Metadata language
Individuals adjust their body reserves to dominance
Creator: Contributor:Polish Academy of Sciences. Institute of Ecology
Publisher:Polish Academy of Sciences. Institute of Ecology. Publishing Office
Place of publishing: Date issued/created: Description:Pages 207-216 : illustrations ; 27 cm ; Bibliographical references (pages 215-216)
Type of object: Subject and Keywords:mixed-species flocks ; willow tits ; crested tits ; body reserves ; aggressive interactions ; benefits and costs
Abstract:Mixed-species flocks represent a prevalent sociality form of the forest wintering parids. Efficient use of time is of high survival value for individual foragers. It was found that in groups composed of willow (Parus montanus) and crested tits (P. cristatus) intraspecific competition appears to be more severe than interspecific interference. Decreasing time allocated to intraspecific aggressiveness, social individuals in mixed-species flocks supposedly increase their probability of survival till the next breeding season. Social dependence of the two tit species was controlled by observations of their fattening strategies. Willow tits were considered to substitute for the lacking crested tits, since replacement of their metabolized energy was found to be dependent on the influence of dominant crested tits.
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Language: Language of abstract: Rights:Creative Commons Attribution BY 3.0 PL license
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Digitizing institution:Museum and Institute of Zoology of the Polish Academy of Sciences
Original in:Library of the Museum and Institute of Zoology of the Polish Academy of Sciences
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