Geographic variation in ringed seal ( Pusa hispida ) growth rate and body size
We summarize geographical patterns in ringed seal (Pusa hispida (Schreber, 1775)) body length and girth growth using 3012 samples collected by Inuit hunters in the eastern Canadian Arctic from 1990 to 2016. Spatial structure was detected using cluster analysis of environmental variables separating a...
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crcansciencepubl:10.1139/cjz-2017-0213 2023-12-17T10:25:21+01:00 Geographic variation in ringed seal ( Pusa hispida ) growth rate and body size Ferguson, Steven H. Zhu, Xinhua Young, Brent G. Yurkowski, David J. Thiemann, Gregory W. Fisk, Aaron T. Muir, Derek C.G. 2018 http://dx.doi.org/10.1139/cjz-2017-0213 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2017-0213 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2017-0213 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 96, issue 7, page 649-659 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2018 crcansciencepubl https://doi.org/10.1139/cjz-2017-0213 2023-11-19T13:38:58Z We summarize geographical patterns in ringed seal (Pusa hispida (Schreber, 1775)) body length and girth growth using 3012 samples collected by Inuit hunters in the eastern Canadian Arctic from 1990 to 2016. Spatial structure was detected using cluster analysis of environmental variables separating a northern region in the eastern Canadian High Arctic and a southern region in Hudson Bay. The north was characterized by more fast ice, multiyear ice, greater snow depth, colder temperatures, and greater sea-ice concentration in the spring seal breeding season. Hierarchical Bayesian models described length and axillary girth growth of northern seals as slower than in the south, reaching asymptotic size 5–7 years later. Northern females were larger than males (asymptotic length of 149 versus 140 cm, respectively) and both were larger than southern seals (males and females 126 cm). We conclude that environmental variation was best represented by regions rather than latitude, regional body size differences were driven by differential growth rates, and northern ringed seals may be characterized by reverse sexual size dimorphism. Article in Journal/Newspaper Arctic Hudson Bay inuit Pusa hispida ringed seal Sea ice Canadian Science Publishing (via Crossref) Arctic Hudson Bay Hudson Canadian Journal of Zoology 96 7 649 659 |
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Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
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crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Ferguson, Steven H. Zhu, Xinhua Young, Brent G. Yurkowski, David J. Thiemann, Gregory W. Fisk, Aaron T. Muir, Derek C.G. Geographic variation in ringed seal ( Pusa hispida ) growth rate and body size |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
We summarize geographical patterns in ringed seal (Pusa hispida (Schreber, 1775)) body length and girth growth using 3012 samples collected by Inuit hunters in the eastern Canadian Arctic from 1990 to 2016. Spatial structure was detected using cluster analysis of environmental variables separating a northern region in the eastern Canadian High Arctic and a southern region in Hudson Bay. The north was characterized by more fast ice, multiyear ice, greater snow depth, colder temperatures, and greater sea-ice concentration in the spring seal breeding season. Hierarchical Bayesian models described length and axillary girth growth of northern seals as slower than in the south, reaching asymptotic size 5–7 years later. Northern females were larger than males (asymptotic length of 149 versus 140 cm, respectively) and both were larger than southern seals (males and females 126 cm). We conclude that environmental variation was best represented by regions rather than latitude, regional body size differences were driven by differential growth rates, and northern ringed seals may be characterized by reverse sexual size dimorphism. |
format |
Article in Journal/Newspaper |
author |
Ferguson, Steven H. Zhu, Xinhua Young, Brent G. Yurkowski, David J. Thiemann, Gregory W. Fisk, Aaron T. Muir, Derek C.G. |
author_facet |
Ferguson, Steven H. Zhu, Xinhua Young, Brent G. Yurkowski, David J. Thiemann, Gregory W. Fisk, Aaron T. Muir, Derek C.G. |
author_sort |
Ferguson, Steven H. |
title |
Geographic variation in ringed seal ( Pusa hispida ) growth rate and body size |
title_short |
Geographic variation in ringed seal ( Pusa hispida ) growth rate and body size |
title_full |
Geographic variation in ringed seal ( Pusa hispida ) growth rate and body size |
title_fullStr |
Geographic variation in ringed seal ( Pusa hispida ) growth rate and body size |
title_full_unstemmed |
Geographic variation in ringed seal ( Pusa hispida ) growth rate and body size |
title_sort |
geographic variation in ringed seal ( pusa hispida ) growth rate and body size |
publisher |
Canadian Science Publishing |
publishDate |
2018 |
url |
http://dx.doi.org/10.1139/cjz-2017-0213 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjz-2017-0213 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjz-2017-0213 |
geographic |
Arctic Hudson Bay Hudson |
geographic_facet |
Arctic Hudson Bay Hudson |
genre |
Arctic Hudson Bay inuit Pusa hispida ringed seal Sea ice |
genre_facet |
Arctic Hudson Bay inuit Pusa hispida ringed seal Sea ice |
op_source |
Canadian Journal of Zoology volume 96, issue 7, page 649-659 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjz-2017-0213 |
container_title |
Canadian Journal of Zoology |
container_volume |
96 |
container_issue |
7 |
container_start_page |
649 |
op_container_end_page |
659 |
_version_ |
1785575890354176000 |