Zobrazeno 1 - 10
of 44
pro vyhledávání: '"William R Koski"'
Autor:
Sarah M E Fortune, William R Koski, Jeff W Higdon, Andrew W Trites, Mark F Baumgartner, Steven H Ferguson
Publikováno v:
PLoS ONE, Vol 13, Iss 2, p e0192813 (2018)
[This corrects the article DOI: 10.1371/journal.pone.0186156.].
Externí odkaz:
https://doaj.org/article/76d1427c12cf4b8a9e8381af3a34b138
Autor:
Sarah M E Fortune, William R Koski, Jeff W Higdon, Andrew W Trites, Mark F Baumgartner, Steven H Ferguson
Publikováno v:
PLoS ONE, Vol 12, Iss 11, p e0186156 (2017)
Bowhead whales (Balaena mysticetus) have a nearly circumpolar distribution, and occasionally occupy warmer shallow coastal areas during summertime that may facilitate molting. However, relatively little is known about the occurrence of molting and as
Externí odkaz:
https://doaj.org/article/ac64b17e4f4e4ae3ba725b77b84e9465
Publikováno v:
NAMMCO Scientific Publications, Vol 9, Iss 0, Pp 95-122 (2014)
Surveys to estimate walrus abundance at terrestrial haulout sites in the Penny Strait-Lancaster Sound (PS-LS) and West Jones Sound (WJS) stocks were conducted in 1977 and 1998-2009. The Minimum Counted Population (MCP) was similar in 1977 (565) to re
Externí odkaz:
https://doaj.org/article/55d236dc67064da0a5779028ccc1d2de
Autor:
William R Koski, Kerwin J Finley
Publikováno v:
NAMMCO Scientific Publications, Vol 4, Iss 0, Pp 87-126 (2002)
We conducted >236,000 km of aerial surveys and some supplementary studies of belugas (Delphinapterus leucas) in the central and eastern Canadian High Arctic in 974-79. Belugas that wintered in the “North Water” in Baffin Bay moved southwest into
Externí odkaz:
https://doaj.org/article/adae22b2884041c197feb9830d104d2c
Autor:
Kasey P. Ryan, Steven H. Ferguson, William R. Koski, Brent G. Young, James D. Roth, Cortney A. Watt
Publikováno v:
Arctic Science, Vol 8, Iss 4, Pp 1191-1201 (2022)
Photographic identification is increasingly being used as a cost-effective and minimally invasive method to monitor species, which is of particular importance for endangered populations that are vulnerable to intrusive research methods. The purpose o
Externí odkaz:
https://doaj.org/article/149f0a31f0224b69895e73014fa03530
Autor:
William R. Koski, Brent G. Young
Publikováno v:
Drone Systems and Applications, Vol 10, Iss 1, Pp 15-25 (2022)
Effective management of animal populations requires knowledge of life history parameters and estimates of population abundance. One method commonly used to estimate abundance is capture–recapture analyses of photographs. Small, relatively inexpensi
Externí odkaz:
https://doaj.org/article/09a6628cc65c48f28b9fb1ce05d65fda
Autor:
Brent G. Young, William R. Koski, Ricky Kilabuk, Cortney A. Watt, Kasey P. Ryan, Steven H. Ferguson
Publikováno v:
Drone Systems and Applications, Vol 10, Iss 1, Pp 256-265 (2022)
In conducting Arctic field research, hiring local field guides has long been a necessity for providing field teams with local knowledge and fundamental needs of boat operation and navigation, general field logistics/safety, and traditional ecological
Externí odkaz:
https://doaj.org/article/abd9a38b20904567b0f859b7b7e9570d
Publikováno v:
J. Cetacean Res. Manage.. 7:33-37
Kaktovik is a small community located on Barter Island in the extreme northeast of Alaska. The bowhead whale hunt is important to the community from both an economic and cultural perspective. Harvests were generally 1-2 bowheads per year in 1973-1988
Publikováno v:
J. Cetacean Res. Manage.. 8:139-144
Satellite tracking studies of bowhead whales (Balaena mysticetus) in West Greenland and the eastern Canadian Arctic have documented that Hudson Strait is an important wintering ground for animals summering in the Baffin Bay-Davis Strait area and the
Publikováno v:
J. Cetacean Res. Manage.. 10:195-200
As a part of a review of bowhead whale (Balaena mysticetus) stocks, a study was conducted to evaluate how much mixing occurs in the whales’spring migration, a period which immediately follows the mating season. This study has used aerial photograph