Distribution, abundance and reaction to aerial surveys of post-breeding king eiders (Somateria spectabilis) in western Greenland. Arctic 52(2):188–203
ABSTRACT. Moulting and post-breeding king eiders in western Greenland were surveyed in late August and early September of 1993, 1994, and 1995. We counted all eiders observed during fixed-winged aircraft flights along coastlines and offshore transects. The coastline in the survey area is roughly 134...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.595.6629 2023-05-15T14:19:39+02:00 Distribution, abundance and reaction to aerial surveys of post-breeding king eiders (Somateria spectabilis) in western Greenland. Arctic 52(2):188–203 Anders Mosbech David Boertmann The Pennsylvania State University CiteSeerX Archives 1999 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.595.6629 http://pubs.aina.ucalgary.ca/arctic/Arctic52-2-188.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.595.6629 http://pubs.aina.ucalgary.ca/arctic/Arctic52-2-188.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://pubs.aina.ucalgary.ca/arctic/Arctic52-2-188.pdf Key words king eider Somateria spectabilis moulting areas abundance aerial surveys disturbance western Greenland text 1999 ftciteseerx 2016-01-08T13:43:26Z ABSTRACT. Moulting and post-breeding king eiders in western Greenland were surveyed in late August and early September of 1993, 1994, and 1995. We counted all eiders observed during fixed-winged aircraft flights along coastlines and offshore transects. The coastline in the survey area is roughly 13400 km long, and our flightlines totaled approximately 16 500 km. The areas optimal for the birds were covered fully several times; in less suitable areas, only a fraction of the coastline was covered. Using the largest count for coastlines covered more than once, we counted a total of 22 980 king eiders. Large numbers of king eiders were observed at a number of remote localities on the west coast of Disko Island and in southern Upernavik. At localities considered to have frequent human disturbance, few birds were observed. Highest densities were found along coasts with sandy or muddy areas at the shorelines. Overall we estimate that 30000 to 40 000 king eiders reside in the coastal zone of western Greenland in late August. Even allowing for a high turnover rate, as different individuals may occupy the moulting areas during the extended period from July to October, this figure can account for only half of a 1950s estimate that 200 000 males and immatures were moulting in western Greenland. Text Arctic Arctic Greenland King Eider Somateria spectabilis Upernavik Unknown Arctic Greenland |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
Key words king eider Somateria spectabilis moulting areas abundance aerial surveys disturbance western Greenland |
spellingShingle |
Key words king eider Somateria spectabilis moulting areas abundance aerial surveys disturbance western Greenland Anders Mosbech David Boertmann Distribution, abundance and reaction to aerial surveys of post-breeding king eiders (Somateria spectabilis) in western Greenland. Arctic 52(2):188–203 |
topic_facet |
Key words king eider Somateria spectabilis moulting areas abundance aerial surveys disturbance western Greenland |
description |
ABSTRACT. Moulting and post-breeding king eiders in western Greenland were surveyed in late August and early September of 1993, 1994, and 1995. We counted all eiders observed during fixed-winged aircraft flights along coastlines and offshore transects. The coastline in the survey area is roughly 13400 km long, and our flightlines totaled approximately 16 500 km. The areas optimal for the birds were covered fully several times; in less suitable areas, only a fraction of the coastline was covered. Using the largest count for coastlines covered more than once, we counted a total of 22 980 king eiders. Large numbers of king eiders were observed at a number of remote localities on the west coast of Disko Island and in southern Upernavik. At localities considered to have frequent human disturbance, few birds were observed. Highest densities were found along coasts with sandy or muddy areas at the shorelines. Overall we estimate that 30000 to 40 000 king eiders reside in the coastal zone of western Greenland in late August. Even allowing for a high turnover rate, as different individuals may occupy the moulting areas during the extended period from July to October, this figure can account for only half of a 1950s estimate that 200 000 males and immatures were moulting in western Greenland. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Anders Mosbech David Boertmann |
author_facet |
Anders Mosbech David Boertmann |
author_sort |
Anders Mosbech |
title |
Distribution, abundance and reaction to aerial surveys of post-breeding king eiders (Somateria spectabilis) in western Greenland. Arctic 52(2):188–203 |
title_short |
Distribution, abundance and reaction to aerial surveys of post-breeding king eiders (Somateria spectabilis) in western Greenland. Arctic 52(2):188–203 |
title_full |
Distribution, abundance and reaction to aerial surveys of post-breeding king eiders (Somateria spectabilis) in western Greenland. Arctic 52(2):188–203 |
title_fullStr |
Distribution, abundance and reaction to aerial surveys of post-breeding king eiders (Somateria spectabilis) in western Greenland. Arctic 52(2):188–203 |
title_full_unstemmed |
Distribution, abundance and reaction to aerial surveys of post-breeding king eiders (Somateria spectabilis) in western Greenland. Arctic 52(2):188–203 |
title_sort |
distribution, abundance and reaction to aerial surveys of post-breeding king eiders (somateria spectabilis) in western greenland. arctic 52(2):188–203 |
publishDate |
1999 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.595.6629 http://pubs.aina.ucalgary.ca/arctic/Arctic52-2-188.pdf |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Arctic Greenland King Eider Somateria spectabilis Upernavik |
genre_facet |
Arctic Arctic Greenland King Eider Somateria spectabilis Upernavik |
op_source |
http://pubs.aina.ucalgary.ca/arctic/Arctic52-2-188.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.595.6629 http://pubs.aina.ucalgary.ca/arctic/Arctic52-2-188.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766291431578664960 |