2024-03-28T13:29:33Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1434062021-12-27T16:24:27Zcom_10261_108com_10261_8col_10261_361
DIGITAL.CSIC
author
Mellone, Ugo
author
Limiñana, Rubén
author
López-López, Pascual
author
Urios, Vicente
funder
Ministerio de Economía y Competitividad (España)
funder
University of Helsinki
funder
European Commission
funder
Junta de Comunidades de Castilla-La Mancha
funder
Lund University
funder
Diputación de Alicante
funder
Swedish Research Council
funder
Ministerio de Educación (España)
2017-02-03T13:43:28Z
2017-02-03T13:43:28Z
2012
PLoS ONE 7(7): e39833 (2012)
http://hdl.handle.net/10261/143406
10.1371/journal.pone.0039833
http://dx.doi.org/10.13039/501100003329http://dx.doi.org/10.13039/501100000780http://dx.doi.org/10.13039/501100011698
22768314
[Background]: Performance of migrating birds can be affected by a number of intrinsic and extrinsic factors like morphology, meteorological conditions and migration strategies. We compared travel speeds of four raptor species during their crossing of the Sahara desert. Focusing the analyses on this region allows us to compare different species under equivalent conditions in order to disentangle which factors affect migratory performance. [Methodology/Principal Finding]: We tracked raptors using GPS satellite transmitters from Sweden, Spain and Italy, and evaluated their migratory performance at both an hourly and a daily scale. Hourly data (flight speed and altitude for intervals of two hours) were analyzed in relation to time of day, species and season, and daily data (distance between roosting sites) in relation to species, season, day length and tailwind support. [Conclusions/Significance]: Despite a clear variation in morphology, interspecific differences were generally very small, and did only arise in spring, with long-distance migrants (>5000 km: osprey and Western marsh-harrier) being faster than species that migrate shorter distances (Egyptian vulture and short-toed eagle). Our results suggest that the most important factor explaining hourly variation in flight speed is time of day, while at a daily scale, tailwind support is the most important factor explaining variation in daily distance, raising new questions about the consequences of possible future changes in worldwide wind patterns.
eng
openAccess
Interspecific comparison of the performance of soaring migrants in relation to morphology, meteorological conditions and migration strategies
artículo
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URL
https://digital.csic.es/bitstream/10261/143406/1/MigrationStrategie.PDF
File
MD5
cb1af540d2e1a1ab231af99731f289a9
858561
application/pdf
MigrationStrategie.PDF