Nest maintenance and stone theft in the Chinstrap penguin (Pygoscelis antarctica) - 2. Effects of breeding group size
The intensity of stone collection and stone theft by breeding Chinstrap penguins was measured, and estimations made of the number of stones per nest in large (> 400 nests) and small subcolonies (< 50 nests) in the large Vapour Col colony on Deception Island, South Shetland Islands. Stone avail...
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Language: | English |
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1995
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Online Access: | http://hdl.handle.net/10261/61967 https://doi.org/10.1007/BF00239645 |
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ftcsic:oai:digital.csic.es:10261/61967 2024-02-11T09:56:24+01:00 Nest maintenance and stone theft in the Chinstrap penguin (Pygoscelis antarctica) - 2. Effects of breeding group size Carrascal, Luis M. Moreno Klemming, Juan Amat, Juan A. 1995 http://hdl.handle.net/10261/61967 https://doi.org/10.1007/BF00239645 en eng Springer doi:10.1007/BF00239645 issn: 0722-4060 Polar Biology 15: 541- 545 (1995) http://hdl.handle.net/10261/61967 open artículo http://purl.org/coar/resource_type/c_6501 1995 ftcsic https://doi.org/10.1007/BF00239645 2024-01-16T09:43:15Z The intensity of stone collection and stone theft by breeding Chinstrap penguins was measured, and estimations made of the number of stones per nest in large (> 400 nests) and small subcolonies (< 50 nests) in the large Vapour Col colony on Deception Island, South Shetland Islands. Stone availability was significantly higher both inside and outside small subcolonies. Penguins carried stones to the nest at the same rate in large and small subcolonies, but stole more intensively in large subcolonies. Stones obtained by theft were significantly larger than those collected elsewhere. When stone availability was increased experimentally, individuals of large subcolonies collected more intensively than control individuals in large and small subcolonies, and stole significantly less than control individuals in large subcolonies, and as much as individuals in small subcolonies. The greater theft pressure in large subcolonies was accompanied by more aggressive defence by nest owners and by reduced succession stealing. However, the reduced availability of stones on the ground near large subcolonies led to a significantly lower number of stones per nest than in small subcolonies. These results are interpreted in the light of the geometric effects of breeding group size (perimeter to surface ratio) on stone accessibility. © 1995 Springer-Verlag. Peer Reviewed Article in Journal/Newspaper Antarc* Antarctica Chinstrap penguin Deception Island Polar Biology Pygoscelis antarctica South Shetland Islands Digital.CSIC (Spanish National Research Council) Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) South Shetland Islands Vapour Col ENVELOPE(-60.728,-60.728,-62.977,-62.977) Polar Biology 15 8 |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
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ftcsic |
language |
English |
description |
The intensity of stone collection and stone theft by breeding Chinstrap penguins was measured, and estimations made of the number of stones per nest in large (> 400 nests) and small subcolonies (< 50 nests) in the large Vapour Col colony on Deception Island, South Shetland Islands. Stone availability was significantly higher both inside and outside small subcolonies. Penguins carried stones to the nest at the same rate in large and small subcolonies, but stole more intensively in large subcolonies. Stones obtained by theft were significantly larger than those collected elsewhere. When stone availability was increased experimentally, individuals of large subcolonies collected more intensively than control individuals in large and small subcolonies, and stole significantly less than control individuals in large subcolonies, and as much as individuals in small subcolonies. The greater theft pressure in large subcolonies was accompanied by more aggressive defence by nest owners and by reduced succession stealing. However, the reduced availability of stones on the ground near large subcolonies led to a significantly lower number of stones per nest than in small subcolonies. These results are interpreted in the light of the geometric effects of breeding group size (perimeter to surface ratio) on stone accessibility. © 1995 Springer-Verlag. Peer Reviewed |
format |
Article in Journal/Newspaper |
author |
Carrascal, Luis M. Moreno Klemming, Juan Amat, Juan A. |
spellingShingle |
Carrascal, Luis M. Moreno Klemming, Juan Amat, Juan A. Nest maintenance and stone theft in the Chinstrap penguin (Pygoscelis antarctica) - 2. Effects of breeding group size |
author_facet |
Carrascal, Luis M. Moreno Klemming, Juan Amat, Juan A. |
author_sort |
Carrascal, Luis M. |
title |
Nest maintenance and stone theft in the Chinstrap penguin (Pygoscelis antarctica) - 2. Effects of breeding group size |
title_short |
Nest maintenance and stone theft in the Chinstrap penguin (Pygoscelis antarctica) - 2. Effects of breeding group size |
title_full |
Nest maintenance and stone theft in the Chinstrap penguin (Pygoscelis antarctica) - 2. Effects of breeding group size |
title_fullStr |
Nest maintenance and stone theft in the Chinstrap penguin (Pygoscelis antarctica) - 2. Effects of breeding group size |
title_full_unstemmed |
Nest maintenance and stone theft in the Chinstrap penguin (Pygoscelis antarctica) - 2. Effects of breeding group size |
title_sort |
nest maintenance and stone theft in the chinstrap penguin (pygoscelis antarctica) - 2. effects of breeding group size |
publisher |
Springer |
publishDate |
1995 |
url |
http://hdl.handle.net/10261/61967 https://doi.org/10.1007/BF00239645 |
long_lat |
ENVELOPE(-60.633,-60.633,-62.950,-62.950) ENVELOPE(-60.728,-60.728,-62.977,-62.977) |
geographic |
Deception Island South Shetland Islands Vapour Col |
geographic_facet |
Deception Island South Shetland Islands Vapour Col |
genre |
Antarc* Antarctica Chinstrap penguin Deception Island Polar Biology Pygoscelis antarctica South Shetland Islands |
genre_facet |
Antarc* Antarctica Chinstrap penguin Deception Island Polar Biology Pygoscelis antarctica South Shetland Islands |
op_relation |
doi:10.1007/BF00239645 issn: 0722-4060 Polar Biology 15: 541- 545 (1995) http://hdl.handle.net/10261/61967 |
op_rights |
open |
op_doi |
https://doi.org/10.1007/BF00239645 |
container_title |
Polar Biology |
container_volume |
15 |
container_issue |
8 |
_version_ |
1790602808027774976 |