Journal
ANIMAL BEHAVIOUR
Volume 61, Issue -, Pages 239-247Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1006/anbe.2000.1552
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Owing to common descent, related species often show similarity in a number of traits, including those involved in communication. As a result signal similarity and phylogenetic distance are usually inversly, related. However, similarity in signal structure need not correspond with similarity in response to such signals. We tested the hypothesis that individuals are more responsive to signals from closely related species than from distantly related ones. We conducted playback experiments on two turtle dove species (African collared-dove, Streptopelia roseogrisea, and vinaceous dove, Streptopelia vinacea) using conspecific and heterospecific vocalizations. Vocalizations were played from species that differed in degree of relatedness and in relative geographical distribution This enabled us to separate the effects of phylogeny and those of sympatry. There was an effect of phylogenetic distance, with a decrease in response to playback stimuli as phylogenetic distance increased. The results also suggest. a minor effect of sympatry, with the response to sympatric species being lower. (C) 2001 The Association for the study of Animal Behaviour.
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