Feather mites on birds: costs of parasitism or conditional outcomes?
نویسنده
چکیده
Guillermo Blanco, Department of Biology, Uninersity of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 0W0 and Instituto de Innestigació n en Recursos Cinegéticos (C.S.I.C.), c /Libertad 7 A, E -13004 Ciudad Real, Spain. E -mail: [email protected] José L. Tella, Department of Applied Biology, Estació n Bioló gica de Doñ ana (C.S.I.C.), Anda. Maria Luisa s /n, E -41013 Senilla, Spain Jaime Potti, Departamento de Biologı́a Animal, Uninersidad de Alcalá , E -28871 Alcalá de Henares, Madrid, Spain Arturo Baz, Departamento de Biologı́a Animal, Uninersidad de Alcalá , E -28871 Alcalá de Henares, Madrid, Spain
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is no unambiguous evidence that plumicolous feather mites chew holes in feathers; such damage is usually caused by feather lice. Also, it has been reported that feather mites of the great-spotted woodpecker (Dryobates major) and the hoopoe (Upupa epops) avoid white spots on the feathers and instead aggregate on melanized areas 5. Thus, as we stressed in our review 3 , extrapolating from lice to...
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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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Feather mites (Astigmata: Analgoidea and Pterolichoidea) are among the most abundant and commonly occurring bird ectosymbionts. Basic questions on the ecology and evolution of feather mites remain unanswered because feather mite species identification is often only possible for adult males, and it is laborious even for specialized taxonomists, thus precluding large-scale identifications. Here, ...
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Potentially, pathogenic bacteria are one of the main infective agents against which a battery of chemical and physical barriers has evolved in animals. Among these are the secretions by the exocrine uropygial gland in birds. The antimicrobial properties of uropygial secretions may prevent colonization and growth of microorganisms on feathers, skin and eggshells. However, uropygial gland secreti...
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