Barn swallows long-distance migration occurs between significantly temperature-correlated areas

Abstract Organisms are routinely confronted with crucial decisions on the best time and place to perform fundamental activities. However, unpredictable spatio-temporal variation in ecological factors makes life-history optimization difficult particularly for long-distance migrants, which are putativ...

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Autores principales:	Mattia Pancerasa, Roberto Ambrosini, Nicola Saino, Renato Casagrandi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2fb03e2427ed4b1e80d62aba354547a4
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spelling	oai:doaj.org-article:2fb03e2427ed4b1e80d62aba354547a42021-12-02T15:09:04ZBarn swallows long-distance migration occurs between significantly temperature-correlated areas10.1038/s41598-018-30849-02045-2322https://doaj.org/article/2fb03e2427ed4b1e80d62aba354547a42018-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-30849-0https://doaj.org/toc/2045-2322Abstract Organisms are routinely confronted with crucial decisions on the best time and place to perform fundamental activities. However, unpredictable spatio-temporal variation in ecological factors makes life-history optimization difficult particularly for long-distance migrants, which are putatively blind of conditions thousands of kilometers and weeks ahead along their journey. Here we challenge, on a hierarchy of geographical scales, the common wisdom that migratory birds have no clue to ecological conditions at destination. Using ringing data of the inter-continental migrating barn swallow (Hirundo rustica), we show that temperatures at breeding sites and at times of arrival from migration are more correlated with those at actual wintering sites and at times of departure than with those at other sites and at periods before/after departure. Hence, individual swallows have clues to adjust timing of spring migration based on expected conditions at destination, and they apparently choose wintering sites to increase availability of such information.Mattia PancerasaRoberto AmbrosiniNicola SainoRenato CasagrandiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mattia Pancerasa Roberto Ambrosini Nicola Saino Renato Casagrandi Barn swallows long-distance migration occurs between significantly temperature-correlated areas
description	Abstract Organisms are routinely confronted with crucial decisions on the best time and place to perform fundamental activities. However, unpredictable spatio-temporal variation in ecological factors makes life-history optimization difficult particularly for long-distance migrants, which are putatively blind of conditions thousands of kilometers and weeks ahead along their journey. Here we challenge, on a hierarchy of geographical scales, the common wisdom that migratory birds have no clue to ecological conditions at destination. Using ringing data of the inter-continental migrating barn swallow (Hirundo rustica), we show that temperatures at breeding sites and at times of arrival from migration are more correlated with those at actual wintering sites and at times of departure than with those at other sites and at periods before/after departure. Hence, individual swallows have clues to adjust timing of spring migration based on expected conditions at destination, and they apparently choose wintering sites to increase availability of such information.
format	article
author	Mattia Pancerasa Roberto Ambrosini Nicola Saino Renato Casagrandi
author_facet	Mattia Pancerasa Roberto Ambrosini Nicola Saino Renato Casagrandi
author_sort	Mattia Pancerasa
title	Barn swallows long-distance migration occurs between significantly temperature-correlated areas
title_short	Barn swallows long-distance migration occurs between significantly temperature-correlated areas
title_full	Barn swallows long-distance migration occurs between significantly temperature-correlated areas
title_fullStr	Barn swallows long-distance migration occurs between significantly temperature-correlated areas
title_full_unstemmed	Barn swallows long-distance migration occurs between significantly temperature-correlated areas
title_sort	barn swallows long-distance migration occurs between significantly temperature-correlated areas
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/2fb03e2427ed4b1e80d62aba354547a4
work_keys_str_mv	AT mattiapancerasa barnswallowslongdistancemigrationoccursbetweensignificantlytemperaturecorrelatedareas AT robertoambrosini barnswallowslongdistancemigrationoccursbetweensignificantlytemperaturecorrelatedareas AT nicolasaino barnswallowslongdistancemigrationoccursbetweensignificantlytemperaturecorrelatedareas AT renatocasagrandi barnswallowslongdistancemigrationoccursbetweensignificantlytemperaturecorrelatedareas
_version_	1718387928950898688

Barn swallows long-distance migration occurs between significantly temperature-correlated areas

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