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...
Published in: | Canadian Journal of Zoology |
---|---|
Main Authors: | , , , , , , |
Format: | Text |
Language: | unknown |
Published: |
Scholarship at UWindsor
2018
|
Subjects: | |
Online Access: | https://scholar.uwindsor.ca/glierpub/324 https://doi.org/10.1139/cjz-2017-0213 |
id |
ftunivwindsor:oai:scholar.uwindsor.ca:glierpub-1326 |
---|---|
record_format |
openpolar |
spelling |
ftunivwindsor:oai:scholar.uwindsor.ca:glierpub-1326 2023-06-11T04:09:06+02:00 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. 2018-01-01T08:00:00Z https://scholar.uwindsor.ca/glierpub/324 https://doi.org/10.1139/cjz-2017-0213 unknown Scholarship at UWindsor https://scholar.uwindsor.ca/glierpub/324 doi:10.1139/cjz-2017-0213 https://doi.org/10.1139/cjz-2017-0213 Great Lakes Institute for Environmental Research Publications Asymptotic body size Brody growth rate Nunavut Phocids Pinnipeds Pusa hispida Ringed seal Sea ice Sexual size dimorphism Snow Temperature text 2018 ftunivwindsor https://doi.org/10.1139/cjz-2017-0213 2023-05-06T19:10:50Z 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. Text Arctic Hudson Bay inuit Nunavut Pusa hispida ringed seal Sea ice University of Windsor, Ontario: Scholarship at UWindsor Arctic Nunavut Hudson Bay Hudson Canadian Journal of Zoology 96 7 649 659 |
institution |
Open Polar |
collection |
University of Windsor, Ontario: Scholarship at UWindsor |
op_collection_id |
ftunivwindsor |
language |
unknown |
topic |
Asymptotic body size Brody growth rate Nunavut Phocids Pinnipeds Pusa hispida Ringed seal Sea ice Sexual size dimorphism Snow Temperature |
spellingShingle |
Asymptotic body size Brody growth rate Nunavut Phocids Pinnipeds Pusa hispida Ringed seal Sea ice Sexual size dimorphism Snow Temperature 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 |
Asymptotic body size Brody growth rate Nunavut Phocids Pinnipeds Pusa hispida Ringed seal Sea ice Sexual size dimorphism Snow Temperature |
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 |
Text |
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 |
Scholarship at UWindsor |
publishDate |
2018 |
url |
https://scholar.uwindsor.ca/glierpub/324 https://doi.org/10.1139/cjz-2017-0213 |
geographic |
Arctic Nunavut Hudson Bay Hudson |
geographic_facet |
Arctic Nunavut Hudson Bay Hudson |
genre |
Arctic Hudson Bay inuit Nunavut Pusa hispida ringed seal Sea ice |
genre_facet |
Arctic Hudson Bay inuit Nunavut Pusa hispida ringed seal Sea ice |
op_source |
Great Lakes Institute for Environmental Research Publications |
op_relation |
https://scholar.uwindsor.ca/glierpub/324 doi:10.1139/cjz-2017-0213 https://doi.org/10.1139/cjz-2017-0213 |
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_ |
1768382819730456576 |