Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.12/3172
Título: Owl dusk chorus is related to the quality of individuals and nest-sites
Autor: Penteriani, Vincenzo
Delgado, Maria del Mar
Stigliano, Renato
Campioni, Letizia
Sanchez, Maria
Palavras-chave: Calls
Individual quality
Vocal display
Data: 2014
Editora: Wiley-Blackwell
Citação: IBIS, 156, 892-895
Resumo: Dawn and dusk choruses represent one of the most investigated topics in avian vocal behaviour, but their underlying basis remains unclear. As with the dawn chorus in passerines, dusk chorus in owls seems to support the mate and rival assessment hypothesis and happens during the most constraining period, as individuals have not yet fed and, under the handicap principle, dusk chorus is likely to reveal inter-individual differences in competitive ability, body condition and/or habitat quality. Here, a study of vocal displays at dusk of 14 Eurasian Eagle Owls Bubo bubo revealed a temporal succession in the order in which males began their vocalizations. The vocalization order appeared to be related to both the quality of the nesting territory (based upon mean number of fledged young and proportion of rats in the diet) and the male’s individual quality, as revealed by haematocrit values and the brightness of the white throat patch.
Peer review: yes
URI: http://hdl.handle.net/10400.12/3172
DOI: 10.1111/ibi.12178
ISSN: 0019-1019
Aparece nas colecções:UIE-E - Artigos em revistas internacionais

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