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rft.atitle Insights into Wilson's Warbler Migration from Analyses of Hydrogen Stable-Isotope Ratios
rft.epage 221
rft.genre article
rft.issn 0029-8549
1432-1939
rft.issue 2
rft.jtitle Oecologia
rft.tpages 5
rft.pages 216-221
rft.pub Springer-Verlag
rft.date 2002-01-01
x.date 2002-01-01T00:00:00Z
rft.spage 216
rft.volume 130
abstract <p> Our ability to link the breeding locations of individual passerines to migration stopover sites and wintering locations is limited. Stable isotopes of hydrogen contained in bird feathers have recently shown potential in this regard. We measured hydrogen stable-isotope ratios (δD) of feathers from breeding, migrating, and wintering Wilson's Warblers. Analyses of feathers from museum specimens collected throughout the western portion of the breeding range indicate that δD values are significantly negatively related to latitude of collection (R<sup>2</sup>=0.52), which is an indication that δD values are a good descriptor of breeding latitude. Analyses of feathers collected from birds migrating through the Bosque del Apache National Wildlife Refuge, New Mexico (USA), revealed a significantly positive relationship between δD values and the timing of autumn migration (R<sup>2</sup>=0.34), but not the timing of spring migration. This pattern indicates that Wilson's Warblers that bred furthest north migrated earliest in the autumn. Finally, analysis of feathers collected on the wintering grounds indicate that the hydrogen isotope ratio is significantly positively related to wintering latitude (R<sup>2</sup>=0.80), which indicates that birds that bred furthest north wintered furthest south. In combination, these patterns suggest that in the western portion of their range, Wilson's Warblers have a leapfrog migration system in which the northern-most breeding birds pass through New Mexico early in the autumn to arrive on the wintering grounds in southern Central America, the southern edge of the Wilson's Warblers winter range. We know of no other literature documenting or suggesting that Wilson's Warbler engage in leapfrog migration. We think the novelty of these results is a reflection of the potential for stable-isotope techniques to revise our understanding of bird migration. </p>
authors Array ( [rft.aulast] => Kelly [rft.aufirst] => Jeffrey F. )
Array ( )
Array ( [rft.aulast] => Sharp [rft.aufirst] => Zachary D. )
Array ( [rft.aulast] => Finch [rft.aufirst] => Deborah M. )
languages eng
url https://www.jstor.org/stable/4223159
version 0.9
x.subjects Population Ecology
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author Kelly, Jeffrey F., Sharp, Zachary D., Finch, Deborah M.
author_facet Kelly, Jeffrey F., Sharp, Zachary D., Finch, Deborah M., Kelly, Jeffrey F., Sharp, Zachary D., Finch, Deborah M.
author_sort kelly, jeffrey f.
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container_issue 2
container_start_page 216
container_title Oecologia
container_volume 130
description <p> Our ability to link the breeding locations of individual passerines to migration stopover sites and wintering locations is limited. Stable isotopes of hydrogen contained in bird feathers have recently shown potential in this regard. We measured hydrogen stable-isotope ratios (δD) of feathers from breeding, migrating, and wintering Wilson's Warblers. Analyses of feathers from museum specimens collected throughout the western portion of the breeding range indicate that δD values are significantly negatively related to latitude of collection (R<sup>2</sup>=0.52), which is an indication that δD values are a good descriptor of breeding latitude. Analyses of feathers collected from birds migrating through the Bosque del Apache National Wildlife Refuge, New Mexico (USA), revealed a significantly positive relationship between δD values and the timing of autumn migration (R<sup>2</sup>=0.34), but not the timing of spring migration. This pattern indicates that Wilson's Warblers that bred furthest north migrated earliest in the autumn. Finally, analysis of feathers collected on the wintering grounds indicate that the hydrogen isotope ratio is significantly positively related to wintering latitude (R<sup>2</sup>=0.80), which indicates that birds that bred furthest north wintered furthest south. In combination, these patterns suggest that in the western portion of their range, Wilson's Warblers have a leapfrog migration system in which the northern-most breeding birds pass through New Mexico early in the autumn to arrive on the wintering grounds in southern Central America, the southern edge of the Wilson's Warblers winter range. We know of no other literature documenting or suggesting that Wilson's Warbler engage in leapfrog migration. We think the novelty of these results is a reflection of the potential for stable-isotope techniques to revise our understanding of bird migration. </p>
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imprint Springer-Verlag, 2002
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spelling Kelly, Jeffrey F. Sharp, Zachary D. Finch, Deborah M. 0029-8549 1432-1939 Springer-Verlag Population Ecology https://www.jstor.org/stable/4223159 <p> Our ability to link the breeding locations of individual passerines to migration stopover sites and wintering locations is limited. Stable isotopes of hydrogen contained in bird feathers have recently shown potential in this regard. We measured hydrogen stable-isotope ratios (δD) of feathers from breeding, migrating, and wintering Wilson's Warblers. Analyses of feathers from museum specimens collected throughout the western portion of the breeding range indicate that δD values are significantly negatively related to latitude of collection (R<sup>2</sup>=0.52), which is an indication that δD values are a good descriptor of breeding latitude. Analyses of feathers collected from birds migrating through the Bosque del Apache National Wildlife Refuge, New Mexico (USA), revealed a significantly positive relationship between δD values and the timing of autumn migration (R<sup>2</sup>=0.34), but not the timing of spring migration. This pattern indicates that Wilson's Warblers that bred furthest north migrated earliest in the autumn. Finally, analysis of feathers collected on the wintering grounds indicate that the hydrogen isotope ratio is significantly positively related to wintering latitude (R<sup>2</sup>=0.80), which indicates that birds that bred furthest north wintered furthest south. In combination, these patterns suggest that in the western portion of their range, Wilson's Warblers have a leapfrog migration system in which the northern-most breeding birds pass through New Mexico early in the autumn to arrive on the wintering grounds in southern Central America, the southern edge of the Wilson's Warblers winter range. We know of no other literature documenting or suggesting that Wilson's Warbler engage in leapfrog migration. We think the novelty of these results is a reflection of the potential for stable-isotope techniques to revise our understanding of bird migration. </p> Insights into Wilson&#39;s Warbler Migration from Analyses of Hydrogen Stable-Isotope Ratios Oecologia
spellingShingle Kelly, Jeffrey F., Sharp, Zachary D., Finch, Deborah M., Oecologia, Insights into Wilson's Warbler Migration from Analyses of Hydrogen Stable-Isotope Ratios, Population Ecology
title Insights into Wilson's Warbler Migration from Analyses of Hydrogen Stable-Isotope Ratios
title_full Insights into Wilson's Warbler Migration from Analyses of Hydrogen Stable-Isotope Ratios
title_fullStr Insights into Wilson's Warbler Migration from Analyses of Hydrogen Stable-Isotope Ratios
title_full_unstemmed Insights into Wilson's Warbler Migration from Analyses of Hydrogen Stable-Isotope Ratios
title_short Insights into Wilson's Warbler Migration from Analyses of Hydrogen Stable-Isotope Ratios
title_sort insights into wilson&#39;s warbler migration from analyses of hydrogen stable-isotope ratios
title_unstemmed Insights into Wilson's Warbler Migration from Analyses of Hydrogen Stable-Isotope Ratios
topic Population Ecology
url https://www.jstor.org/stable/4223159