Ecological correlates of variable organ sizes and fat loads in the mostnortherly wintering shorebirds
Shorebirds at northern latitudes during the nonbreeding season typically carry relatively large lipid stores and exhibit an up-regulation of lean tissues associated with digestion and thermogenesis. Intraspecific variation in these tissues across sites primarily reflects differences in environmental...
Published in: | Canadian Journal of Zoology |
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Language: | English |
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2013
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Online Access: | https://www.vliz.be/imisdocs/publications/87/262587.pdf |
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ftnioz:oai:imis.nioz.nl:240708 2023-05-15T15:48:32+02:00 Ecological correlates of variable organ sizes and fat loads in the mostnortherly wintering shorebirds Ruthrauff, D.R. Dekinga, A. Gill, R.E. Summers, R.W. Piersma, T. 2013 application/pdf https://www.vliz.be/imisdocs/publications/87/262587.pdf en eng info:eu-repo/semantics/altIdentifier/wos/000325434800003 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1139/cjz-2013-0070 https://www.vliz.be/imisdocs/publications/87/262587.pdf info:eu-repo/semantics/openAccess %3Ci%3ECan.+J.+Zool.+91%3C%2Fi%3E%3A+698-705.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1139%2Fcjz-2013-0070%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1139%2Fcjz-2013-0070%3C%2Fa%3E Calidris maritima Calidris ptilocnemis info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2013 ftnioz https://doi.org/10.1139/cjz-2013-0070 2022-05-01T13:59:41Z Shorebirds at northern latitudes during the nonbreeding season typically carry relatively large lipid stores and exhibit an up-regulation of lean tissues associated with digestion and thermogenesis. Intraspecific variation in these tissues across sites primarily reflects differences in environmental conditions. Rock (Calidris ptilocnemis (Coues, 1873)) and Purple (Calidris maritima (Brünnich, 1764)) sandpipers are closely related species having the most northerly nonbreeding distributions among shorebirds, living at latitudes up to 61°N in Cook Inlet, Alaska, and up to ~71°N in northern Norway, respectively. Cook Inlet is the coldest known site used by nonbreeding shorebirds, and the region’s mudflats annually experience extensive coverage of foraging sites by sea and shore-fast ice. Accordingly, Rock Sandpipers increase their fat stores to nearly 20% of body mass during winter. In contrast, Purple Sandpipers exploit predictably ice-free rocky intertidal foraging sites and maintain low (<6.5%) fat stores. Rock Sandpipers increase the mass of lean tissues from fall to winter, including contour feathers, stomach, and liver components. They also have greater lean pectoralis and supracoracoideus muscle and liver and kidney tissues compared with Purple Sandpipers in winter. This demonstrates a combined emphasis on digestive processes and thermogenesis, whereas Purple Sandpipers primarily augment organs associated with digestive processes. The high winter fat loads and increased lean tissues of Rock Sandpipers in Cook Inlet reflect the region’s persistent cold and abundant but sporadically unavailable food resources. Article in Journal/Newspaper Calidris maritima Northern Norway Alaska NIOZ Repository (Royal Netherlands Institute for Sea Research) Norway Canadian Journal of Zoology 91 10 698 705 |
institution |
Open Polar |
collection |
NIOZ Repository (Royal Netherlands Institute for Sea Research) |
op_collection_id |
ftnioz |
language |
English |
topic |
Calidris maritima Calidris ptilocnemis |
spellingShingle |
Calidris maritima Calidris ptilocnemis Ruthrauff, D.R. Dekinga, A. Gill, R.E. Summers, R.W. Piersma, T. Ecological correlates of variable organ sizes and fat loads in the mostnortherly wintering shorebirds |
topic_facet |
Calidris maritima Calidris ptilocnemis |
description |
Shorebirds at northern latitudes during the nonbreeding season typically carry relatively large lipid stores and exhibit an up-regulation of lean tissues associated with digestion and thermogenesis. Intraspecific variation in these tissues across sites primarily reflects differences in environmental conditions. Rock (Calidris ptilocnemis (Coues, 1873)) and Purple (Calidris maritima (Brünnich, 1764)) sandpipers are closely related species having the most northerly nonbreeding distributions among shorebirds, living at latitudes up to 61°N in Cook Inlet, Alaska, and up to ~71°N in northern Norway, respectively. Cook Inlet is the coldest known site used by nonbreeding shorebirds, and the region’s mudflats annually experience extensive coverage of foraging sites by sea and shore-fast ice. Accordingly, Rock Sandpipers increase their fat stores to nearly 20% of body mass during winter. In contrast, Purple Sandpipers exploit predictably ice-free rocky intertidal foraging sites and maintain low (<6.5%) fat stores. Rock Sandpipers increase the mass of lean tissues from fall to winter, including contour feathers, stomach, and liver components. They also have greater lean pectoralis and supracoracoideus muscle and liver and kidney tissues compared with Purple Sandpipers in winter. This demonstrates a combined emphasis on digestive processes and thermogenesis, whereas Purple Sandpipers primarily augment organs associated with digestive processes. The high winter fat loads and increased lean tissues of Rock Sandpipers in Cook Inlet reflect the region’s persistent cold and abundant but sporadically unavailable food resources. |
format |
Article in Journal/Newspaper |
author |
Ruthrauff, D.R. Dekinga, A. Gill, R.E. Summers, R.W. Piersma, T. |
author_facet |
Ruthrauff, D.R. Dekinga, A. Gill, R.E. Summers, R.W. Piersma, T. |
author_sort |
Ruthrauff, D.R. |
title |
Ecological correlates of variable organ sizes and fat loads in the mostnortherly wintering shorebirds |
title_short |
Ecological correlates of variable organ sizes and fat loads in the mostnortherly wintering shorebirds |
title_full |
Ecological correlates of variable organ sizes and fat loads in the mostnortherly wintering shorebirds |
title_fullStr |
Ecological correlates of variable organ sizes and fat loads in the mostnortherly wintering shorebirds |
title_full_unstemmed |
Ecological correlates of variable organ sizes and fat loads in the mostnortherly wintering shorebirds |
title_sort |
ecological correlates of variable organ sizes and fat loads in the mostnortherly wintering shorebirds |
publishDate |
2013 |
url |
https://www.vliz.be/imisdocs/publications/87/262587.pdf |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Calidris maritima Northern Norway Alaska |
genre_facet |
Calidris maritima Northern Norway Alaska |
op_source |
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op_relation |
info:eu-repo/semantics/altIdentifier/wos/000325434800003 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1139/cjz-2013-0070 https://www.vliz.be/imisdocs/publications/87/262587.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1139/cjz-2013-0070 |
container_title |
Canadian Journal of Zoology |
container_volume |
91 |
container_issue |
10 |
container_start_page |
698 |
op_container_end_page |
705 |
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1766383492522835968 |