Comparative analysis reveals migratory swallows (Hirundinidae) have less pointed wings than residents
نویسندگان
چکیده
منابع مشابه
Convergent evolution in social swallows (Aves: Hirundinidae)
Behavioral shifts can initiate morphological evolution by pushing lineages into new adaptive zones. This has primarily been examined in ecological behaviors, such as foraging, but social behaviors may also alter morphology. Swallows and martins (Hirundinidae) are aerial insectivores that exhibit a range of social behaviors, from solitary to colonial breeding and foraging. Using a well-resolved ...
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Migratory bird, bat and insect species tend to have more pointed wings than non-migrants. Pointed wings and low wingloading, or body mass divided by wing area, are thought to reduce energy consumption during long-distance flight, but these hypotheses have never been directly tested. Furthermore, it is not clear how the atmospheric conditions migrants encounter while aloft affect their energy us...
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ژورنال
عنوان ژورنال: Biological Journal of the Linnean Society
سال: 2016
ISSN: 0024-4066
DOI: 10.1111/bij.12875