Satellite‐linked dive recorders provide insights into the reproductive strategies of crabeater seals ( Lobodon carcinophagus)
Abstract Insights into the reproductive strategies of crabeater seals Lobodon carcinophagus were obtained from satellite‐linked dive recorders deployed during the breeding season. All of the three females and seven males on which instruments were deployed hauled out continuously for extended periods...
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crwiley:10.1017/s0952836904005928 2024-09-15T18:02:59+00:00 Satellite‐linked dive recorders provide insights into the reproductive strategies of crabeater seals ( Lobodon carcinophagus) Southwell, Colin 2004 http://dx.doi.org/10.1017/s0952836904005928 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1017%2FS0952836904005928 https://onlinelibrary.wiley.com/doi/pdf/10.1017/S0952836904005928 https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1017/S0952836904005928 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Zoology volume 264, issue 4, page 399-402 ISSN 0952-8369 1469-7998 journal-article 2004 crwiley https://doi.org/10.1017/s0952836904005928 2024-08-13T04:11:57Z Abstract Insights into the reproductive strategies of crabeater seals Lobodon carcinophagus were obtained from satellite‐linked dive recorders deployed during the breeding season. All of the three females and seven males on which instruments were deployed hauled out continuously for extended periods of up to 24 days. The duration of extended haulout is consistent with a lactation period of around 3 weeks. In two cases where dive recorders were deployed on a male and female in the same group, the two animals stayed together on the ice continuously and entered the water at exactly the same time when extended haulout ceased. In both cases the male and female became geographically separated within a short time after entering the water, indicating that the association did not last beyond the period on the ice. Some males had multiple periods of extended haulout, suggesting they may try to find more than one female with which to mate. An optimal reproductive strategy with regard to the time spent on the ice may balance the conflicting needs of a short time imposed by the availability of breeding habitat and a long time to increase the reproductive success of males and females by finding more, or choosing between, mates. Article in Journal/Newspaper Crabeater Seals Lobodon carcinophagus Wiley Online Library Journal of Zoology 264 4 399 402 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Insights into the reproductive strategies of crabeater seals Lobodon carcinophagus were obtained from satellite‐linked dive recorders deployed during the breeding season. All of the three females and seven males on which instruments were deployed hauled out continuously for extended periods of up to 24 days. The duration of extended haulout is consistent with a lactation period of around 3 weeks. In two cases where dive recorders were deployed on a male and female in the same group, the two animals stayed together on the ice continuously and entered the water at exactly the same time when extended haulout ceased. In both cases the male and female became geographically separated within a short time after entering the water, indicating that the association did not last beyond the period on the ice. Some males had multiple periods of extended haulout, suggesting they may try to find more than one female with which to mate. An optimal reproductive strategy with regard to the time spent on the ice may balance the conflicting needs of a short time imposed by the availability of breeding habitat and a long time to increase the reproductive success of males and females by finding more, or choosing between, mates. |
format |
Article in Journal/Newspaper |
author |
Southwell, Colin |
spellingShingle |
Southwell, Colin Satellite‐linked dive recorders provide insights into the reproductive strategies of crabeater seals ( Lobodon carcinophagus) |
author_facet |
Southwell, Colin |
author_sort |
Southwell, Colin |
title |
Satellite‐linked dive recorders provide insights into the reproductive strategies of crabeater seals ( Lobodon carcinophagus) |
title_short |
Satellite‐linked dive recorders provide insights into the reproductive strategies of crabeater seals ( Lobodon carcinophagus) |
title_full |
Satellite‐linked dive recorders provide insights into the reproductive strategies of crabeater seals ( Lobodon carcinophagus) |
title_fullStr |
Satellite‐linked dive recorders provide insights into the reproductive strategies of crabeater seals ( Lobodon carcinophagus) |
title_full_unstemmed |
Satellite‐linked dive recorders provide insights into the reproductive strategies of crabeater seals ( Lobodon carcinophagus) |
title_sort |
satellite‐linked dive recorders provide insights into the reproductive strategies of crabeater seals ( lobodon carcinophagus) |
publisher |
Wiley |
publishDate |
2004 |
url |
http://dx.doi.org/10.1017/s0952836904005928 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1017%2FS0952836904005928 https://onlinelibrary.wiley.com/doi/pdf/10.1017/S0952836904005928 https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1017/S0952836904005928 |
genre |
Crabeater Seals Lobodon carcinophagus |
genre_facet |
Crabeater Seals Lobodon carcinophagus |
op_source |
Journal of Zoology volume 264, issue 4, page 399-402 ISSN 0952-8369 1469-7998 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1017/s0952836904005928 |
container_title |
Journal of Zoology |
container_volume |
264 |
container_issue |
4 |
container_start_page |
399 |
op_container_end_page |
402 |
_version_ |
1810440525083312128 |