Long‐term evaluation of body mass at weaning and postweaning survival rates of Weddell seals in Erebus Bay, Antarctica
Abstract Variability in juvenile survival rate is expected to be an important component of the dynamics of long‐lived animal populations. Across a range of species, individual variation in juvenile body mass has been shown to be an important cause of variation in fates of juveniles. Our goal in this...
Published in: | Marine Mammal Science |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2008
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1748-7692.2008.00207.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2008.00207.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2008.00207.x |
id |
crwiley:10.1111/j.1748-7692.2008.00207.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1748-7692.2008.00207.x 2023-12-03T10:14:01+01:00 Long‐term evaluation of body mass at weaning and postweaning survival rates of Weddell seals in Erebus Bay, Antarctica Proffitt, Kelly M. Garrott, Robert A. Rotella, Jay J. 2008 http://dx.doi.org/10.1111/j.1748-7692.2008.00207.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2008.00207.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2008.00207.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 24, issue 3, page 677-689 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2008 crwiley https://doi.org/10.1111/j.1748-7692.2008.00207.x 2023-11-09T14:00:28Z Abstract Variability in juvenile survival rate is expected to be an important component of the dynamics of long‐lived animal populations. Across a range of species, individual variation in juvenile body mass has been shown to be an important cause of variation in fates of juveniles. Our goal in this paper was to estimate age‐specific apparent survival rates for Weddell seals ( Leptonychotes weddellii ) in Erebus Bay, Antarctica, and to investigate hypotheses about relationships between body mass at weaning and apparent survival rate for juveniles. Mark–resighting models found average apparent juvenile survival rate (survival from weaning to age 3) was similar between males and females, and revealed positive relationships between body mass at weaning and apparent juvenile survival rate. The effects of body mass on juvenile survival rate differed between the sexes and the relationship between body mass and survival rate was stronger in males. These results indicate that the magnitude of energy transferred from mother to pup during lactation likely has important consequences on offspring survival rate and maternal fitness. Article in Journal/Newspaper Antarc* Antarctica Weddell Seals Wiley Online Library (via Crossref) Erebus Bay ENVELOPE(166.517,166.517,-77.733,-77.733) Weddell Marine Mammal Science 24 3 677 689 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Proffitt, Kelly M. Garrott, Robert A. Rotella, Jay J. Long‐term evaluation of body mass at weaning and postweaning survival rates of Weddell seals in Erebus Bay, Antarctica |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract Variability in juvenile survival rate is expected to be an important component of the dynamics of long‐lived animal populations. Across a range of species, individual variation in juvenile body mass has been shown to be an important cause of variation in fates of juveniles. Our goal in this paper was to estimate age‐specific apparent survival rates for Weddell seals ( Leptonychotes weddellii ) in Erebus Bay, Antarctica, and to investigate hypotheses about relationships between body mass at weaning and apparent survival rate for juveniles. Mark–resighting models found average apparent juvenile survival rate (survival from weaning to age 3) was similar between males and females, and revealed positive relationships between body mass at weaning and apparent juvenile survival rate. The effects of body mass on juvenile survival rate differed between the sexes and the relationship between body mass and survival rate was stronger in males. These results indicate that the magnitude of energy transferred from mother to pup during lactation likely has important consequences on offspring survival rate and maternal fitness. |
format |
Article in Journal/Newspaper |
author |
Proffitt, Kelly M. Garrott, Robert A. Rotella, Jay J. |
author_facet |
Proffitt, Kelly M. Garrott, Robert A. Rotella, Jay J. |
author_sort |
Proffitt, Kelly M. |
title |
Long‐term evaluation of body mass at weaning and postweaning survival rates of Weddell seals in Erebus Bay, Antarctica |
title_short |
Long‐term evaluation of body mass at weaning and postweaning survival rates of Weddell seals in Erebus Bay, Antarctica |
title_full |
Long‐term evaluation of body mass at weaning and postweaning survival rates of Weddell seals in Erebus Bay, Antarctica |
title_fullStr |
Long‐term evaluation of body mass at weaning and postweaning survival rates of Weddell seals in Erebus Bay, Antarctica |
title_full_unstemmed |
Long‐term evaluation of body mass at weaning and postweaning survival rates of Weddell seals in Erebus Bay, Antarctica |
title_sort |
long‐term evaluation of body mass at weaning and postweaning survival rates of weddell seals in erebus bay, antarctica |
publisher |
Wiley |
publishDate |
2008 |
url |
http://dx.doi.org/10.1111/j.1748-7692.2008.00207.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2008.00207.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2008.00207.x |
long_lat |
ENVELOPE(166.517,166.517,-77.733,-77.733) |
geographic |
Erebus Bay Weddell |
geographic_facet |
Erebus Bay Weddell |
genre |
Antarc* Antarctica Weddell Seals |
genre_facet |
Antarc* Antarctica Weddell Seals |
op_source |
Marine Mammal Science volume 24, issue 3, page 677-689 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1748-7692.2008.00207.x |
container_title |
Marine Mammal Science |
container_volume |
24 |
container_issue |
3 |
container_start_page |
677 |
op_container_end_page |
689 |
_version_ |
1784261060457398272 |