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Wind effects on the migration routes of trans-Saharan soaring raptors: geographical, seasonal and interspecific variation.

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Wind effects on the migration routes of trans-Saharan soaring raptors: geographical, seasonal and interspecific variation.

dc.contributor.author	Vidal Mateo, Javier
dc.contributor.author	Mellone, Ugo
dc.contributor.author	López López, Pascual
dc.contributor.author	Puente, Javier de la
dc.contributor.author	García Ripollés, Clara
dc.contributor.author	Bermejo, Ana
dc.contributor.author	Urios, Vicente
dc.date.accessioned	2017-06-06T10:22:15Z
dc.date.available	2017-06-06T10:22:15Z
dc.date.issued	2016
dc.identifier.citation	Vidal Mateo, Javier Mellone, Ugo López López, Pascual Puente, Javier de la García Ripollés, Clara Bermejo, Ana Urios, Vicente 2016 Wind effects on the migration routes of trans-Saharan soaring raptors: geographical, seasonal and interspecific variation. Current Zoology 62 2 89 97
dc.identifier.uri	http://hdl.handle.net/10550/58962
dc.description.abstract	Wind is among the most important environmental factors shaping birds' migration patterns. Birds must deal with the displacement caused by crosswinds and their behavior can vary according to different factors such as flight mode, migratory season, experience, and distance to goal areas. Here we analyze the relationship between wind and migratory movements of three raptor species which migrate by soaring-gliding flight: Egyptian vulture Neophron percnopterus , booted eagle Aquila pennata , and short-toed snake eagle Circaetus gallicus . We analyzed daily migratory segments (i.e., the path joining consecutive roosting locations) using data recorded by GPS satellite telemetry. Daily movements of Egyptian vultures and booted eagles were significantly affected by tailwinds during both autumn and spring migrations. In contrast, daily movements of short-toed eagles were only significantly affected by tailwinds during autumn migration. The effect of crosswinds was significant in all cases. Interestingly, Egyptian vultures and booted eagles showed latitudinal differences in their behavior: both species compensated more frequently at the onset of autumn migration and, at the end of the season when reaching their wintering areas, the proportion of drift segments was higher. In contrast, there was a higher drift at the onset of spring migration and a higher compensation at the end. Our results highlight the effect of wind patterns on the migratory routes of soaring raptors, with different outcomes in relation to species, season, and latitude, ultimately shaping the loop migration patterns that current tracking techniques are showing to be widespread in many long distance migrants.
dc.language.iso	eng
dc.relation.ispartof	Current Zoology, 2016, vol. 62, num. 2, p. 89-97
dc.title	Wind effects on the migration routes of trans-Saharan soaring raptors: geographical, seasonal and interspecific variation.
dc.type	journal article	es_ES
dc.date.updated	2017-06-06T10:22:15Z
dc.identifier.doi	10.1093/cz/zow008
dc.identifier.idgrec	118202
dc.rights.accessRights	open access	es_ES