Uropygial gland size and composition varies according to experimentally modified microbiome in Great tits
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چکیده
منابع مشابه
Feather mite abundance increases with uropygial gland size and plumage yellowness in Great Tits Parus major
Plumicolous feather mites are ectosymbiotic organisms that live on bird feathers. Despite their abundance and prevalence among birds, the ecology of the interaction between these organisms and their hosts is poorly known. As feather mites feed on oil that birds spread from their uropygial gland, it has been hypothesized, but never tested, that the number of feather mites increases with the size...
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The physiological role of the uropygial gland is still controversial. Certain authors state that its function could be closely connected to the hydrophobic properties of its secretion, that may be essential for plumage waterproofing. Therefore, it could be hypothesized that the degree of this gland's development should be greater in aquatic birds than in terrestrial species. In order to validat...
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For many animals, long-range signalling is essential to maintain contact with conspecifics. In territorial species, individuals often have to balance signalling towards unfamiliar potential competitors (to solely broadcast territory ownership) with signalling towards familiar immediate neighbours (to also maintain so-called "dear enemy" relations). Hence, to understand how signals evolve due to...
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life-history models predict an evolutionary trade-off in the allocation of resources to current versus future reproduction. This corresponds, at the physiological level, to a trade-off in the allocation of resources to current reproduction or to the immune system, which will enhance survival and therefore future reproduction. For clutch size, life-history models predict a positive correlation b...
متن کاملChemical composition of uropygial gland secretions of owls.
The compositions of the uropygial gland secretions of the long-eared owl, eagle owl, and barn owl have been determined. The waxes of the first two owls, which are closely related, are composed of 2-alkyl-substituted fatty acids and n- or monomethyl-branched alcohols with even-numbered branching positions. In addition, some dimethyl-substituted alkanols were observed. In contrast to these waxes,...
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ژورنال
عنوان ژورنال: BMC Evolutionary Biology
سال: 2014
ISSN: 1471-2148
DOI: 10.1186/1471-2148-14-134