Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Julian B. Fischer"'
Autor:
Emily L. Weiser, Paul L. Flint, Dennis K. Marks, Brad S. Shults, Heather M. Wilson, Sarah J. Thompson, Julian B. Fischer
Publikováno v:
Wildlife Society Bulletin, Vol 47, Iss 1, Pp n/a-n/a (2023)
Abstract Ocular aerial surveys allow efficient coverage of large areas and can be used to monitor abundance and distribution of wild populations. However, uncertainty around resulting population estimates can be large due to difficulty in visually id
Externí odkaz:
https://doaj.org/article/b472b51bf811489894fb4621e64e124d
Autor:
Courtney L. Amundson, Paul L. Flint, Robert A. Stehn, Robert M. Platte, Heather M. Wilson, William W. Larned, Julian B. Fischer
Publikováno v:
Avian Conservation and Ecology, Vol 14, Iss 1, p 18 (2019)
Rapid physical changes that are occurring in the Arctic are primary drivers of landscape change and thus may drive population dynamics of Arctic-breeding birds. Despite the importance of this region to breeding and molting waterbirds, lack of a compr
Externí odkaz:
https://doaj.org/article/96687d8230f74436b7ef3c1ad2dfa8cf
Autor:
Emily L. Weiser, Paul L. Flint, Dennis K. Marks, Brad S. Shults, Heather M. Wilson, Sarah J. Thompson, Julian B. Fischer
Publikováno v:
Wildlife Society Bulletin. 47
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fdcc1d2c1ba5e97bc3ece963519fba5
https://doi.org/10.1002/wsb.1407
https://doi.org/10.1002/wsb.1407
Publikováno v:
The Journal of Wildlife Management. 87
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::750bcd2702dcb8221051ec9b555952f3
https://doi.org/10.1002/jwmg.22334
https://doi.org/10.1002/jwmg.22334
Publikováno v:
Journal of Fish and Wildlife Management. 11:112-120
The number of black brant Branta bernicla nigricans nests within major breeding colonies on the Yukon-Kuskowkim Delta has declined since 1992. It has been hypothesized that these declines are partially explained by increased numbers of black brant br
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0aeb1916c0f9b6147dbea687bb7e47f6
https://doi.org/10.3996/052019-jfwm-037
https://doi.org/10.3996/052019-jfwm-037
Publikováno v:
Endangered Species Research, Vol 39, Pp 191-206 (2019)
Listed as ‘threatened’ under the US Endangered Species Act in 1993, the spectacled eider Somateria fischeri population in western Alaska, USA, has since rebounded, prompting an assessment of their suitability for delisting. This assessment, howev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aea53434f8705e6ae8f5cedeff82aaf6
https://www.int-res.com/abstracts/esr/v39/p191-206/
https://www.int-res.com/abstracts/esr/v39/p191-206/
Publikováno v:
PLoS ONE, Vol 16, Iss 7, p e0253895 (2021)
PLoS ONE
PLoS ONE
Assessing species status and making classification decisions under the Endangered Species Act is a critical step towards effective species conservation. However, classification decisions are liable to two errors: i) failing to classify a species as t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d50e769a6ad8a93cf40e1ae23a374bfb
https://doaj.org/article/fb688ca71ad94f979c1972e68c67170c
https://doaj.org/article/fb688ca71ad94f979c1972e68c67170c
Autor:
Douglas Causey, Julian B. Fischer, Jeffrey M. Welker, Wade G. Schock, Craig R. Ely, Robert A. Stehn
Publikováno v:
Journal of Fish and Wildlife Management. 9:340-347
Annual productivity is an important parameter for the management of waterfowl populations. Fall age ratio (juveniles:total birds) is an index of productivity of the preceding breeding season. However, differences in the timing of migration between fa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a660fa238008c631fcb9f36d634235f9
https://doi.org/10.3996/112015-jfwm-117
https://doi.org/10.3996/112015-jfwm-117
Publikováno v:
The Journal of Wildlife Management. 81:1468-1481
The Yukon–Kuskokwim Delta of Alaska, USA is a globally important region for numerous avian species including millions of migrating and nesting waterbirds. However, data on the current spatial distribution of critical nesting areas and the importanc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1639fdf0dbc75f13b510e649ce5b2d7
https://doi.org/10.1002/jwmg.21322
https://doi.org/10.1002/jwmg.21322
Autor:
Heather M. Wilson, Julian B. Fischer, Robert A. Stehn, William W. Larned, Paul L. Flint, Robert M. Platte, Courtney L. Amundson
Publikováno v:
Avian Conservation and Ecology, Vol 14, Iss 1, p 18 (2019)
Rapid physical changes that are occurring in the Arctic are primary drivers of landscape change and thus may drive population dynamics of Arctic-breeding birds. Despite the importance of this region to breeding and molting waterbirds, lack of a compr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a32e49f76ea5df2d401fa46fd53d2508
http://www.ace-eco.org/vol14/iss1/art18/
http://www.ace-eco.org/vol14/iss1/art18/