Zobrazeno 1 - 10
of 250
pro vyhledávání: '"Andrew E Derocher"'
Publikováno v:
PLoS ONE, Vol 14, Iss 4, p e0215519 (2019)
The abundance of ungulate populations may fluctuate in response to several limiting factors, including climate, diseases, and predation. In the northern Richardson Mountains, Canada, Dall sheep (Ovis dalli dalli) have undergone a major decline in the
Externí odkaz:
https://doaj.org/article/2b9ee73ca3f64f15bf78a5b877995eba
Publikováno v:
Arctic Science, Vol 10, Iss 3, Pp 483-498 (2024)
Environmental variability and seasonality of resources influence species distribution and demographic parameters such as survival. We quantified the spatiotemporal dynamics of sea ice that remains in Hudson Bay during break-up (remnant ice) and asses
Externí odkaz:
https://doaj.org/article/f8978b6e99de4ef5a8d8d2d5997aa6e8
Autor:
Tyler R. Ross, Gregory W. Thiemann, B. J. Kirschhoffer, Jon Kirschhoffer, Geoff York, Andrew E. Derocher, Amy C. Johnson, Nicholas J. Lunn, David McGeachy, Vicki Trim, Joseph M. Northrup
Publikováno v:
Animal Biotelemetry, Vol 12, Iss 1, Pp 1-15 (2024)
Abstract The study of animal movement provides insights into underlying ecological processes and informs analyses of behaviour and resource use, which have implications for species management and conservation. The tools used to study animal movement
Externí odkaz:
https://doaj.org/article/a286913a063549bd92ad10a5aa0f9c15
Autor:
Elizabeth Peacock, Sarah A Sonsthagen, Martyn E Obbard, Andrei Boltunov, Eric V Regehr, Nikita Ovsyanikov, Jon Aars, Stephen N Atkinson, George K Sage, Andrew G Hope, Eve Zeyl, Lutz Bachmann, Dorothee Ehrich, Kim T Scribner, Steven C Amstrup, Stanislav Belikov, Erik W Born, Andrew E Derocher, Ian Stirling, Mitchell K Taylor, Øystein Wiig, David Paetkau, Sandra L Talbot
Publikováno v:
PLoS ONE, Vol 10, Iss 1, p e112021 (2015)
We provide an expansive analysis of polar bear (Ursus maritimus) circumpolar genetic variation during the last two decades of decline in their sea-ice habitat. We sought to evaluate whether their genetic diversity and structure have changed over this
Externí odkaz:
https://doaj.org/article/bc0619d961ce4e5ab3f6da8ab9481bcb
Autor:
Elizabeth Peacock, Sarah A Sonsthagen, Martyn E Obbard, Andrei Boltunov, Eric V Regehr, Nikita Ovsyanikov, Jon Aars, Stephen N Atkinson, George K Sage, Andrew G Hope, Eve Zeyl, Lutz Bachmann, Dorothee Ehrich, Kim T Scribner, Steven C Amstrup, Stanislav Belikov, Erik W Born, Andrew E Derocher, Ian Stirling, Mitchell K Taylor, Øystein Wiig, David Paetkau, Sandra L Talbo
Publikováno v:
PLoS ONE, Vol 10, Iss 8, p e0136126 (2015)
Externí odkaz:
https://doaj.org/article/f69e88123fd94878b6b5a160c2ee8acc
Publikováno v:
PLoS ONE, Vol 9, Iss 1, p e85410 (2014)
Allee effects are an important component in the population dynamics of numerous species. Accounting for these Allee effects in population viability analyses generally requires estimates of low-density population growth rates, but such data are unavai
Externí odkaz:
https://doaj.org/article/6518f4e60136428cb2b3c14aea4afff4
Autor:
Stephen G Hamilton, Laura Castro de la Guardia, Andrew E Derocher, Vicki Sahanatien, Bruno Tremblay, David Huard
Publikováno v:
PLoS ONE, Vol 9, Iss 11, p e113746 (2014)
Sea ice across the Arctic is declining and altering physical characteristics of marine ecosystems. Polar bears (Ursus maritimus) have been identified as vulnerable to changes in sea ice conditions. We use sea ice projections for the Canadian Arctic A
Externí odkaz:
https://doaj.org/article/4de75c5617064611875f0c8a6d8c334a
Publikováno v:
PLoS ONE, Vol 9, Iss 7, p e101495 (2014)
Climate change is occurring more rapidly in the Arctic than other places in the world, which is likely to alter the distribution and abundance of migratory birds breeding there. A warming climate can provide benefits to birds by decreasing spring sno
Externí odkaz:
https://doaj.org/article/98e3a78eddfd42519537076693d80091
Publikováno v:
Arctic Science (2024)
Seasonal migrations allow access to temporally varying resources and individuals may show fidelity to specific locations, red particularly for important life processes such as reproduction. Polar bears (Ursus maritimus) are a sea ice dependent specie
Externí odkaz:
https://doaj.org/article/acdd9f00103a4c8083ab934c76662a18
Autor:
Peter R. Thompson, Peter D. Harrington, Conor D. Mallory, Subhash R. Lele, Erin M. Bayne, Andrew E. Derocher, Mark A. Edwards, Mitch Campbell, Mark A. Lewis
Publikováno v:
Movement Ecology, Vol 12, Iss 1, Pp 1-18 (2024)
Abstract Background Animals of many different species, trophic levels, and life history strategies migrate, and the improvement of animal tracking technology allows ecologists to collect increasing amounts of detailed data on these movements. Underst
Externí odkaz:
https://doaj.org/article/abe92e9399d44ad9b6e9662484080752