SHORT COMMUNICATION NOCTURNAL FORAGING BY CHATHAM ISLAND SKUAS
Summary: Study of the cooperative breeding of southern great skuas (Stercorarius skua lonnbergi) on the Chatham Islands has identified differences in food availability among territories. Skuas here feed substantially on breeding petrels. Transmitters were placed on 10 birds of pairs and cooperativel...
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Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.411.631 http://www.newzealandecology.org/nzje/free_issues/NZJEcol11_113.pdf |
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.411.631 2023-05-15T18:27:20+02:00 SHORT COMMUNICATION NOCTURNAL FORAGING BY CHATHAM ISLAND SKUAS The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.411.631 http://www.newzealandecology.org/nzje/free_issues/NZJEcol11_113.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.411.631 http://www.newzealandecology.org/nzje/free_issues/NZJEcol11_113.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.newzealandecology.org/nzje/free_issues/NZJEcol11_113.pdf transmitters skuas Stercorarius skua lonnbergi southern great skuas Chatham Islands nocturnal text ftciteseerx 2016-01-08T03:22:26Z Summary: Study of the cooperative breeding of southern great skuas (Stercorarius skua lonnbergi) on the Chatham Islands has identified differences in food availability among territories. Skuas here feed substantially on breeding petrels. Transmitters were placed on 10 birds of pairs and cooperatively breeding groups to monitor their movements on dark nights. Birds on territories containing petrel burrows remained within the territory, and fed on petrels caught on the ground. The territory of one pair on a rocky point lacked breeding petrels. The male was tracked at night away from the territory to an inland site. No birds left the island at night or followed flying petrels. No differences were found in the nocturnal behaviour of the individual birds of cooperative groups. The evidence obtained that skuas may feed both within and outside territories has implications for theories of territoriality and cooperative breeding based on resource defence. Text Stercorarius skua Unknown Burrows ENVELOPE(163.650,163.650,-74.300,-74.300) Rocky Point ENVELOPE(-36.700,-36.700,-54.183,-54.183) |
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Open Polar |
collection |
Unknown |
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ftciteseerx |
language |
English |
topic |
transmitters skuas Stercorarius skua lonnbergi southern great skuas Chatham Islands nocturnal |
spellingShingle |
transmitters skuas Stercorarius skua lonnbergi southern great skuas Chatham Islands nocturnal SHORT COMMUNICATION NOCTURNAL FORAGING BY CHATHAM ISLAND SKUAS |
topic_facet |
transmitters skuas Stercorarius skua lonnbergi southern great skuas Chatham Islands nocturnal |
description |
Summary: Study of the cooperative breeding of southern great skuas (Stercorarius skua lonnbergi) on the Chatham Islands has identified differences in food availability among territories. Skuas here feed substantially on breeding petrels. Transmitters were placed on 10 birds of pairs and cooperatively breeding groups to monitor their movements on dark nights. Birds on territories containing petrel burrows remained within the territory, and fed on petrels caught on the ground. The territory of one pair on a rocky point lacked breeding petrels. The male was tracked at night away from the territory to an inland site. No birds left the island at night or followed flying petrels. No differences were found in the nocturnal behaviour of the individual birds of cooperative groups. The evidence obtained that skuas may feed both within and outside territories has implications for theories of territoriality and cooperative breeding based on resource defence. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
title |
SHORT COMMUNICATION NOCTURNAL FORAGING BY CHATHAM ISLAND SKUAS |
title_short |
SHORT COMMUNICATION NOCTURNAL FORAGING BY CHATHAM ISLAND SKUAS |
title_full |
SHORT COMMUNICATION NOCTURNAL FORAGING BY CHATHAM ISLAND SKUAS |
title_fullStr |
SHORT COMMUNICATION NOCTURNAL FORAGING BY CHATHAM ISLAND SKUAS |
title_full_unstemmed |
SHORT COMMUNICATION NOCTURNAL FORAGING BY CHATHAM ISLAND SKUAS |
title_sort |
short communication nocturnal foraging by chatham island skuas |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.411.631 http://www.newzealandecology.org/nzje/free_issues/NZJEcol11_113.pdf |
long_lat |
ENVELOPE(163.650,163.650,-74.300,-74.300) ENVELOPE(-36.700,-36.700,-54.183,-54.183) |
geographic |
Burrows Rocky Point |
geographic_facet |
Burrows Rocky Point |
genre |
Stercorarius skua |
genre_facet |
Stercorarius skua |
op_source |
http://www.newzealandecology.org/nzje/free_issues/NZJEcol11_113.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.411.631 http://www.newzealandecology.org/nzje/free_issues/NZJEcol11_113.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766209402923122688 |