Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Shawn F. Morrison"'
Publikováno v:
Rangifer, Vol 31, Iss 1 (2011)
The demographic and environmental influences on large mammal morphology are central questions in ecology. We investigated the effects of population abundance and climate on body size and number of male antler points for the La Poile and Middle Ridge
Externí odkaz:
https://doaj.org/article/4b2e64bfb1d443c2ac1e7ab6b6d7f007
Autor:
Darren Pouliot, Rasim Latifovic, Keith P. Lewis, Shawn F. Morrison, J. Glenn Luther, Jackie N. Weir, James A. Schaefer, Shane P. Mahoney
Publikováno v:
Population Ecology. 58:91-103
The rates and causes of juvenile mortality are central features of the dynamics and conservation of large mammals, like woodland caribou (Rangifer tarandus caribou (Gmelin, 1788)), but intrinsic and extrinsic factors may be modified by variations in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a90305612d3dc9c8d6527d23cb293f7d
https://doi.org/10.1007/s10144-015-0525-y
https://doi.org/10.1007/s10144-015-0525-y
Autor:
Shawn F. Morrison, Tara Narwani, Jahan Kariyeva, Marie-Claude Roy, Ermias T. Azeria, Tyler P. Cobb, Diane L. Haughland, Erin M. Bayne, Péter Sólymos, Turar Sandybayev, Stan Boutin, Robert Hinchliffe, Paola Pierossi, Jim Schieck, Jillian Kittson, Anne C.S. McIntosh
Publikováno v:
Wildlife Society Bulletin. 39:472-479
The Alberta Biodiversity Monitoring Institute (ABMI) monitors large-scale responses of biodiversity to environmental change in Alberta, Canada, based on standardized and ongoing data collection. In this case study, we show that such a standardized mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2c17f389b4af58210d08293299f1d3b
https://doi.org/10.1002/wsb.564
https://doi.org/10.1002/wsb.564
Publikováno v:
Rangifer; Vol 31, No 1 (2011); 21-34
Rangifer, Vol 31, Iss 1 (2011)
Rangifer, Vol 31, Iss 1 (2011)
The demographic and environmental influences on large mammal morphology are central questions in ecology. We investigated the effects of population abundance and climate on body size and number of male antler points for the La Poile and Middle Ridge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8646174fa951e816dd1a730a6ee6f73
https://doi.org/10.7557/2.31.1.1917
https://doi.org/10.7557/2.31.1.1917
Publikováno v:
Arctic, Antarctic, and Alpine Research. 40:481-486
We examined the influence of leaf size on forage selection by collared pikas (Ochotona collaris) living in alpine meadows in the Yukon Territory, Canada, by comparing the winter diets of individually recognized pikas to the available vegetation withi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1676dec26773eae0a67425001916db84
https://doi.org/10.1657/1523-0430(07-069)[hudson]2.0.co
https://doi.org/10.1657/1523-0430(07-069)[hudson]2.0.co
Autor:
David S. Hik, Shawn F. Morrison
Publikováno v:
Canadian Journal of Zoology. 86:456-461
The specific nutritional characteristics by which herbivores evaluate their foraging options are complex. We experimentally manipulated the crude protein and water content of two forage species ( Carex consimilis Holm. (= Carex bigelowii Torr. ex Sch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3c91cc07ce169f048b83cd3692b423e
https://doi.org/10.1139/z08-023
https://doi.org/10.1139/z08-023
Publikováno v:
Ecological Modelling. 211:396-402
We adapted Owen-Smith's general growth-metabolism-mortality (GMM) model to estimate the abundance of a population of Dall sheep ( Ovis dalli dalli ) in the southwest Yukon, Canada. Estimated sheep densities using the GMM approach (18–32 sheep/km 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25b44fda8c499c863f58ca0e7ced8d60
https://doi.org/10.1016/j.ecolmodel.2007.09.016
https://doi.org/10.1016/j.ecolmodel.2007.09.016
Autor:
Shawn F. Morrison, David S. Hik
Publikováno v:
Journal of Animal Ecology. 76:899-907
1. Demographic analysis is essential in order to determine which factors, such as survival, fertility and other life-history characteristics, have the greatest influence on a population's rate of growth (lambda). 2. We used life-table response experi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3802f51c1c355220522287b1e6393b4
https://doi.org/10.1111/j.1365-2656.2007.01276.x
https://doi.org/10.1111/j.1365-2656.2007.01276.x
Publikováno v:
Canadian Journal of Zoology. 82:533-540
The effects of predation risk on foraging behavior often result in a trade-off between obtaining food and seeking shelter and may alter the selectivity of herbivores for individual plant species. We experimentally measured forage selection by a small
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::126afdd26940a3098290105a8abc645a
https://doi.org/10.1139/z04-024
https://doi.org/10.1139/z04-024
Publikováno v:
Forest Ecology and Management. 172:173-182
Vegetative, topological, and spatial features that were associated with habitat use of radio-collared white-tailed deer (Odocoileus virginianus, n=17 in 1996–1997 and n=13 in 1997–1998) were identified as snow depth changed in the Odell Deeryard,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47d697ed5c624625b31401d40651db02
https://doi.org/10.1016/s0378-1127(01)00809-x
https://doi.org/10.1016/s0378-1127(01)00809-x