Parent–offspring associations in wintering brent geese: parental investment or mutual assistance?
Abstract The continued parent–offspring associations in the Eastern Canadian High Arctic light‐bellied brent goose Branta bernicla hrota was examined to determine whether this is an example of continued parental investment or mutual assistance. Adults with juveniles spend more than twice as much tim...
Published in: | Journal of Zoology |
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Online Access: | http://dx.doi.org/10.1111/j.1469-7998.2007.00281.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-7998.2007.00281.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.2007.00281.x https://onlinelibrary.wiley.com/doi/full-xml/10.1111/j.1469-7998.2007.00281.x https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.2007.00281.x |
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crwiley:10.1111/j.1469-7998.2007.00281.x 2024-06-02T08:02:18+00:00 Parent–offspring associations in wintering brent geese: parental investment or mutual assistance? Tinkler, E. Montgomery, W. I. Elwood, R. W. 2007 http://dx.doi.org/10.1111/j.1469-7998.2007.00281.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-7998.2007.00281.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.2007.00281.x https://onlinelibrary.wiley.com/doi/full-xml/10.1111/j.1469-7998.2007.00281.x https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.2007.00281.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Zoology volume 272, issue 4, page 398-405 ISSN 0952-8369 1469-7998 journal-article 2007 crwiley https://doi.org/10.1111/j.1469-7998.2007.00281.x 2024-05-03T11:51:18Z Abstract The continued parent–offspring associations in the Eastern Canadian High Arctic light‐bellied brent goose Branta bernicla hrota was examined to determine whether this is an example of continued parental investment or mutual assistance. Adults with juveniles spend more than twice as much time being vigilant and aggressive than do those without offspring. The loss of a partner, however, does not result in the remaining parent increasing parental care but does result in increased ‘self‐care’ by the juveniles. Neither parents nor single‐parent juveniles appear to pay an energetic cost relative to non‐parental adults and two‐parent juveniles, respectively. Differences in the feeding distribution of parents and non‐parents and equivalent or better physical condition suggests that families are able to maintain access to a superior food supply over the winter. Passive ‘assistance’ by juveniles may assist in maintaining this position in favoured areas, and this is achieved with little overt aggression. The present study thus provides no data that show a net cost to parents by remaining with their juveniles over the winter period. Thus, mutual assistance might be a better explanation of the prolonged association rather than a period of parental investment with an overall cost. Article in Journal/Newspaper Arctic Branta bernicla brent geese Brent goose Wiley Online Library Arctic Journal of Zoology 272 4 398 405 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The continued parent–offspring associations in the Eastern Canadian High Arctic light‐bellied brent goose Branta bernicla hrota was examined to determine whether this is an example of continued parental investment or mutual assistance. Adults with juveniles spend more than twice as much time being vigilant and aggressive than do those without offspring. The loss of a partner, however, does not result in the remaining parent increasing parental care but does result in increased ‘self‐care’ by the juveniles. Neither parents nor single‐parent juveniles appear to pay an energetic cost relative to non‐parental adults and two‐parent juveniles, respectively. Differences in the feeding distribution of parents and non‐parents and equivalent or better physical condition suggests that families are able to maintain access to a superior food supply over the winter. Passive ‘assistance’ by juveniles may assist in maintaining this position in favoured areas, and this is achieved with little overt aggression. The present study thus provides no data that show a net cost to parents by remaining with their juveniles over the winter period. Thus, mutual assistance might be a better explanation of the prolonged association rather than a period of parental investment with an overall cost. |
format |
Article in Journal/Newspaper |
author |
Tinkler, E. Montgomery, W. I. Elwood, R. W. |
spellingShingle |
Tinkler, E. Montgomery, W. I. Elwood, R. W. Parent–offspring associations in wintering brent geese: parental investment or mutual assistance? |
author_facet |
Tinkler, E. Montgomery, W. I. Elwood, R. W. |
author_sort |
Tinkler, E. |
title |
Parent–offspring associations in wintering brent geese: parental investment or mutual assistance? |
title_short |
Parent–offspring associations in wintering brent geese: parental investment or mutual assistance? |
title_full |
Parent–offspring associations in wintering brent geese: parental investment or mutual assistance? |
title_fullStr |
Parent–offspring associations in wintering brent geese: parental investment or mutual assistance? |
title_full_unstemmed |
Parent–offspring associations in wintering brent geese: parental investment or mutual assistance? |
title_sort |
parent–offspring associations in wintering brent geese: parental investment or mutual assistance? |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.1111/j.1469-7998.2007.00281.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-7998.2007.00281.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.2007.00281.x https://onlinelibrary.wiley.com/doi/full-xml/10.1111/j.1469-7998.2007.00281.x https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.2007.00281.x |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Branta bernicla brent geese Brent goose |
genre_facet |
Arctic Branta bernicla brent geese Brent goose |
op_source |
Journal of Zoology volume 272, issue 4, page 398-405 ISSN 0952-8369 1469-7998 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1469-7998.2007.00281.x |
container_title |
Journal of Zoology |
container_volume |
272 |
container_issue |
4 |
container_start_page |
398 |
op_container_end_page |
405 |
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1800746810699939840 |