Energy transfer and female condition in nursing harp seals Phoca groenlandica
Lactating female harp seals, most with their pups, were collected on the “whelping” ice in the Gulf of St. Lawrence in 1976 and from 1978 to 1980. During lactation females lost weight at an average rate of 3.17±0.52 (SE b ) kg d −1 , for a total energy loss of approximately 250000 kcal. Pups grew at...
Published in: | Ecography |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
1984
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1600-0587.1984.tb01120.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.1984.tb01120.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.1984.tb01120.x |
id |
crwiley:10.1111/j.1600-0587.1984.tb01120.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1600-0587.1984.tb01120.x 2024-04-28T08:36:12+00:00 Energy transfer and female condition in nursing harp seals Phoca groenlandica Stewart, R. E. A. Lavigne, D. M. 1984 http://dx.doi.org/10.1111/j.1600-0587.1984.tb01120.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.1984.tb01120.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.1984.tb01120.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecography volume 7, issue 2, page 182-194 ISSN 0906-7590 1600-0587 Ecology, Evolution, Behavior and Systematics journal-article 1984 crwiley https://doi.org/10.1111/j.1600-0587.1984.tb01120.x 2024-04-08T06:56:20Z Lactating female harp seals, most with their pups, were collected on the “whelping” ice in the Gulf of St. Lawrence in 1976 and from 1978 to 1980. During lactation females lost weight at an average rate of 3.17±0.52 (SE b ) kg d −1 , for a total energy loss of approximately 250000 kcal. Pups grew at a mean rate of 2.78±0.19 kg d −1 for a gain in production energy of about 194000 kcal. Compared to 1976, adult females sampled in 1978 to 1980 had lower energy reserves at the onset of lactation. Coincidentally there has been a decrease in newborn lengths and girths. Although compensatory growth in weight appears to occur, between‐year differences in newborn lengths persist to weaning. Various reproductive strategies of female harp seals faced with reduced energy stores are discussed. Article in Journal/Newspaper Phoca groenlandica Wiley Online Library Ecography 7 2 182 194 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology, Evolution, Behavior and Systematics Stewart, R. E. A. Lavigne, D. M. Energy transfer and female condition in nursing harp seals Phoca groenlandica |
topic_facet |
Ecology, Evolution, Behavior and Systematics |
description |
Lactating female harp seals, most with their pups, were collected on the “whelping” ice in the Gulf of St. Lawrence in 1976 and from 1978 to 1980. During lactation females lost weight at an average rate of 3.17±0.52 (SE b ) kg d −1 , for a total energy loss of approximately 250000 kcal. Pups grew at a mean rate of 2.78±0.19 kg d −1 for a gain in production energy of about 194000 kcal. Compared to 1976, adult females sampled in 1978 to 1980 had lower energy reserves at the onset of lactation. Coincidentally there has been a decrease in newborn lengths and girths. Although compensatory growth in weight appears to occur, between‐year differences in newborn lengths persist to weaning. Various reproductive strategies of female harp seals faced with reduced energy stores are discussed. |
format |
Article in Journal/Newspaper |
author |
Stewart, R. E. A. Lavigne, D. M. |
author_facet |
Stewart, R. E. A. Lavigne, D. M. |
author_sort |
Stewart, R. E. A. |
title |
Energy transfer and female condition in nursing harp seals Phoca groenlandica |
title_short |
Energy transfer and female condition in nursing harp seals Phoca groenlandica |
title_full |
Energy transfer and female condition in nursing harp seals Phoca groenlandica |
title_fullStr |
Energy transfer and female condition in nursing harp seals Phoca groenlandica |
title_full_unstemmed |
Energy transfer and female condition in nursing harp seals Phoca groenlandica |
title_sort |
energy transfer and female condition in nursing harp seals phoca groenlandica |
publisher |
Wiley |
publishDate |
1984 |
url |
http://dx.doi.org/10.1111/j.1600-0587.1984.tb01120.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.1984.tb01120.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.1984.tb01120.x |
genre |
Phoca groenlandica |
genre_facet |
Phoca groenlandica |
op_source |
Ecography volume 7, issue 2, page 182-194 ISSN 0906-7590 1600-0587 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1600-0587.1984.tb01120.x |
container_title |
Ecography |
container_volume |
7 |
container_issue |
2 |
container_start_page |
182 |
op_container_end_page |
194 |
_version_ |
1797568041137995776 |