Habitat segregation by breeding origin in the declining populations of European Robins wintering in southern Iberia

de la Hera, Iván; Fandos, Guillermo; Fernández-López, Javier; Onrubia, Alejandro; Pérez-Rodrí­guez, Antón; Pérez-Tris, Javier; Tellerí­a, José Luis

Habitat segregation by breeding origin in the declining populations of European Robins wintering in southern Iberia

dc.contributor.author	de la Hera, Iván
dc.contributor.author	Fandos, Guillermo
dc.contributor.author	Fernández-López, Javier
dc.contributor.author	Onrubia, Alejandro
dc.contributor.author	Pérez-Rodríguez, Antón
dc.contributor.author	Pérez-Tris, Javier
dc.contributor.author	Tellería, José Luis
dc.contributor.funder	Ministerio de Economía y Competitividad	es
dc.date.accessioned	2018-10-18T09:04:52Z
dc.date.available	2018-10-18T09:04:52Z
dc.date.issued	2017-10-21
dc.date.updated	2018-10-12T10:46:24Z
dc.description.abstract	Mediterranean woodlands and associated shrub formations of southern Iberia are key habitats for conservation of migratory birds. In some bird species, migratory and sedentary conspecifics meet in these areas during winter, but our understanding of how each population group is distributed over available habitats and the factors that determine their spatial organization are still unclear. This seriously limits our ability to assess their vulnerability to ongoing environmental changes affecting wintering habitats in this region. We used hydrogen isotopic signatures of feathers (δDf) to shed light on the habitat distribution of seasonally sympatric European Robin Erithacus rubecula populations wintering in Campo de Gibraltar that are currently facing a drastic decline. In contrast to previous studies that used morphological methods to distinguish the migratory behaviour of wintering Robins in this area, our isotopic approach revealed that sedentary Robins were not outcompeted upon the arrival of migrants and remained in the woodlands where they reproduce, which agrees with results obtained in other regions. Interestingly, we also found that migratory Robins with a closer breeding origin (higher δDf values) had a higher probability of occupying woodlands than did migrants coming from further away. Overall, our results suggest that the role of breeding origin in shaping the distribution of Robins during winter in Campo de Gibraltar is more relevant than the effects of sex, age or body size, which might facilitate the evolution of local adaptations for the exploitation of each habitat type.	en
dc.description.sponsorship	Ministerio de Economía y Competitividad (Projects CGL2011- 22953/BOS; CGL2007-62937/BOS; CGL2013-41642-P/BOS)	en
dc.description.status	Peer reviewed	en
dc.description.version	Accepted Version	en
dc.format.mimetype	application/pdf	en
dc.identifier.citation	de la Hera, I., Fandos, G., Fernández-López, J., Onrubia, A.' Pérez-Rodríguez, A., Pérez-Tris, J. and Tellería, J. L. (2017) 'Habitat segregation by breeding origin in the declining populations of European Robins wintering in southern Iberia', Ibis, 160(2), pp. 355-364. doi:10.1111/ibi.12549	en
dc.identifier.doi	10.1111/ibi.12549
dc.identifier.endpage	364	en
dc.identifier.issn	0019-1019
dc.identifier.issn	1474-919X
dc.identifier.issued	2	en
dc.identifier.journaltitle	Ibis	en
dc.identifier.startpage	355	en
dc.identifier.uri	https://hdl.handle.net/10468/7018
dc.identifier.volume	160	en
dc.language.iso	en	en
dc.publisher	John Wiley & Sons, Inc.	en
dc.rights	© 2017, British Ornithologists’ Union. This is the peer reviewed version of the following article: de la Hera, I., Fandos, G., Fernández-López, J., Onrubia, A.' Pérez-Rodríguez, A., Pérez-Tris, J. and Tellería, J. L. (2017) 'Habitat segregation by breeding origin in the declining populations of European Robins wintering in southern Iberia', Ibis, 160(2), pp. 355-364. doi:10.1111/ibi.12549, which has been published in final form at https://doi.org/10.1111/ibi.12549. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.	en
dc.subject	Deuterium	en
dc.subject	Habitat selection	en
dc.subject	Intraspecific interactions	en
dc.subject	Rectrix feathers	en
dc.title	Habitat segregation by breeding origin in the declining populations of European Robins wintering in southern Iberia	en
dc.type	Article (peer-reviewed)	en