Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/3424
Title: The influence of age on the acquirement of a perch in the black-headed gull (Larus ridibundus L): New data and a review of the literature
Authors: Bult, A
VanderZee, EA
NUYTS, Erik 
Issue Date: 1996
Publisher: NATL RESEARCH COUNCIL CANADA
Source: CANADIAN JOURNAL OF ZOOLOGY-REVUE CANADIENNE DE ZOOLOGIE, 74(9). p. 1713-1720
Abstract: In captive black-headed gulls (Larus ridibundus L.), immature birds often win encounters with adults. Under natural conditions, immatures win more fights as challenger, but lose more as challengee if no food is involved. Immatures win more fights for food, both as challenger and as challengee. From the results presented here, and after reviewing the literature on aggressive interactions in the black-headed gull, it is concluded that immatures start and win more fights than adults. They are also more daring in interactions with other species. Some of these differences are probably a result of different foraging strategies of immatures and adults. However, fighting itself may have a higher value for immatures than for adults, perhaps as part of a learning strategy.
Notes: LIMBURGS UNIV CTR,ZOOL RES GRP,B-3590 DIEPENBEEK,BELGIUM. UNIV GRONINGEN,ETHOL DEPT,CTR BIOL,NL-9750 AA HAREN,NETHERLANDS.
Document URI: http://hdl.handle.net/1942/3424
ISI #: A1996VG77300014
Type: Journal Contribution
Appears in Collections:Non-affiliated authors

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