2024-03-30T01:28:49Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1635392021-12-28T15:47:32Zcom_10261_77com_10261_8col_10261_330
DIGITAL.CSIC
author
Thorup, Kasper
author
Tøttrup, Anders P.
author
Willemoes, Mikkel
author
Klaassen, Raymond H. G.
author
Strandberg, Roine
author
Lomas Vega, Marta
author
Dasari, Hari P.
author
Araújo, Miguel B.
author
Wikelski, Martin
author
Rahbek, Carsten
funder
Danish Council for Independent Research
funder
Danish National Research Foundation
funder
European Commission
funder
CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
2018-04-12T09:07:13Z
2018-04-12T09:07:13Z
2017-01-04
Science Advances 3(1): e1601360 (2017)
http://hdl.handle.net/10261/163539
10.1126/sciadv.1601360
2375-2548
http://dx.doi.org/10.13039/501100000780http://dx.doi.org/10.13039/501100001732
28070557
Migratory birds track seasonal resources across and between continents. We propose a general strategy of tracking the broad seasonal abundance of resources throughout the annual cycle in the longest-distance migrating land birds as an alternative to tracking a certain climatic niche or shorter-term resource surplus occurring, for example, during spring foliation. Whether and how this is possible for complex annual spatiotemporal schedules is not known. New tracking technology enables unprecedented spatial and temporal mapping of long-distance movement of birds. We show that three Palearctic-African species track vegetation greenness throughout their annual cycle, adjusting the timing and direction of migratory movements with seasonal changes in resource availability over Europe and Africa. Common cuckoos maximize the vegetation greenness, whereas red-backed shrikes and thrush nightingales track seasonal surplus in greenness. Our results demonstrate that the longest-distance migrants move between consecutive staging areas even within the wintering region in Africa to match seasonal variation in regional climate. End-of-century climate projections indicate that optimizing greenness would be possible but that vegetation surplus might be more difficult to track in the future.
eng
openAccess
Resource tracking within and across continents in long-distance bird migrants
artículo
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URL
https://digital.csic.es/bitstream/10261/163539/1/resorcemigrant.pdf
File
MD5
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application/pdf
resorcemigrant.pdf