Zobrazeno 1 - 10
of 162
pro vyhledávání: '"David C. Douglas"'
Autor:
Bruce G. Marcot, Todd C. Atwood, David C. Douglas, Jeffrey F. Bromaghin, Anthony M. Pagano, Steven C. Amstrup
Publikováno v:
Ecological Indicators, Vol 156, Iss , Pp 111130- (2023)
Updating predictions of the response of high-profile, at-risk species to climate change and anthropogenic stressors is vital for informing effective conservation action. Here, we review two prior generations of Bayesian network probability models pre
Externí odkaz:
https://doaj.org/article/1313f571458d474ea33243419b5fcf60
Publikováno v:
Ecosphere, Vol 14, Iss 2, Pp n/a-n/a (2023)
Abstract Some animal species are responding to climate change by altering the timing of events like mating and migration. Such behavioral plasticity can be adaptive, but it is not always. Polar bears (Ursus maritimus) from the southern Beaufort Sea s
Externí odkaz:
https://doaj.org/article/8e847030a8d24a7c947b6349f6bd4651
Publikováno v:
Ecology and Evolution, Vol 11, Iss 20, Pp 14250-14267 (2021)
Abstract The Arctic Ocean is undergoing rapid transformation toward a seasonally ice‐free ecosystem. As ice‐adapted apex predators, polar bears (Ursus maritimus) are challenged to cope with ongoing habitat degradation and changes in their prey ba
Externí odkaz:
https://doaj.org/article/6219cacedb1a4f078da5b1c357953ec0
Publikováno v:
Ecology and Evolution, Vol 10, Iss 12, Pp 5595-5616 (2020)
Abstract Continued Arctic warming and sea‐ice loss will have important implications for the conservation of ringed seals, a highly ice‐dependent species. A better understanding of their spatial ecology will help characterize emerging ecological t
Externí odkaz:
https://doaj.org/article/e2ac23a2bfcb4555bb2d873f1738308e
Autor:
Todd C. Atwood, Karyn D. Rode, David C. Douglas, Kristin Simac, Anthony M. Pagano, Jeffrey F. Bromaghin
Publikováno v:
Global Ecology and Conservation, Vol 32, Iss , Pp e01925- (2021)
In the Arctic, warming air and ocean temperatures have resulted in substantial changes to sea ice, which is primary habitat for polar bears (Ursus maritimus). Reductions in extent, duration, and thickness have altered sea ice dynamics, which influenc
Externí odkaz:
https://doaj.org/article/78c85dfa41f34aff9bfd427505752144
Publikováno v:
Ecosphere, Vol 12, Iss 10, Pp n/a-n/a (2021)
Abstract Animals responding to habitat loss and fragmentation may increase their home ranges to offset declines in localized resources or they may decrease their home ranges and switch to alternative resources. In many regions of the Arctic, polar be
Externí odkaz:
https://doaj.org/article/f1f5bd872e6340ef895901b76fb5f449
Publikováno v:
Ecology and Evolution, Vol 9, Iss 15, Pp 8625-8638 (2019)
Abstract Greenhouse‐gas‐induced warming in the Arctic has caused declines in sea ice extent and changed its composition, raising concerns by all circumpolar nations for polar bear conservation. Negative impacts have been observed in three well‐
Externí odkaz:
https://doaj.org/article/ee3c91443ad54c9fabbf58c55f9abd97
Autor:
Sharon A. Poessel, Brian D. Uher-Koch, John M. Pearce, Joel A. Schmutz, Autumn-Lynn Harrison, David C. Douglas, Vanessa R. von Biela, Todd E. Katzner
Publikováno v:
Global Ecology and Conservation, Vol 22, Iss , Pp - (2020)
Oil and gas development in the Arctic Coastal Plain, Alaska, may pose threats to wildlife. Management guidelines within the National Petroleum Reserve-Alaska dictate buffer zones for coastal wildlife habitat and for breeding and foraging sites of yel
Externí odkaz:
https://doaj.org/article/8ccaf47e29f1440ea8d3207420d05d8b
Autor:
Anthony S. Fischbach, David C. Douglas
Publikováno v:
Remote Sensing, Vol 13, Iss 21, p 4266 (2021)
Pacific walruses (Odobenus rosmarus divergens) are using coastal haulouts in the Chukchi Sea more often and in larger numbers to rest between foraging bouts in late summer and autumn in recent years, because climate warming has reduced availability o
Externí odkaz:
https://doaj.org/article/984922368d7e43c192c1685a37b47962
Autor:
Scott H. Newman, Yongdong Li, Tianxian Li, Fumin Lei, Yuansheng Hou, Luo Ze, Baoping Yan, William M. Perry, David C. Douglas, John Y. Takekawa, Diann J. Prosser, Bridget M. Collins
Publikováno v:
Viruses, Vol 5, Iss 9, Pp 2129-2152 (2013)
Highly pathogenic avian influenza H5N1 remains a serious concern for both poultry and human health. Wild waterfowl are considered to be the reservoir for low pathogenic avian influenza viruses; however, relatively little is known about their movement
Externí odkaz:
https://doaj.org/article/d5a39c051b3f40b694fe37435c1fa659