Sex differences in the nursing relationship between mothers and pups in the Atlantic harbour seal, Phoca vitulina concolor
Sex differences in the dynamics of the relationship between harbour seal mothers and their pups were investigated. An index of pair proximity governance suggested that pups became increasingly responsible for maintaining the distance between the pair over the course of the nursing period. Male pups...
Published in: | Journal of Zoology |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
1993
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1469-7998.1993.tb01919.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-7998.1993.tb01919.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1993.tb01919.x https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1993.tb01919.x |
id |
crwiley:10.1111/j.1469-7998.1993.tb01919.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1469-7998.1993.tb01919.x 2024-06-02T08:07:47+00:00 Sex differences in the nursing relationship between mothers and pups in the Atlantic harbour seal, Phoca vitulina concolor Rosen, D. A. S. Renouf, D. 1993 http://dx.doi.org/10.1111/j.1469-7998.1993.tb01919.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-7998.1993.tb01919.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1993.tb01919.x https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1993.tb01919.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Zoology volume 231, issue 2, page 291-299 ISSN 0952-8369 1469-7998 journal-article 1993 crwiley https://doi.org/10.1111/j.1469-7998.1993.tb01919.x 2024-05-03T10:54:04Z Sex differences in the dynamics of the relationship between harbour seal mothers and their pups were investigated. An index of pair proximity governance suggested that pups became increasingly responsible for maintaining the distance between the pair over the course of the nursing period. Male pups demonstrated a stronger tendency to control initiation distance than female pups. A Nursing Index utilizing suckling bout initiations and terminations revealed that, as weaning approached, pups became progressively more responsible for the continuance of nursing. Male pups exhibited more control than female pups, primarily through initiating a greater portion of the bouts. On‐teat times averaged 4.08 min per bout, with no significant differences between male and female pups. Male pups, however. nursed a greater portion of haul‐out time due to higher bout frequencies obtained through more bout initiations. Mothers did not preferentially reject attempts to nurse by pups of either sex. These results suggest that the tenet of parental investment theory suggesting male pups enjoy preferential investment may be misleading. In harbour seals. male pups seem actively to seek out resources, as opposed to any inherent strategy on the par1 of the mother. Article in Journal/Newspaper harbour seal Phoca vitulina Wiley Online Library Journal of Zoology 231 2 291 299 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Sex differences in the dynamics of the relationship between harbour seal mothers and their pups were investigated. An index of pair proximity governance suggested that pups became increasingly responsible for maintaining the distance between the pair over the course of the nursing period. Male pups demonstrated a stronger tendency to control initiation distance than female pups. A Nursing Index utilizing suckling bout initiations and terminations revealed that, as weaning approached, pups became progressively more responsible for the continuance of nursing. Male pups exhibited more control than female pups, primarily through initiating a greater portion of the bouts. On‐teat times averaged 4.08 min per bout, with no significant differences between male and female pups. Male pups, however. nursed a greater portion of haul‐out time due to higher bout frequencies obtained through more bout initiations. Mothers did not preferentially reject attempts to nurse by pups of either sex. These results suggest that the tenet of parental investment theory suggesting male pups enjoy preferential investment may be misleading. In harbour seals. male pups seem actively to seek out resources, as opposed to any inherent strategy on the par1 of the mother. |
format |
Article in Journal/Newspaper |
author |
Rosen, D. A. S. Renouf, D. |
spellingShingle |
Rosen, D. A. S. Renouf, D. Sex differences in the nursing relationship between mothers and pups in the Atlantic harbour seal, Phoca vitulina concolor |
author_facet |
Rosen, D. A. S. Renouf, D. |
author_sort |
Rosen, D. A. S. |
title |
Sex differences in the nursing relationship between mothers and pups in the Atlantic harbour seal, Phoca vitulina concolor |
title_short |
Sex differences in the nursing relationship between mothers and pups in the Atlantic harbour seal, Phoca vitulina concolor |
title_full |
Sex differences in the nursing relationship between mothers and pups in the Atlantic harbour seal, Phoca vitulina concolor |
title_fullStr |
Sex differences in the nursing relationship between mothers and pups in the Atlantic harbour seal, Phoca vitulina concolor |
title_full_unstemmed |
Sex differences in the nursing relationship between mothers and pups in the Atlantic harbour seal, Phoca vitulina concolor |
title_sort |
sex differences in the nursing relationship between mothers and pups in the atlantic harbour seal, phoca vitulina concolor |
publisher |
Wiley |
publishDate |
1993 |
url |
http://dx.doi.org/10.1111/j.1469-7998.1993.tb01919.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-7998.1993.tb01919.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1993.tb01919.x https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1993.tb01919.x |
genre |
harbour seal Phoca vitulina |
genre_facet |
harbour seal Phoca vitulina |
op_source |
Journal of Zoology volume 231, issue 2, page 291-299 ISSN 0952-8369 1469-7998 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1469-7998.1993.tb01919.x |
container_title |
Journal of Zoology |
container_volume |
231 |
container_issue |
2 |
container_start_page |
291 |
op_container_end_page |
299 |
_version_ |
1800752920954667008 |