Long-tailed Duck, Clangula hyemalis, Eider, Somateria spp., and Scoter, Melanitta spp., Distributions in Central Alaska Beaufort Sea Lagoons, 1999-2002
During July and August 1999–2002, distributions of Long-tailed Ducks (Clangula hyemalis), eiders (Somateria spp.) and scoters (Melanitta spp.) were documented in three barrier island-lagoon systems in the central Alaska Beaufort Sea. Concentration areas for each species were determined during 16 aer...
Published in: | The Canadian Field-Naturalist |
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Language: | English |
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The Ottawa Field-Naturalists' Club
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Online Access: | https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/103 https://doi.org/10.22621/cfn.v119i2.103 |
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ftjcfn:oai:canadianfieldnaturalist.ca:article/103 2024-09-15T17:58:22+00:00 Long-tailed Duck, Clangula hyemalis, Eider, Somateria spp., and Scoter, Melanitta spp., Distributions in Central Alaska Beaufort Sea Lagoons, 1999-2002 Noel, Lynn E. Johnson, Stephen R. O'Doherty, Gillian M. 2005-04-01 application/pdf https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/103 https://doi.org/10.22621/cfn.v119i2.103 eng eng The Ottawa Field-Naturalists' Club https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/103/103 https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/103 doi:10.22621/cfn.v119i2.103 The Canadian Field-Naturalist; Vol. 119 No. 2 (2005); 181-185 0008-3550 Clangula hyemalis Melanitta Somateria molt normal kernel density Arctic barrier island Alaska info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2005 ftjcfn https://doi.org/10.22621/cfn.v119i2.103 2024-08-06T03:02:00Z During July and August 1999–2002, distributions of Long-tailed Ducks (Clangula hyemalis), eiders (Somateria spp.) and scoters (Melanitta spp.) were documented in three barrier island-lagoon systems in the central Alaska Beaufort Sea. Concentration areas for each species were determined during 16 aerial surveys. Kernel density procedures were used to delineate 75% and 50% “activity” or concentration areas for all three species. Long-tailed Ducks were 13 times more numerous than eiders and 38 times more numerous than scoters. The Long-tailed Duck 75% activity area encompassed all three lagoon systems and was three times as large as the eider activity area and one-third larger than the scoter activity area. Eider activity areas were located only in the eastern lagoon, and scoter activity areas were located only in the western lagoon. Density contours showed patterns of repeated habitat use for sea ducks over the four years of sampling and improve our understanding of sea duck habitat use within Beaufort Sea barrier island-lagoon habitats. Article in Journal/Newspaper Beaufort Sea Alaska The Canadian Field-Naturalist The Canadian Field-Naturalist 119 2 181 |
institution |
Open Polar |
collection |
The Canadian Field-Naturalist |
op_collection_id |
ftjcfn |
language |
English |
topic |
Clangula hyemalis Melanitta Somateria molt normal kernel density Arctic barrier island Alaska |
spellingShingle |
Clangula hyemalis Melanitta Somateria molt normal kernel density Arctic barrier island Alaska Noel, Lynn E. Johnson, Stephen R. O'Doherty, Gillian M. Long-tailed Duck, Clangula hyemalis, Eider, Somateria spp., and Scoter, Melanitta spp., Distributions in Central Alaska Beaufort Sea Lagoons, 1999-2002 |
topic_facet |
Clangula hyemalis Melanitta Somateria molt normal kernel density Arctic barrier island Alaska |
description |
During July and August 1999–2002, distributions of Long-tailed Ducks (Clangula hyemalis), eiders (Somateria spp.) and scoters (Melanitta spp.) were documented in three barrier island-lagoon systems in the central Alaska Beaufort Sea. Concentration areas for each species were determined during 16 aerial surveys. Kernel density procedures were used to delineate 75% and 50% “activity” or concentration areas for all three species. Long-tailed Ducks were 13 times more numerous than eiders and 38 times more numerous than scoters. The Long-tailed Duck 75% activity area encompassed all three lagoon systems and was three times as large as the eider activity area and one-third larger than the scoter activity area. Eider activity areas were located only in the eastern lagoon, and scoter activity areas were located only in the western lagoon. Density contours showed patterns of repeated habitat use for sea ducks over the four years of sampling and improve our understanding of sea duck habitat use within Beaufort Sea barrier island-lagoon habitats. |
format |
Article in Journal/Newspaper |
author |
Noel, Lynn E. Johnson, Stephen R. O'Doherty, Gillian M. |
author_facet |
Noel, Lynn E. Johnson, Stephen R. O'Doherty, Gillian M. |
author_sort |
Noel, Lynn E. |
title |
Long-tailed Duck, Clangula hyemalis, Eider, Somateria spp., and Scoter, Melanitta spp., Distributions in Central Alaska Beaufort Sea Lagoons, 1999-2002 |
title_short |
Long-tailed Duck, Clangula hyemalis, Eider, Somateria spp., and Scoter, Melanitta spp., Distributions in Central Alaska Beaufort Sea Lagoons, 1999-2002 |
title_full |
Long-tailed Duck, Clangula hyemalis, Eider, Somateria spp., and Scoter, Melanitta spp., Distributions in Central Alaska Beaufort Sea Lagoons, 1999-2002 |
title_fullStr |
Long-tailed Duck, Clangula hyemalis, Eider, Somateria spp., and Scoter, Melanitta spp., Distributions in Central Alaska Beaufort Sea Lagoons, 1999-2002 |
title_full_unstemmed |
Long-tailed Duck, Clangula hyemalis, Eider, Somateria spp., and Scoter, Melanitta spp., Distributions in Central Alaska Beaufort Sea Lagoons, 1999-2002 |
title_sort |
long-tailed duck, clangula hyemalis, eider, somateria spp., and scoter, melanitta spp., distributions in central alaska beaufort sea lagoons, 1999-2002 |
publisher |
The Ottawa Field-Naturalists' Club |
publishDate |
2005 |
url |
https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/103 https://doi.org/10.22621/cfn.v119i2.103 |
genre |
Beaufort Sea Alaska |
genre_facet |
Beaufort Sea Alaska |
op_source |
The Canadian Field-Naturalist; Vol. 119 No. 2 (2005); 181-185 0008-3550 |
op_relation |
https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/103/103 https://www.canadianfieldnaturalist.ca/index.php/cfn/article/view/103 doi:10.22621/cfn.v119i2.103 |
op_doi |
https://doi.org/10.22621/cfn.v119i2.103 |
container_title |
The Canadian Field-Naturalist |
container_volume |
119 |
container_issue |
2 |
container_start_page |
181 |
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1810434758271827968 |