Population biology of house mice (Mus musculus L.) on sub-Antarctic Marion Island
Based on mark-recapture models, house mouse densities on sub-Antarctic Marion Island changed seasonally (up to 10-fold) and differed between habitats. Peak densities occurred towards the end of summer (May). On both the hummocky beach and vegetated lava study grids, densities at the end of summer we...
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ftjafricanj:oai:ojs.ajol.info:article/154287 2023-05-15T13:51:06+02:00 Population biology of house mice (Mus musculus L.) on sub-Antarctic Marion Island Matthewson, D.C. van Aarde, R.J. Skinner, J.D. 2017-04-04 application/pdf https://www.ajol.info/index.php/az/article/view/154287 eng eng NISC (Pty) Ltd https://www.ajol.info/index.php/az/article/view/154287/143868 https://www.ajol.info/index.php/az/article/view/154287 The copyright belongs to the Zoological Society of Southern Africa. African Zoology; Vol 29, No 2 (1994); 99-106 2224-073X 1562-7020 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2017 ftjafricanj 2017-04-08T23:57:49Z Based on mark-recapture models, house mouse densities on sub-Antarctic Marion Island changed seasonally (up to 10-fold) and differed between habitats. Peak densities occurred towards the end of summer (May). On both the hummocky beach and vegetated lava study grids, densities at the end of summer were significantly higher than those recorded during 1979/80. During the rest of the year densities were significantly lower on these study grids than those recorded during 1979/80. Length of the breeding season (6,5 months) and mean litter size (7,24 ± 1,7) were of the same order as those recorded during 1979/80, as were age and sex specific mortality patterns. The incidence of pregnancy (7,27 litters/season) was higher (not significant) than that recorded during 1979/80. Prenatal mortality was positively correlated with ovulation rate. Differences in annual trends may result from yearly changes in environmental conditions and do not support speculation that these may have resulted from medium-term changes in climatic conditions in the sub-Antarctic. Article in Journal/Newspaper Antarc* Antarctic Marion Island AJOL - African Journals Online Antarctic |
institution |
Open Polar |
collection |
AJOL - African Journals Online |
op_collection_id |
ftjafricanj |
language |
English |
description |
Based on mark-recapture models, house mouse densities on sub-Antarctic Marion Island changed seasonally (up to 10-fold) and differed between habitats. Peak densities occurred towards the end of summer (May). On both the hummocky beach and vegetated lava study grids, densities at the end of summer were significantly higher than those recorded during 1979/80. During the rest of the year densities were significantly lower on these study grids than those recorded during 1979/80. Length of the breeding season (6,5 months) and mean litter size (7,24 ± 1,7) were of the same order as those recorded during 1979/80, as were age and sex specific mortality patterns. The incidence of pregnancy (7,27 litters/season) was higher (not significant) than that recorded during 1979/80. Prenatal mortality was positively correlated with ovulation rate. Differences in annual trends may result from yearly changes in environmental conditions and do not support speculation that these may have resulted from medium-term changes in climatic conditions in the sub-Antarctic. |
format |
Article in Journal/Newspaper |
author |
Matthewson, D.C. van Aarde, R.J. Skinner, J.D. |
spellingShingle |
Matthewson, D.C. van Aarde, R.J. Skinner, J.D. Population biology of house mice (Mus musculus L.) on sub-Antarctic Marion Island |
author_facet |
Matthewson, D.C. van Aarde, R.J. Skinner, J.D. |
author_sort |
Matthewson, D.C. |
title |
Population biology of house mice (Mus musculus L.) on sub-Antarctic Marion Island |
title_short |
Population biology of house mice (Mus musculus L.) on sub-Antarctic Marion Island |
title_full |
Population biology of house mice (Mus musculus L.) on sub-Antarctic Marion Island |
title_fullStr |
Population biology of house mice (Mus musculus L.) on sub-Antarctic Marion Island |
title_full_unstemmed |
Population biology of house mice (Mus musculus L.) on sub-Antarctic Marion Island |
title_sort |
population biology of house mice (mus musculus l.) on sub-antarctic marion island |
publisher |
NISC (Pty) Ltd |
publishDate |
2017 |
url |
https://www.ajol.info/index.php/az/article/view/154287 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Marion Island |
genre_facet |
Antarc* Antarctic Marion Island |
op_source |
African Zoology; Vol 29, No 2 (1994); 99-106 2224-073X 1562-7020 |
op_relation |
https://www.ajol.info/index.php/az/article/view/154287/143868 https://www.ajol.info/index.php/az/article/view/154287 |
op_rights |
The copyright belongs to the Zoological Society of Southern Africa. |
_version_ |
1766254692181999616 |