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The flight feather moult pattern of the bearded vulture (Gypaetus barbatus).

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The flight feather moult pattern of the bearded vulture (Gypaetus barbatus).

dc.contributor.author	Zuberogoitia, Iñigo
dc.contributor.author	Gil, Juan Antonio
dc.contributor.author	Martínez, José Enrique
dc.contributor.author	Erni, Birgit
dc.contributor.author	Aniz, Bakartxo
dc.contributor.author	López López, Pascual
dc.date.accessioned	2017-06-06T10:48:46Z
dc.date.available	2017-06-06T10:48:46Z
dc.date.issued	2016
dc.identifier.citation	Zuberogoitia, Iñigo Gil, Juan Antonio Martínez, José Enrique Erni, Birgit Aniz, Bakartxo López López, Pascual 2016 The flight feather moult pattern of the bearded vulture (Gypaetus barbatus). Journal Of Ornithology 157 209 217
dc.identifier.uri	http://hdl.handle.net/10550/58967
dc.description.abstract	Moult is an extremely time-consuming and energy-demanding task for large birds. In addition, there is a trade-off between the time devoted to moulting and that invested in other activities such as breeding and/or territory exploration. Moreover, it takes a long time to grow a long feather in large birds, and large birds that need to fly while moulting cannot tolerate large gaps in the wing, but only one or two simultaneously growing feathers. As a consequence, large birds take several years to complete a full moult cycle, and they resume the moult process during suboptimal conditions. A clear example of this pattern is the Bearded Vulture (Gypaetus barbatus), which needs 2-3 years for changing all flight feathers. Here we describe the sequence, extent, and timing of moult of 124 Bearded Vultures in detail for the first time. We found that extent and timing of flight feather moult was different between age classes. Subadults (from 3rd to 5th calendar year) started moult, on average, in early March, whereas adults only started moult, on average, in late April, possibly due to breeding requirements. Second calendar year individuals delayed onset of moult until the middle of May. In general, the moult lasted until November, and although adults started to moult later than subadults, they moulted more feathers. Subadults needed 3 years for moulting all flight feathers, whereas adults normally completed it in 2 years.
dc.language.iso	eng
dc.relation.ispartof	Journal Of Ornithology, 2016, vol. 157, p. 209-217
dc.subject	Zoologia
dc.subject	Ocells
dc.title	The flight feather moult pattern of the bearded vulture (Gypaetus barbatus).
dc.type	journal article	es_ES
dc.date.updated	2017-06-06T10:48:46Z
dc.identifier.doi	10.1007/s10336-015-1269-3
dc.identifier.idgrec	118203
dc.rights.accessRights	open access	es_ES