Food divisibility and interference competition among captive ruddy turnstones, Arenaria interpres
Interference competition among foraging animals arises from agonistic interactions among foragers. Interactions can concern single food items but also clumps of food. Food clumps consist of multiple food items, and are therefore easier to divide among foragers than food items. Theoretical studies in...
Published in: | Animal Behaviour |
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2007
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Online Access: | https://hdl.handle.net/11370/77b4e7b5-8da8-4520-80c9-c6068cde60cd https://research.rug.nl/en/publications/77b4e7b5-8da8-4520-80c9-c6068cde60cd https://doi.org/10.1016/j.anbehav.2007.01.006 |
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ftunigroningenpu:oai:pure.rug.nl:publications/77b4e7b5-8da8-4520-80c9-c6068cde60cd 2024-06-02T08:03:00+00:00 Food divisibility and interference competition among captive ruddy turnstones, Arenaria interpres Vahl, Wouter K. Kingma, Sjouke A. 2007-11 https://hdl.handle.net/11370/77b4e7b5-8da8-4520-80c9-c6068cde60cd https://research.rug.nl/en/publications/77b4e7b5-8da8-4520-80c9-c6068cde60cd https://doi.org/10.1016/j.anbehav.2007.01.006 eng eng https://research.rug.nl/en/publications/77b4e7b5-8da8-4520-80c9-c6068cde60cd info:eu-repo/semantics/closedAccess Vahl , W K & Kingma , S A 2007 , ' Food divisibility and interference competition among captive ruddy turnstones, Arenaria interpres ' , Animal Behaviour , vol. 74 , pp. 1391-1401 . https://doi.org/10.1016/j.anbehav.2007.01.006 agonistic interactions Arenaria interpres behavioural mechanisms density dependence foraging experiment resource defence ruddy turnstone social dominance BARNACLE GOOSE FLOCKS SOCIAL-DOMINANCE HOUSE SPARROWS AGGRESSION MODEL article 2007 ftunigroningenpu https://doi.org/10.1016/j.anbehav.2007.01.006 2024-05-07T17:54:11Z Interference competition among foraging animals arises from agonistic interactions among foragers. Interactions can concern single food items but also clumps of food. Food clumps consist of multiple food items, and are therefore easier to divide among foragers than food items. Theoretical studies indicate that differences in divisibility can be essential to the interference process. Empirically, however, little is known about effects of resource divisibility on interference competition. Therefore, we performed an experiment with captive ruddy turnstones. Turnstones foraged either alone or together with a competitor. We offered food at two so-called food pits and varied the divisibility of food in these pits by burying a fixed number of food items either in several layers (divisible) or in a single layer (indivisible). Additionally, we varied the distance between food pits. We accounted for differences in the social dominance status of foragers by using pairs of foragers as our experimental unit: each pair had both a dominant and a subordinate member. We found a strong asymmetry in the intake of birds of different dominance status. The strength of this asymmetry depended on both the divisibility of food and on the distance between food pits. Only when food was divisible did subordinate foragers get a share of the food; only when food pits were close to each other could dominant foragers monopolize food pits. These findings imply that to understand and predict interference competition we need to consider both the detailed characteristics of resources, and the determinants of dominance status. (c) 2007 The Association for the Study or Animal Behaviour. Published by Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Arenaria interpres Barnacle goose Ruddy Turnstone University of Groningen research database Animal Behaviour 74 5 1391 1401 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
agonistic interactions Arenaria interpres behavioural mechanisms density dependence foraging experiment resource defence ruddy turnstone social dominance BARNACLE GOOSE FLOCKS SOCIAL-DOMINANCE HOUSE SPARROWS AGGRESSION MODEL |
spellingShingle |
agonistic interactions Arenaria interpres behavioural mechanisms density dependence foraging experiment resource defence ruddy turnstone social dominance BARNACLE GOOSE FLOCKS SOCIAL-DOMINANCE HOUSE SPARROWS AGGRESSION MODEL Vahl, Wouter K. Kingma, Sjouke A. Food divisibility and interference competition among captive ruddy turnstones, Arenaria interpres |
topic_facet |
agonistic interactions Arenaria interpres behavioural mechanisms density dependence foraging experiment resource defence ruddy turnstone social dominance BARNACLE GOOSE FLOCKS SOCIAL-DOMINANCE HOUSE SPARROWS AGGRESSION MODEL |
description |
Interference competition among foraging animals arises from agonistic interactions among foragers. Interactions can concern single food items but also clumps of food. Food clumps consist of multiple food items, and are therefore easier to divide among foragers than food items. Theoretical studies indicate that differences in divisibility can be essential to the interference process. Empirically, however, little is known about effects of resource divisibility on interference competition. Therefore, we performed an experiment with captive ruddy turnstones. Turnstones foraged either alone or together with a competitor. We offered food at two so-called food pits and varied the divisibility of food in these pits by burying a fixed number of food items either in several layers (divisible) or in a single layer (indivisible). Additionally, we varied the distance between food pits. We accounted for differences in the social dominance status of foragers by using pairs of foragers as our experimental unit: each pair had both a dominant and a subordinate member. We found a strong asymmetry in the intake of birds of different dominance status. The strength of this asymmetry depended on both the divisibility of food and on the distance between food pits. Only when food was divisible did subordinate foragers get a share of the food; only when food pits were close to each other could dominant foragers monopolize food pits. These findings imply that to understand and predict interference competition we need to consider both the detailed characteristics of resources, and the determinants of dominance status. (c) 2007 The Association for the Study or Animal Behaviour. Published by Elsevier Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Vahl, Wouter K. Kingma, Sjouke A. |
author_facet |
Vahl, Wouter K. Kingma, Sjouke A. |
author_sort |
Vahl, Wouter K. |
title |
Food divisibility and interference competition among captive ruddy turnstones, Arenaria interpres |
title_short |
Food divisibility and interference competition among captive ruddy turnstones, Arenaria interpres |
title_full |
Food divisibility and interference competition among captive ruddy turnstones, Arenaria interpres |
title_fullStr |
Food divisibility and interference competition among captive ruddy turnstones, Arenaria interpres |
title_full_unstemmed |
Food divisibility and interference competition among captive ruddy turnstones, Arenaria interpres |
title_sort |
food divisibility and interference competition among captive ruddy turnstones, arenaria interpres |
publishDate |
2007 |
url |
https://hdl.handle.net/11370/77b4e7b5-8da8-4520-80c9-c6068cde60cd https://research.rug.nl/en/publications/77b4e7b5-8da8-4520-80c9-c6068cde60cd https://doi.org/10.1016/j.anbehav.2007.01.006 |
genre |
Arenaria interpres Barnacle goose Ruddy Turnstone |
genre_facet |
Arenaria interpres Barnacle goose Ruddy Turnstone |
op_source |
Vahl , W K & Kingma , S A 2007 , ' Food divisibility and interference competition among captive ruddy turnstones, Arenaria interpres ' , Animal Behaviour , vol. 74 , pp. 1391-1401 . https://doi.org/10.1016/j.anbehav.2007.01.006 |
op_relation |
https://research.rug.nl/en/publications/77b4e7b5-8da8-4520-80c9-c6068cde60cd |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.anbehav.2007.01.006 |
container_title |
Animal Behaviour |
container_volume |
74 |
container_issue |
5 |
container_start_page |
1391 |
op_container_end_page |
1401 |
_version_ |
1800747451518287872 |