Fuel loads acquired at a stopover site influence the pace of intercontinental migration in a boreal songbird

Abstract Long-distance migratory organisms are under strong selection to migrate quickly. Stopovers demand more time than flying and are used by individuals to refuel during migration, but the effect of fuel loads (fat) acquired at stopover sites on the subsequent pace of migration has not been quan...

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Autores principales:	Camila Gómez, Nicholas J. Bayly, D. Ryan Norris, Stuart A. Mackenzie, Kenneth V. Rosenberg, Philip D. Taylor, Keith A. Hobson, Carlos Daniel Cadena
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b11479afe5de4e87853c800d686c1bf1
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spelling	oai:doaj.org-article:b11479afe5de4e87853c800d686c1bf12021-12-02T16:07:45ZFuel loads acquired at a stopover site influence the pace of intercontinental migration in a boreal songbird10.1038/s41598-017-03503-42045-2322https://doaj.org/article/b11479afe5de4e87853c800d686c1bf12017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03503-4https://doaj.org/toc/2045-2322Abstract Long-distance migratory organisms are under strong selection to migrate quickly. Stopovers demand more time than flying and are used by individuals to refuel during migration, but the effect of fuel loads (fat) acquired at stopover sites on the subsequent pace of migration has not been quantified. We studied stopover behaviour of Grey-cheeked Thrush (Catharus minimus) at a site in northern Colombia and then tracked their migration using an intercontinental radio-telemetry array. Tracking confirmed long-distance flights of more than 3000 km, highlighting the key importance of a single stopover site to the migration strategy of this species. Our results suggest that these songbirds behave as time-minimizers as predicted by optimal migration theory, and that fuel loads acquired at this South American stopover site, together with departure date, carry-over to influence the pace of migration, contributing to differences in travel time of up to 30 days in birds subsequently detected in the U. S. and Canada. Such variation in the pace of migration arising from a single stopover site, likely has important fitness consequences and suggests that identifying important fuelling sites will be essential to effectively conserve migratory species.Camila GómezNicholas J. BaylyD. Ryan NorrisStuart A. MackenzieKenneth V. RosenbergPhilip D. TaylorKeith A. HobsonCarlos Daniel CadenaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Camila Gómez Nicholas J. Bayly D. Ryan Norris Stuart A. Mackenzie Kenneth V. Rosenberg Philip D. Taylor Keith A. Hobson Carlos Daniel Cadena Fuel loads acquired at a stopover site influence the pace of intercontinental migration in a boreal songbird
description	Abstract Long-distance migratory organisms are under strong selection to migrate quickly. Stopovers demand more time than flying and are used by individuals to refuel during migration, but the effect of fuel loads (fat) acquired at stopover sites on the subsequent pace of migration has not been quantified. We studied stopover behaviour of Grey-cheeked Thrush (Catharus minimus) at a site in northern Colombia and then tracked their migration using an intercontinental radio-telemetry array. Tracking confirmed long-distance flights of more than 3000 km, highlighting the key importance of a single stopover site to the migration strategy of this species. Our results suggest that these songbirds behave as time-minimizers as predicted by optimal migration theory, and that fuel loads acquired at this South American stopover site, together with departure date, carry-over to influence the pace of migration, contributing to differences in travel time of up to 30 days in birds subsequently detected in the U. S. and Canada. Such variation in the pace of migration arising from a single stopover site, likely has important fitness consequences and suggests that identifying important fuelling sites will be essential to effectively conserve migratory species.
format	article
author	Camila Gómez Nicholas J. Bayly D. Ryan Norris Stuart A. Mackenzie Kenneth V. Rosenberg Philip D. Taylor Keith A. Hobson Carlos Daniel Cadena
author_facet	Camila Gómez Nicholas J. Bayly D. Ryan Norris Stuart A. Mackenzie Kenneth V. Rosenberg Philip D. Taylor Keith A. Hobson Carlos Daniel Cadena
author_sort	Camila Gómez
title	Fuel loads acquired at a stopover site influence the pace of intercontinental migration in a boreal songbird
title_short	Fuel loads acquired at a stopover site influence the pace of intercontinental migration in a boreal songbird
title_full	Fuel loads acquired at a stopover site influence the pace of intercontinental migration in a boreal songbird
title_fullStr	Fuel loads acquired at a stopover site influence the pace of intercontinental migration in a boreal songbird
title_full_unstemmed	Fuel loads acquired at a stopover site influence the pace of intercontinental migration in a boreal songbird
title_sort	fuel loads acquired at a stopover site influence the pace of intercontinental migration in a boreal songbird
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/b11479afe5de4e87853c800d686c1bf1
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Fuel loads acquired at a stopover site influence the pace of intercontinental migration in a boreal songbird

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