To Winter East or West? Heterogeneity in Winter Philopatry in a Central-Arctic Population of King Eiders
Abstract We used banding data from King Eiders (Somateria spectabilis) at Karrak Lake, Nunavut, Canada, during 2001 and 2002 in conjunction with analysis of naturally occurring stable isotopes (13C, 15N) from feathers to connect winter and breeding areas of individuals. We also investigated the occu...
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Online Access: | http://dx.doi.org/10.1093/condor/106.2.241 http://academic.oup.com/condor/article-pdf/106/2/241/29713757/condor0241.pdf |
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croxfordunivpr:10.1093/condor/106.2.241 2023-09-26T15:14:43+02:00 To Winter East or West? Heterogeneity in Winter Philopatry in a Central-Arctic Population of King Eiders Mehl, Katherine R. Alisauskas, Ray T. Hobson, Keith A. Kellett, Dana K. 2004 http://dx.doi.org/10.1093/condor/106.2.241 http://academic.oup.com/condor/article-pdf/106/2/241/29713757/condor0241.pdf en eng Oxford University Press (OUP) The Condor volume 106, issue 2, page 241-251 ISSN 0010-5422 1938-5129 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2004 croxfordunivpr https://doi.org/10.1093/condor/106.2.241 2023-08-25T11:37:38Z Abstract We used banding data from King Eiders (Somateria spectabilis) at Karrak Lake, Nunavut, Canada, during 2001 and 2002 in conjunction with analysis of naturally occurring stable isotopes (13C, 15N) from feathers to connect winter and breeding areas of individuals. We also investigated the occurrence of winter philopatry among nesting females, and examined cross-seasonal effects of wintering area on subsequent breeding. Isotopic data suggested that 66–73% of this central-arctic breeding population wintered to the west (i.e., Bering Sea and North Pacific) and the remaining 24–37% wintered to the east (i.e., west Greenland, northwest Atlantic). In contrast, limited band recoveries from hunter-killed King Eiders marked at the same breeding location suggested that about 56% of individuals were shot in eastern wintering areas. These differences likely reflect stronger hunting pressures along the coast of Greenland, which result in more band recoveries for this area. Our results suggest that female King Eiders were not strongly philopatric to wintering areas among years. Individuals that wintered in western seas initiated nests 1.9 days earlier and had slightly larger clutches during early initiation relative to females that wintered in the east. Nest parasitism appeared to be biased toward earlier nesters, many of which wintered in the west. Female condition during incubation did not vary by wintering area. Our results have important implications for gene flow and for potentially associating wintering-area conditions with overall demography and individual fitness of King Eiders. ¿Pasar el Invierno en el Este o en el Oeste? Heterogeneidad en la Filopatría al Sitio de Invernada en una Población de Somateria spectabilis del Ártico Central Resumen. Para conectar las áreas de invernada con las de reproducción en la especie Somateria spectabilis, utilizamos datos de aves anilladas durante 2001 y 2002 en Karrak Lake, Nunavut, Canadá, junto con análisis de isotópos estables que se encuentran en la naturaleza y en las ... Article in Journal/Newspaper Arctic Arctic Population Ártico central Bering Sea Central Arctic Greenland Northwest Atlantic Nunavut Somateria spectabilis Oxford University Press (via Crossref) Arctic Nunavut Bering Sea Canada Greenland Pacific Invierno ENVELOPE(-64.267,-64.267,-65.267,-65.267) Karrak Lake ENVELOPE(-100.250,-100.250,67.250,67.250) The Condor 106 2 241 251 |
institution |
Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Mehl, Katherine R. Alisauskas, Ray T. Hobson, Keith A. Kellett, Dana K. To Winter East or West? Heterogeneity in Winter Philopatry in a Central-Arctic Population of King Eiders |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Abstract We used banding data from King Eiders (Somateria spectabilis) at Karrak Lake, Nunavut, Canada, during 2001 and 2002 in conjunction with analysis of naturally occurring stable isotopes (13C, 15N) from feathers to connect winter and breeding areas of individuals. We also investigated the occurrence of winter philopatry among nesting females, and examined cross-seasonal effects of wintering area on subsequent breeding. Isotopic data suggested that 66–73% of this central-arctic breeding population wintered to the west (i.e., Bering Sea and North Pacific) and the remaining 24–37% wintered to the east (i.e., west Greenland, northwest Atlantic). In contrast, limited band recoveries from hunter-killed King Eiders marked at the same breeding location suggested that about 56% of individuals were shot in eastern wintering areas. These differences likely reflect stronger hunting pressures along the coast of Greenland, which result in more band recoveries for this area. Our results suggest that female King Eiders were not strongly philopatric to wintering areas among years. Individuals that wintered in western seas initiated nests 1.9 days earlier and had slightly larger clutches during early initiation relative to females that wintered in the east. Nest parasitism appeared to be biased toward earlier nesters, many of which wintered in the west. Female condition during incubation did not vary by wintering area. Our results have important implications for gene flow and for potentially associating wintering-area conditions with overall demography and individual fitness of King Eiders. ¿Pasar el Invierno en el Este o en el Oeste? Heterogeneidad en la Filopatría al Sitio de Invernada en una Población de Somateria spectabilis del Ártico Central Resumen. Para conectar las áreas de invernada con las de reproducción en la especie Somateria spectabilis, utilizamos datos de aves anilladas durante 2001 y 2002 en Karrak Lake, Nunavut, Canadá, junto con análisis de isotópos estables que se encuentran en la naturaleza y en las ... |
format |
Article in Journal/Newspaper |
author |
Mehl, Katherine R. Alisauskas, Ray T. Hobson, Keith A. Kellett, Dana K. |
author_facet |
Mehl, Katherine R. Alisauskas, Ray T. Hobson, Keith A. Kellett, Dana K. |
author_sort |
Mehl, Katherine R. |
title |
To Winter East or West? Heterogeneity in Winter Philopatry in a Central-Arctic Population of King Eiders |
title_short |
To Winter East or West? Heterogeneity in Winter Philopatry in a Central-Arctic Population of King Eiders |
title_full |
To Winter East or West? Heterogeneity in Winter Philopatry in a Central-Arctic Population of King Eiders |
title_fullStr |
To Winter East or West? Heterogeneity in Winter Philopatry in a Central-Arctic Population of King Eiders |
title_full_unstemmed |
To Winter East or West? Heterogeneity in Winter Philopatry in a Central-Arctic Population of King Eiders |
title_sort |
to winter east or west? heterogeneity in winter philopatry in a central-arctic population of king eiders |
publisher |
Oxford University Press (OUP) |
publishDate |
2004 |
url |
http://dx.doi.org/10.1093/condor/106.2.241 http://academic.oup.com/condor/article-pdf/106/2/241/29713757/condor0241.pdf |
long_lat |
ENVELOPE(-64.267,-64.267,-65.267,-65.267) ENVELOPE(-100.250,-100.250,67.250,67.250) |
geographic |
Arctic Nunavut Bering Sea Canada Greenland Pacific Invierno Karrak Lake |
geographic_facet |
Arctic Nunavut Bering Sea Canada Greenland Pacific Invierno Karrak Lake |
genre |
Arctic Arctic Population Ártico central Bering Sea Central Arctic Greenland Northwest Atlantic Nunavut Somateria spectabilis |
genre_facet |
Arctic Arctic Population Ártico central Bering Sea Central Arctic Greenland Northwest Atlantic Nunavut Somateria spectabilis |
op_source |
The Condor volume 106, issue 2, page 241-251 ISSN 0010-5422 1938-5129 |
op_doi |
https://doi.org/10.1093/condor/106.2.241 |
container_title |
The Condor |
container_volume |
106 |
container_issue |
2 |
container_start_page |
241 |
op_container_end_page |
251 |
_version_ |
1778135575165927424 |