NAGIOS: RODERIC FUNCIONANDO

Individual repeatability in timing and spatial flexibility of migration routes of trans-Saharan migratory raptors.

Repositori DSpace/Manakin

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

Individual repeatability in timing and spatial flexibility of migration routes of trans-Saharan migratory raptors.

dc.contributor.author	López López, Pascual
dc.contributor.author	García Ripollés, Clara
dc.contributor.author	Urios, Vicente
dc.date.accessioned	2020-04-29T11:10:54Z
dc.date.available	2020-04-29T11:10:54Z
dc.date.issued	2015
dc.identifier.citation	López López, Pascual García Ripollés, Clara Urios, Vicente 2015 Individual repeatability in timing and spatial flexibility of migration routes of trans-Saharan migratory raptors. Current Zoology 60 5 642 652
dc.identifier.uri	https://hdl.handle.net/10550/74129
dc.description.abstract	Satellite-tracking technology has allowed scientists to make a quantum leap in the field of migration ecology. Nowadays, the basic description of migratory routes of many species of birds has been reported. However, the investigation of bird migration at individual level (i.e. repeatability in migratory routes and timing) still remains seldom explored. Here, we investigated repeated migratory trips of a trans-Saharan endangered migratory raptor, the Egyptian Vulture Neophron percnopterus, tracked by GPS satellite telemetry. We compared between- and within-individual variation in migratory routes and timing in order to assess the degree of repeatability (or conversely, the flexibility) in migration. To this end, we analysed a dataset of 48 trips (23 springs and 25 autumns) recorded for six adult birds during 2007-2013. Our results showed consistent migration timing at the individual level, both in spring and autumn. Interestingly, there was a high degree of flexibility in the routes followed by the same individual in different years, probably due to variations in meteorological conditions. Contrary to expectations of a faster migration in spring than in autumn owing to a time-minimization strategy for breeding, birds spent less time in autumn migration (13 ± 2 days, range = 9-18 d) than in spring migration (19 ± 3 days, range = 13-26 d), which can be explained by differences in environmental conditions en route. Egyptian vultures showed a consistent clockwise loop migration through western Africa, following more easterly routes in autumn than in spring. Finally, our results provide supporting evidence of low phenotypic plasticity in timing of migration (i.e. strong endogenous control of migration) and high flexibility in routes.
dc.language.iso	eng
dc.relation.ispartof	Current Zoology, 2015, vol. 60, num. 5, p. 642-652
dc.subject	Biologia
dc.subject	Zoologia
dc.subject	Animals Migració
dc.title	Individual repeatability in timing and spatial flexibility of migration routes of trans-Saharan migratory raptors.
dc.type	journal article	es_ES
dc.date.updated	2020-04-29T11:10:54Z
dc.identifier.doi	10.1093/czoolo/60.5.642
dc.identifier.idgrec	137079
dc.rights.accessRights	open access	es_ES