Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Ray L. Case"'
Autor:
Robert Mulders, Robert J. Gau, Ray L. Case, Mark S. Boyce, H. Dean Cluff, Anne Gunn, Chris J. Johnson
Publikováno v:
Wildlife Monographs. 160:1-36
Recent discoveries of diamondiferous kimberlite deposits in the Canadian central Arctic led to unprecedented levels of mineral exploration and development. The cumulative effects of such activities are an issue of concern for government regulatory ag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37d02071dfe6bb3e7480df746d44cbf7
https://doi.org/10.2193/0084-0173(2005)160[1:ceohdo]2.0.co
https://doi.org/10.2193/0084-0173(2005)160[1:ceohdo]2.0.co
Autor:
Anne Gunn, Robert Mulders, Mark S. Boyce, Rob J. Gau, H. Dean Cluff, Ray L. Case, Chris J. Johnson
Publikováno v:
Landscape Ecology. 19:869-882
Multiscale analyses are widely employed for wildlife-habitat studies. In most cases, however, each scale is considered discrete and little emphasis is placed on incorporating or measuring the responses of wildlife to resources across multiple scales.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62223c7658e40bba3c594076b70ab75c
https://doi.org/10.1007/s10980-004-0246-7
https://doi.org/10.1007/s10980-004-0246-7
Autor:
Stan Boutin, Mitchell K. Taylor, Robert Mulders, Robert J. Gau, Ray L. Case, H. Dean Cluff, François Messier, Philip D. McLoughlin
Publikováno v:
Canadian Journal of Zoology. 81:294-301
Between May 1995 and June 1999, we equipped 81 barren-ground grizzly bears (Ursus arctos) with satellite radio collars within a study area of 235 000 km2, centred 400 km northeast of Yellowknife, Northwest Territories, Canada. We used data from radio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0379651535dc05f2220f2b5dbb4839b3
https://doi.org/10.1139/z02-245
https://doi.org/10.1139/z02-245
Autor:
Dean H. Cluff, Robert Mulders, Ray L. Case, François Messier, Philip D. McLoughlin, Robert J. Gau
Publikováno v:
Oecologia. 132:102-108
Using resource selection functions, we examined habitat selection patterns of barren-ground grizzly bears (Ursus arctos) in the central Canadian Arctic among and within home ranges. There was no difference between the sexes with regard to habitat sel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0db41c55aa825936979afedc10ff2156
https://doi.org/10.1007/s00442-002-0941-5
https://doi.org/10.1007/s00442-002-0941-5
Autor:
Philip D. McLoughlin, Robert J. Gau, François Messier, H. Dean Cluff, Ray L. Case, Mitchell K. Taylor, Robert Mulders
Publikováno v:
ARCTIC. 56
We modelled probabilities of population decline as a function of annual kill for a population of barren-ground grizzly bears ( Ursus arctos ) inhabiting Nunavut and the Northwest Territories, Canada. Our results suggest that the population is at risk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1e3eb612b62b42e704ac9ff2d211d36
https://doi.org/10.14430/arctic614
https://doi.org/10.14430/arctic614
Publikováno v:
ARCTIC. 55
We collected 169 grizzly bear scats between 1994 and 1997 to determine the dietary habits of barren-ground grizzly bears ( Ursus arctos ) inhabiting Canada's central Arctic. From personal observations and fecal analysis, we concluded that barren-grou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c7548b485ac20f908243a41b5eb19cc
https://doi.org/10.14430/arctic717
https://doi.org/10.14430/arctic717
Autor:
Philip D. McLoughlin, H. Dean Cluff, Ray L. Case, Robert Mulders, Robert J. Gau, François Messier
Publikováno v:
The Canadian Field-Naturalist. 118:239
Between May 1995 and June 1999, we equipped eight subadult male (3-5 yrs old) Grizzly Bears (Ursus arctos) with satellite radio-collars within a study area of 235,000 km2, centred 400 km northeast of Yellowknife, Northwest Territories, Canada. Subadu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19c7f5e56fbd4a0e2862ce657730368c
https://doi.org/10.22621/cfn.v118i2.920
https://doi.org/10.22621/cfn.v118i2.920
Autor:
Ray L. Case, Robert J. Gau
Publikováno v:
The Journal of Wildlife Management. 63:286
The use of blood parameters to estimate nutritional condition of bears has yet to be validated with actual body compositions. We used bioeclectrical impedance analysis (BIA) to accurately estimate the body composition of a free-ranging population of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff2ea7e2e9e8092fcb817777f4e26093
https://doi.org/10.2307/3802511
https://doi.org/10.2307/3802511
Autor:
Chris J. Johnson, Mark S. Boyce, Robert Mulders, Anne Gunn, Rob J. Gau, H. Dean Cluff, Ray L. Case
Publikováno v:
Landscape Ecology; Nov2004, Vol. 19 Issue 8, p869-882, 14p
Autor:
Ron P. Graf, Ray L. Case
Publikováno v:
Canadian Journal of Zoology. 67:1112-1115
Muskoxen (Ovibos moschatus) are difficult to sample because they generally live in groups and the groups are distributed in a strongly contagious manner. We examined various techniques by first creating a physical model of the known distribution of m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98bb87797786e2e2a8a1ecbdc3939d99
https://doi.org/10.1139/z89-158
https://doi.org/10.1139/z89-158