The influence of social interactions on the foraging path of Bewick's Swans Cygnus columbianus bewickii
The efficiency in which high-density food patches are found is determined by the way foragers move between patches. In this study we explore the effect of social interactions on the foraging path, in particular the distance moved between patches. We studied Bewick¿s Swans Cygnus columbianus bewickii...
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ftunivwagenin:oai:library.wur.nl:wurpubs/370523 2024-02-04T09:59:58+01:00 The influence of social interactions on the foraging path of Bewick's Swans Cygnus columbianus bewickii Klaassen, R.H.G. Nolet, B.A. Bankert, D. 2006 application/pdf https://research.wur.nl/en/publications/the-influence-of-social-interactions-on-the-foraging-path-of-bewi en eng https://edepot.wur.nl/18943 https://research.wur.nl/en/publications/the-influence-of-social-interactions-on-the-foraging-path-of-bewi info:eu-repo/semantics/openAccess Wageningen University & Research Ardea 94 (2006) 3 ISSN: 0373-2266 behavior depletion efficiency foragers habitat information migration patterns tubers tundra swans info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2006 ftunivwagenin 2024-01-10T23:25:33Z The efficiency in which high-density food patches are found is determined by the way foragers move between patches. In this study we explore the effect of social interactions on the foraging path, in particular the distance moved between patches. We studied Bewick¿s Swans Cygnus columbianus bewickii that foraged on belowground tubers of Fennel Pondweed Potamogeton pectinatus. We accurately mapped the foraging path of individual swans and determined the distances between visited patches. 24% of inter-patch movements are associated with social interactions. When a swan retreats from a patch because it is chased away by another swan, it moves a significantly larger distance to a patch than if the movement is not associated with a social interaction. Such longer movements are thought to reduce the rate at which high-density patches are encountered, and thus the energy gain rate a swan can achieve. We observed a strong social hierarchy in which families are dominant over pairs and singletons, and pairs are dominant over singletons, which represents a producer¿scrounger model. Singletons were most frequently observed to retreat from patches and are consequently thought to achieve the lowest gain rates, and also as a result exhibit the slowest speed of movement between patches. However singletons might partly compensate for more frequent retreats from patches by moving larger distances to arrive at the front edge of a flock where they encounter unexploited resources. Article in Journal/Newspaper Cygnus columbianus Tundra Wageningen UR (University & Research Centre): Digital Library |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
behavior depletion efficiency foragers habitat information migration patterns tubers tundra swans |
spellingShingle |
behavior depletion efficiency foragers habitat information migration patterns tubers tundra swans Klaassen, R.H.G. Nolet, B.A. Bankert, D. The influence of social interactions on the foraging path of Bewick's Swans Cygnus columbianus bewickii |
topic_facet |
behavior depletion efficiency foragers habitat information migration patterns tubers tundra swans |
description |
The efficiency in which high-density food patches are found is determined by the way foragers move between patches. In this study we explore the effect of social interactions on the foraging path, in particular the distance moved between patches. We studied Bewick¿s Swans Cygnus columbianus bewickii that foraged on belowground tubers of Fennel Pondweed Potamogeton pectinatus. We accurately mapped the foraging path of individual swans and determined the distances between visited patches. 24% of inter-patch movements are associated with social interactions. When a swan retreats from a patch because it is chased away by another swan, it moves a significantly larger distance to a patch than if the movement is not associated with a social interaction. Such longer movements are thought to reduce the rate at which high-density patches are encountered, and thus the energy gain rate a swan can achieve. We observed a strong social hierarchy in which families are dominant over pairs and singletons, and pairs are dominant over singletons, which represents a producer¿scrounger model. Singletons were most frequently observed to retreat from patches and are consequently thought to achieve the lowest gain rates, and also as a result exhibit the slowest speed of movement between patches. However singletons might partly compensate for more frequent retreats from patches by moving larger distances to arrive at the front edge of a flock where they encounter unexploited resources. |
format |
Article in Journal/Newspaper |
author |
Klaassen, R.H.G. Nolet, B.A. Bankert, D. |
author_facet |
Klaassen, R.H.G. Nolet, B.A. Bankert, D. |
author_sort |
Klaassen, R.H.G. |
title |
The influence of social interactions on the foraging path of Bewick's Swans Cygnus columbianus bewickii |
title_short |
The influence of social interactions on the foraging path of Bewick's Swans Cygnus columbianus bewickii |
title_full |
The influence of social interactions on the foraging path of Bewick's Swans Cygnus columbianus bewickii |
title_fullStr |
The influence of social interactions on the foraging path of Bewick's Swans Cygnus columbianus bewickii |
title_full_unstemmed |
The influence of social interactions on the foraging path of Bewick's Swans Cygnus columbianus bewickii |
title_sort |
influence of social interactions on the foraging path of bewick's swans cygnus columbianus bewickii |
publishDate |
2006 |
url |
https://research.wur.nl/en/publications/the-influence-of-social-interactions-on-the-foraging-path-of-bewi |
genre |
Cygnus columbianus Tundra |
genre_facet |
Cygnus columbianus Tundra |
op_source |
Ardea 94 (2006) 3 ISSN: 0373-2266 |
op_relation |
https://edepot.wur.nl/18943 https://research.wur.nl/en/publications/the-influence-of-social-interactions-on-the-foraging-path-of-bewi |
op_rights |
info:eu-repo/semantics/openAccess Wageningen University & Research |
_version_ |
1789965027547021312 |