Pup growth and maternal attendance patterns in Subantarctic fur seals

Samples of pups from the expanding populations of Subantarctic fur seals (Arctocephalus tropicalis) at Marion and Gough islands were weighed at specific ages between birth and weaning in the period 1993-2000. Growth was estimated and compared between years, sexes, sites of different density, and pop...

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Main Authors: Kirkman, S.P., Bester, M.N., Hofmeyr, G.J.G., Pistorius, P.A., Makhado, A.B.
Format: Article in Journal/Newspaper
Language:English
Published: NISC (Pty) Ltd 2017
Subjects:
Online Access:https://www.ajol.info/index.php/az/article/view/155408
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record_format openpolar
spelling ftjafricanj:oai:ojs.ajol.info:article/155408 2023-05-15T17:10:17+02:00 Pup growth and maternal attendance patterns in Subantarctic fur seals Kirkman, S.P. Bester, M.N. Hofmeyr, G.J.G. Pistorius, P.A. Makhado, A.B. 2017-05-02 application/pdf https://www.ajol.info/index.php/az/article/view/155408 eng eng NISC (Pty) Ltd https://www.ajol.info/index.php/az/article/view/155408/145032 https://www.ajol.info/index.php/az/article/view/155408 The copyright belongs to the Zoological Society of Southern Africa. African Zoology; Vol 37, No 1 (2002); 13–19 2224-073X 1562-7020 Subantarctic fur seal Marion Island Gough Island pup growth maternal attendance behaviour info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2017 ftjafricanj 2017-05-06T23:57:24Z Samples of pups from the expanding populations of Subantarctic fur seals (Arctocephalus tropicalis) at Marion and Gough islands were weighed at specific ages between birth and weaning in the period 1993-2000. Growth was estimated and compared between years, sexes, sites of different density, and populations. Pups of comparable age were consistently heavier at Marion Island than at Gough Island, probably reflecting relative prey resource abundance. No changes in pup growth rates were apparent over the study period, nor was there any evidence that growth was affected by ENSO events. Measures of pup growth at Marion Island were complemented by measures of maternal attendance behaviour during three summer and winter seasons. More years of data are required to determine patterns between attendance, growth, resource conditions and population abundance trends.Key words: Subantarctic fur seal, Marion Island, Gough Island, pup growth, maternal attendance behaviour. Article in Journal/Newspaper Marion Island AJOL - African Journals Online Gough ENVELOPE(159.367,159.367,-81.633,-81.633)
institution Open Polar
collection AJOL - African Journals Online
op_collection_id ftjafricanj
language English
topic Subantarctic fur seal
Marion Island
Gough Island
pup growth
maternal attendance behaviour
spellingShingle Subantarctic fur seal
Marion Island
Gough Island
pup growth
maternal attendance behaviour
Kirkman, S.P.
Bester, M.N.
Hofmeyr, G.J.G.
Pistorius, P.A.
Makhado, A.B.
Pup growth and maternal attendance patterns in Subantarctic fur seals
topic_facet Subantarctic fur seal
Marion Island
Gough Island
pup growth
maternal attendance behaviour
description Samples of pups from the expanding populations of Subantarctic fur seals (Arctocephalus tropicalis) at Marion and Gough islands were weighed at specific ages between birth and weaning in the period 1993-2000. Growth was estimated and compared between years, sexes, sites of different density, and populations. Pups of comparable age were consistently heavier at Marion Island than at Gough Island, probably reflecting relative prey resource abundance. No changes in pup growth rates were apparent over the study period, nor was there any evidence that growth was affected by ENSO events. Measures of pup growth at Marion Island were complemented by measures of maternal attendance behaviour during three summer and winter seasons. More years of data are required to determine patterns between attendance, growth, resource conditions and population abundance trends.Key words: Subantarctic fur seal, Marion Island, Gough Island, pup growth, maternal attendance behaviour.
format Article in Journal/Newspaper
author Kirkman, S.P.
Bester, M.N.
Hofmeyr, G.J.G.
Pistorius, P.A.
Makhado, A.B.
author_facet Kirkman, S.P.
Bester, M.N.
Hofmeyr, G.J.G.
Pistorius, P.A.
Makhado, A.B.
author_sort Kirkman, S.P.
title Pup growth and maternal attendance patterns in Subantarctic fur seals
title_short Pup growth and maternal attendance patterns in Subantarctic fur seals
title_full Pup growth and maternal attendance patterns in Subantarctic fur seals
title_fullStr Pup growth and maternal attendance patterns in Subantarctic fur seals
title_full_unstemmed Pup growth and maternal attendance patterns in Subantarctic fur seals
title_sort pup growth and maternal attendance patterns in subantarctic fur seals
publisher NISC (Pty) Ltd
publishDate 2017
url https://www.ajol.info/index.php/az/article/view/155408
long_lat ENVELOPE(159.367,159.367,-81.633,-81.633)
geographic Gough
geographic_facet Gough
genre Marion Island
genre_facet Marion Island
op_source African Zoology; Vol 37, No 1 (2002); 13–19
2224-073X
1562-7020
op_relation https://www.ajol.info/index.php/az/article/view/155408/145032
https://www.ajol.info/index.php/az/article/view/155408
op_rights The copyright belongs to the Zoological Society of Southern Africa.
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