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Adventitious feather replacement favours amore rapid regeneration of primaries over rectrices in two passerine bird species

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Hera Fernández, Iván de la and Pérez Tris, Javier and Tellería Jorge, José Luis (2015) Adventitious feather replacement favours amore rapid regeneration of primaries over rectrices in two passerine bird species. Ibsis, 157 (4). pp. 883-887. ISSN 0019-1019, ESSN: 1474-919X

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Official URL: http://onlinelibrary.wiley.com/doi/10.1111/ibi.12302/abstract



Abstract

There is increasing evidence of adaptive preferential investment during moult in those feather tracts that are more advantageous for fitness. In this study, we assessed whether, after the manual removal of two functionally different flight feathers (one primary and one rectrix), birds from two common passerine species (Eurasian Blackcap Sylvia atricapillaand European Robin Erithacus rubecula) favoured the regeneration of primary (supposedly the most functionally important feathers) over rectrix feathers. Our results did not show differences between replaced primary and rectrix feathers in their final length, but demonstrated that the gap left by the loss of the primary feather was filled earlier, suggesting that a rapid repair of the most essential feather tracts is also evolutionarily advantageous during the adventitious replacement of plumage.


Item Type:Article
Uncontrolled Keywords:Induced growth; Ptilochronology; Replaced feather; Resource allocation; Southern Iberia
Subjects:Medical sciences > Biology > Birds
ID Code:41892
Deposited On:23 Mar 2017 11:42
Last Modified:10 Dec 2018 15:25

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