The effect of cat Felis catus predation on three breeding Procellariidae species on Marion Island
Breeding success of Pterodroma macroptera, Procellaria aequinoctialis and Pachyptila vittata salvini in three cat-free and three control areas were used to evaluate the effects of cat Felis catus predation on the avifauna of Marion Island. Breeding success of all three species was significantly high...
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ftjafricanj:oai:ojs.ajol.info:article/153476 2023-05-15T13:51:04+02:00 The effect of cat Felis catus predation on three breeding Procellariidae species on Marion Island van Rensburg, P.J.J. Bester, M.N. 2017-03-20 application/pdf https://www.ajol.info/index.php/az/article/view/153476 eng eng NISC (Pty) Ltd https://www.ajol.info/index.php/az/article/view/153476/143068 https://www.ajol.info/index.php/az/article/view/153476 The copyright belongs to the Zoological Society of Southern Africa. African Zoology; Vol 23, No 4 (1988); 301-305 2224-073X 1562-7020 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2017 ftjafricanj 2017-03-26T01:01:55Z Breeding success of Pterodroma macroptera, Procellaria aequinoctialis and Pachyptila vittata salvini in three cat-free and three control areas were used to evaluate the effects of cat Felis catus predation on the avifauna of Marion Island. Breeding success of all three species was significantly higher in the combined cat-free areas than in the combined control areas. However, breeding success in one cat-free area failed to show a significant difference from its particular control area, probably as a result of higher skua (Catharacta antarctica) predation inside the cat-free area. Chicks of P. macroptera and P. aequinoctialis were especially vulnerable to cat predation, since cats can enter their nesting burrows. P. macroptera was seriously affected by cat predation because it is the most abundant of only two winter-breeding petrels. Significant changes in the number of nest visits by these petrels during their breeding season followed hatching dates, which in turn were concomitant with, or were followed by significant differences in the combined breeding success between the cat-free and control areas. The cat-free areas show that an elimination of cat predation would still favour the recovery of the petrel population. Article in Journal/Newspaper Antarc* Antarctica Marion Island AJOL - African Journals Online Burrows ENVELOPE(163.650,163.650,-74.300,-74.300) |
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Open Polar |
collection |
AJOL - African Journals Online |
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ftjafricanj |
language |
English |
description |
Breeding success of Pterodroma macroptera, Procellaria aequinoctialis and Pachyptila vittata salvini in three cat-free and three control areas were used to evaluate the effects of cat Felis catus predation on the avifauna of Marion Island. Breeding success of all three species was significantly higher in the combined cat-free areas than in the combined control areas. However, breeding success in one cat-free area failed to show a significant difference from its particular control area, probably as a result of higher skua (Catharacta antarctica) predation inside the cat-free area. Chicks of P. macroptera and P. aequinoctialis were especially vulnerable to cat predation, since cats can enter their nesting burrows. P. macroptera was seriously affected by cat predation because it is the most abundant of only two winter-breeding petrels. Significant changes in the number of nest visits by these petrels during their breeding season followed hatching dates, which in turn were concomitant with, or were followed by significant differences in the combined breeding success between the cat-free and control areas. The cat-free areas show that an elimination of cat predation would still favour the recovery of the petrel population. |
format |
Article in Journal/Newspaper |
author |
van Rensburg, P.J.J. Bester, M.N. |
spellingShingle |
van Rensburg, P.J.J. Bester, M.N. The effect of cat Felis catus predation on three breeding Procellariidae species on Marion Island |
author_facet |
van Rensburg, P.J.J. Bester, M.N. |
author_sort |
van Rensburg, P.J.J. |
title |
The effect of cat Felis catus predation on three breeding Procellariidae species on Marion Island |
title_short |
The effect of cat Felis catus predation on three breeding Procellariidae species on Marion Island |
title_full |
The effect of cat Felis catus predation on three breeding Procellariidae species on Marion Island |
title_fullStr |
The effect of cat Felis catus predation on three breeding Procellariidae species on Marion Island |
title_full_unstemmed |
The effect of cat Felis catus predation on three breeding Procellariidae species on Marion Island |
title_sort |
effect of cat felis catus predation on three breeding procellariidae species on marion island |
publisher |
NISC (Pty) Ltd |
publishDate |
2017 |
url |
https://www.ajol.info/index.php/az/article/view/153476 |
long_lat |
ENVELOPE(163.650,163.650,-74.300,-74.300) |
geographic |
Burrows |
geographic_facet |
Burrows |
genre |
Antarc* Antarctica Marion Island |
genre_facet |
Antarc* Antarctica Marion Island |
op_source |
African Zoology; Vol 23, No 4 (1988); 301-305 2224-073X 1562-7020 |
op_relation |
https://www.ajol.info/index.php/az/article/view/153476/143068 https://www.ajol.info/index.php/az/article/view/153476 |
op_rights |
The copyright belongs to the Zoological Society of Southern Africa. |
_version_ |
1766254646496591872 |