Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/24702
COMPARTIR / EXPORTAR:
SHARE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Influence of sea surface winds on shearwater migration detours |
Autor: | González-Solís, Jacob; Felicísimo, Ángel M.; Fox, J. W.; Afanasyev, Vsevolod; Kolbeinsson, Yann; Muñoz Fuente, Jesús CSIC ORCID | Palabras clave: | Migration costs Wind influence Bird flight Shearwaters Global location sensing Geolocator |
Fecha de publicación: | 2009 | Editor: | Inter Research | Citación: | Marine Ecology Progress Series: 391: 221–230 (2009) | Resumen: | To test the potential effects of winds on the migratory detours of shearwaters, transequatorial migrations of 3 shearwaters, the Manx Puffinus puffinus, the Cory’s Calonectris diomedea, and the Cape Verde C. edwardsii shearwaters were tracked using geolocators. Concurrent data on the direction and strength of winds were obtained from the NASA SeaWinds scatterometer to calculate daily impedance models reflecting the resistance of sea surface winds to the shearwater movements. From these models we estimated relative wind-mediated costs for the observed synthesis pathway obtained from tracked birds, for the shortest distance pathway and for other simulated alternative pathways for every day of the migration period. We also estimated daily trajectories of the minimum cost pathway and compared distance and relative costs of all pathways. Shearwaters followed 26 to 52% longer pathways than the shortest distance path. In general, estimated wind-mediated costs of both observed synthesis and simulated alternative pathways were strongly dependent on the date of departure. Costs of observed synthesis pathways were about 15% greater than the synthesis pathway with the minimum cost, but, in the Cory’s and the Cape Verde shearwaters, these pathways were on average 15 to 20% shorter in distance, suggesting the extra costs of the observed pathways are compensated by saving about 2 travelling days. In Manx shearwaters, however, the distance of the observed synthesis pathway was 25% longer than that of the lowest cost synthesis pathway, probably because birds avoided shorter but potentially more turbulent pathways. Our results suggest that winds are a major determinant of the migratory routes of seabirds. | Versión del editor: | http://www.int-res.com/articles/theme/m391p221.pdf | URI: | http://hdl.handle.net/10261/24702 | ISSN: | 1616-1599 (online) |
Aparece en las colecciones: | (RJB) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
2009_Gonzalez-Solis_al_MarEcolProgrSer_391_221-230.pdf | 856,49 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
Page view(s)
319
checked on 19-abr-2024
Download(s)
183
checked on 19-abr-2024
Google ScholarTM
Check
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.