Limited flexibility in departure timing of migratory passerines at the East-Mediterranean flyway

Abstract The rapid pace of current global warming lead to the advancement of spring migration in the majority of long-distance migratory bird species. While data on arrival timing to breeding grounds in Europe is plentiful, information from the African departure sites are scarce. Here we analysed ch...

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Autores principales:	Yaara Aharon-Rotman, Gidon Perlman, Yosef Kiat, Tal Raz, Amir Balaban, Takuya Iwamura
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0fcdddeefee34f4687b6d6bcdaa64dab
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spelling	oai:doaj.org-article:0fcdddeefee34f4687b6d6bcdaa64dab2021-12-02T15:53:58ZLimited flexibility in departure timing of migratory passerines at the East-Mediterranean flyway10.1038/s41598-021-83793-x2045-2322https://doaj.org/article/0fcdddeefee34f4687b6d6bcdaa64dab2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83793-xhttps://doaj.org/toc/2045-2322Abstract The rapid pace of current global warming lead to the advancement of spring migration in the majority of long-distance migratory bird species. While data on arrival timing to breeding grounds in Europe is plentiful, information from the African departure sites are scarce. Here we analysed changes in arrival timing at a stopover site in Israel and any links to Enhanced Vegetation Index (EVI) on the species-specific African non-breeding range in three migratory passerines between 2000–2017. Differences in wing length between early and late arriving individuals were also examined as a proxy for migration distance. We found that male redstart, but not females, advanced arrival to stopover site, but interestingly, not as a response to EVI phenology. Blackcap and barred warbler did not shift arrival timing significantly, although the arrival of blackcap was dependent on EVI. Barred warbler from the early arrival phase had longer wings, suggesting different populations. Our study further supports the existence species-specific migration decisions and inter-sexual differences, which may be triggered by both exogenous (local vegetation condition) and endogenous cues. Given rapid rate of changes in environmental conditions at higher latitudes, some migrants may experience difficulty in the race to match global changes to ensure their survival.Yaara Aharon-RotmanGidon PerlmanYosef KiatTal RazAmir BalabanTakuya IwamuraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yaara Aharon-Rotman Gidon Perlman Yosef Kiat Tal Raz Amir Balaban Takuya Iwamura Limited flexibility in departure timing of migratory passerines at the East-Mediterranean flyway
description	Abstract The rapid pace of current global warming lead to the advancement of spring migration in the majority of long-distance migratory bird species. While data on arrival timing to breeding grounds in Europe is plentiful, information from the African departure sites are scarce. Here we analysed changes in arrival timing at a stopover site in Israel and any links to Enhanced Vegetation Index (EVI) on the species-specific African non-breeding range in three migratory passerines between 2000–2017. Differences in wing length between early and late arriving individuals were also examined as a proxy for migration distance. We found that male redstart, but not females, advanced arrival to stopover site, but interestingly, not as a response to EVI phenology. Blackcap and barred warbler did not shift arrival timing significantly, although the arrival of blackcap was dependent on EVI. Barred warbler from the early arrival phase had longer wings, suggesting different populations. Our study further supports the existence species-specific migration decisions and inter-sexual differences, which may be triggered by both exogenous (local vegetation condition) and endogenous cues. Given rapid rate of changes in environmental conditions at higher latitudes, some migrants may experience difficulty in the race to match global changes to ensure their survival.
format	article
author	Yaara Aharon-Rotman Gidon Perlman Yosef Kiat Tal Raz Amir Balaban Takuya Iwamura
author_facet	Yaara Aharon-Rotman Gidon Perlman Yosef Kiat Tal Raz Amir Balaban Takuya Iwamura
author_sort	Yaara Aharon-Rotman
title	Limited flexibility in departure timing of migratory passerines at the East-Mediterranean flyway
title_short	Limited flexibility in departure timing of migratory passerines at the East-Mediterranean flyway
title_full	Limited flexibility in departure timing of migratory passerines at the East-Mediterranean flyway
title_fullStr	Limited flexibility in departure timing of migratory passerines at the East-Mediterranean flyway
title_full_unstemmed	Limited flexibility in departure timing of migratory passerines at the East-Mediterranean flyway
title_sort	limited flexibility in departure timing of migratory passerines at the east-mediterranean flyway
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0fcdddeefee34f4687b6d6bcdaa64dab
work_keys_str_mv	AT yaaraaharonrotman limitedflexibilityindeparturetimingofmigratorypasserinesattheeastmediterraneanflyway AT gidonperlman limitedflexibilityindeparturetimingofmigratorypasserinesattheeastmediterraneanflyway AT yosefkiat limitedflexibilityindeparturetimingofmigratorypasserinesattheeastmediterraneanflyway AT talraz limitedflexibilityindeparturetimingofmigratorypasserinesattheeastmediterraneanflyway AT amirbalaban limitedflexibilityindeparturetimingofmigratorypasserinesattheeastmediterraneanflyway AT takuyaiwamura limitedflexibilityindeparturetimingofmigratorypasserinesattheeastmediterraneanflyway
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Limited flexibility in departure timing of migratory passerines at the East-Mediterranean flyway

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