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Author  |
McGregor, P.K.; Dabelsteen, T. |
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Title |
Communication Networks |
Type |
Book Chapter |
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Year |
1976 |
Publication |
Ecology and evolution of acoustic communication in birds |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
409-425 |
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Publisher |
Cornell University Press |
Place of Publication |
Ithaca |
Editor |
Kroodsma, D. E.; Miller, E. H. |
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Language |
Englisch |
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ISBN |
978-0801482212 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2167 |
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Author |
Peake, T.M.; Terry, A.M.; McGregor, P.K.; Dabelsteen, T. |
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Title |
Male great tits eavesdrop on simulated male-to-male vocal interactions |
Type |
Journal Article |
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Year |
2001 |
Publication |
Proceedings. Biological sciences / The Royal Society |
Abbreviated Journal |
Proc Biol Sci |
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Volume |
268 |
Issue |
1472 |
Pages |
1183-1187 |
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Keywords |
Animals; Male; Songbirds/*physiology; *Vocalization, Animal |
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Abstract |
Animal communication generally occurs in the environment of a network of several potential signallers and receivers. Within a network environment, it is possible to gain relative information about conspecifics by eavesdropping on signalling interactions. We presented male great tits with the opportunity to gain such information by simulating singing interactions using two loudspeakers. Interactions were presented so that relevant information was not available in the absolute singing behaviour of either individual, only in the relative timing of their songs in the interaction as a whole. We then assayed the information extracted by focal males by subsequently introducing one of the 'interactants' (i.e. loudspeakers) into the territory of the focal male. Focal males responded with a reduced song output to males that had just 'lost' an interaction. Focal males did not respond significantly differently to 'winners' as compared with intruders recently involved in an interaction that contained no consistent information. Focal males also responded by switching song types more often when encountering males that had recently been involved in a low-intensity interaction. These results provide the clearest evidence yet that male songbirds extract information from signal interactions between conspecifics in the field. |
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Address |
Department of Animal Behaviour, Zoological Institute, Tagensvej 16, University of Copenhagen, 2200 Copenhagen N, Denmark. tmpeake@zi.ku.dk |
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English |
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ISSN |
0962-8452 |
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Notes |
PMID:11375107 |
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no |
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Call Number |
refbase @ user @ |
Serial |
712 |
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Author |
Peake, T.M.; Terry, A.M.R.; McGregor, P.K.; Dabelsteen, T. |
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Title |
Do great tits assess rivals by combining direct experience with information gathered by eavesdropping? |
Type |
Journal Article |
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Year |
2002 |
Publication |
Proceedings. Biological sciences / The Royal Society |
Abbreviated Journal |
Proc Biol Sci |
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Volume |
269 |
Issue |
1503 |
Pages |
1925-1929 |
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Keywords |
Aggression; *Animal Communication; Animals; Male; Songbirds/*physiology; Territoriality; *Vocalization, Animal |
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Abstract |
Animals frequently use signals that travel further than the spacing between individuals. For every intended recipient of a given signal there are likely to be many other individuals that receive information. Eavesdropping on signalling interactions between other individuals provides a relatively cost-free method of assessing future opponents or mates. Male great tits (Parus major) extract relative information from such interactions between individuals unknown to them. Here, we show that male great tits can take information gathering a stage further and obtain more information about a previously unencountered intruder, by the hitherto unknown capability of combining information gathered by eavesdropping with that derived from their own direct interaction with an individual. Prior experience with an intruder (A) was achieved by subjecting a focal male to different levels of intrusion simulated using interactive playback. This intruder (A) then took part in a simulated interaction with an unknown male (B) outside the territorial boundary of the focal males. In response to subsequent intrusion by the second male (B), focal males showed low song output in response to males that had lost to a male that the subject was able to beat. Males of known high quality, or those about which information was ambiguous, elicited a high level of song output by focal males. We discuss the implications of this finding for the evolution of communication and social behaviour. |
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Address |
Department of Animal Behaviour, Zoological Institute, Copenhagen University, Tagensvej 16, DK 2200 Copenhagen N, Denmark. tmpeake@zi.ku.uk |
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Language |
English |
Summary Language |
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Series Volume |
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Edition |
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ISSN |
0962-8452 |
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Notes |
PMID:12350255 |
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no |
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Call Number |
refbase @ user @ |
Serial |
501 |
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