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Title

Nest material preferences by spotless starlings

AuthorsRuiz-Castellano, Cristina ; Tomás, Gustavo ; Ruiz-Rodríguez, Magdalena ; Soler, Juan José
KeywordsAromatic plants
Feather pigmentation,
Nest building behavior,
Nest-lining feathers,
Nest material preference
Issue Date21-Oct-2017
PublisherOxford University Press
CitationBehavioral Ecology 29 (1): 137-144 (2018)
AbstractThe avian nest is an essential structure for offspring development. For adults, nest building entails costs in terms of time, energy, and exposure to predators and parasites. Amount and diversity of materials used for nest building depend on their availability and functionality in scenarios of sexual selection and parasitism. Green plants and feathers of different colors have been hypothesized to play key roles in offspring protection against pathogens, and we here experimentally assessed spotless starling (Sturnus unicolor) preferences for pigmented versus unpigmented feathers and for different green plants (aromatic vs. non-aromatic plants) as nest materials. We predicted a preferential selection of unpigmented feathers and aromatic plants according to the antimicrobial properties of these materials described in the literature. We evaluated these predictions during nest building and during egg-laying stages. As expected, starlings preferentially selected unpigmented feathers both before and during egg laying, while aromatic plants were preferentially selected only during the egg-laying stage. These results suggest that starlings prefer nest materials that enhance antimicrobial protection of their offspring. We also discuss some other, non-exclusive functions that might explain the observed preference for nest materials, especially with regard to their potential role in sexual signaling
Publisher version (URL)https://doi.org/10.1093/beheco/arx139
URIhttp://hdl.handle.net/10261/159008
DOIhttps://doi.org/10.1093/beheco/arx139
ISSN1045-2249
E-ISSN1465-7279
Appears in Collections:(EEZA) Artículos
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