycles of lemmings could be driven by winter food depletion in years of peak abundance. If lemming population dynamics is controlled by fo
Publikováno v:
Journal of Mammalogy. 94:813-819
In the Arctic tundra, snow is believed to protect lemmings from mammalian predators during winter. We hypothesized that snow quality (depth and hardness) should affect mammalian predation rates on lemmings, but that this effect would depend on the pr
Autor:
Frédéric Bilodeau, Dominique Berteaux, Charles J. Krebs, Alice J. Kenney, Gilles Gauthier, Donald G. Reid
Publikováno v:
Oikos. 122:1167-1176
Snow cover is a key environmental component for tundra wildlife that will be aff ected by climate change. Change to the snow cover may aff ect the population dynamics of high-latitude small mammals, which are active throughout the winter and reproduc
Publikováno v:
Oecologia. 172:1007-1016
Rising temperatures and changes in the precipitation regime will have a strong impact on the quality of the snow cover in the Arctic. A snow cover of good quality protecting lemmings from cold temperatures and predators is thought to be an important
Autor:
Frédéric Bilodeau, Deborah J. Wilson, Gilles Gauthier, Donald G. Reid, David Duchesne, Charles J. Krebs, Alice J. Kenney, Scott Gilbert
Publikováno v:
Journal of Mammalogy. 93:87-92
Lemmings construct nests of grass and moss under the snow during winter, and counting these nests in spring is 1 method of obtaining an index of winter density and habitat use. We counted winter nests after snow melt on fixed grids on 5 areas scatter
Autor:
B. Scott Gilbert, Elizabeth J. Hofer, Charles J. Krebs, Gilles Gauthier, Donald G. Reid, Alice J. Kenney, Frédéric Bilodeau, Dominique Berteaux
Publikováno v:
ARCTIC. 66
We attempted to live trap lemmings under the snow in their preferred winter habitat at two sites in the Canadian Arctic using chimney-like boxes. Lemmings used the boxes during winter, but we had very low trapping success in April and May. During spr
Autor:
Elizabeth J. Hofer, B. Scott Gilbert, Frédéric Bilodeau, Gilles Gauthier, Charles J. Krebs, Alice J. Kenney, Maria C.-Y. Leung, David Duchesne, Donald G. Reid
Publikováno v:
Oecologia. 168(4)
The insulative value of early and deep winter snow is thought to enhance winter reproduction and survival by arctic lemmings (Lemmus and Dicrostonyx spp). This leads to the general hypothesis that landscapes with persistently low lemming population d