Increasing phenological asynchrony between spring green-up and arrival of migratory birds

Abstract Consistent with a warming climate, birds are shifting the timing of their migrations, but it remains unclear to what extent these shifts have kept pace with the changing environment. Because bird migration is primarily cued by annually consistent physiological responses to photoperiod, but...

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Autores principales:	Stephen J. Mayor, Robert P. Guralnick, Morgan W. Tingley, Javier Otegui, John C. Withey, Sarah C. Elmendorf, Margaret E. Andrew, Stefan Leyk, Ian S. Pearse, David C. Schneider
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8034a32b52b84011839d876f08a76539
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spelling	oai:doaj.org-article:8034a32b52b84011839d876f08a765392021-12-02T16:06:10ZIncreasing phenological asynchrony between spring green-up and arrival of migratory birds10.1038/s41598-017-02045-z2045-2322https://doaj.org/article/8034a32b52b84011839d876f08a765392017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02045-zhttps://doaj.org/toc/2045-2322Abstract Consistent with a warming climate, birds are shifting the timing of their migrations, but it remains unclear to what extent these shifts have kept pace with the changing environment. Because bird migration is primarily cued by annually consistent physiological responses to photoperiod, but conditions at their breeding grounds depend on annually variable climate, bird arrival and climate-driven spring events would diverge. We combined satellite and citizen science data to estimate rates of change in phenological interval between spring green-up and migratory arrival for 48 breeding passerine species across North America. Both arrival and green-up changed over time, usually in the same direction (earlier or later). Although birds adjusted their arrival dates, 9 of 48 species did not keep pace with rapidly changing green-up and across all species the interval between arrival and green-up increased by over half a day per year. As green-up became earlier in the east, arrival of eastern breeding species increasingly lagged behind green-up, whereas in the west—where green-up typically became later—birds arrived increasingly earlier relative to green-up. Our results highlight that phenologies of species and trophic levels can shift at different rates, potentially leading to phenological mismatches with negative fitness consequences.Stephen J. MayorRobert P. GuralnickMorgan W. TingleyJavier OteguiJohn C. WitheySarah C. ElmendorfMargaret E. AndrewStefan LeykIan S. PearseDavid C. SchneiderNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Stephen J. Mayor Robert P. Guralnick Morgan W. Tingley Javier Otegui John C. Withey Sarah C. Elmendorf Margaret E. Andrew Stefan Leyk Ian S. Pearse David C. Schneider Increasing phenological asynchrony between spring green-up and arrival of migratory birds
description	Abstract Consistent with a warming climate, birds are shifting the timing of their migrations, but it remains unclear to what extent these shifts have kept pace with the changing environment. Because bird migration is primarily cued by annually consistent physiological responses to photoperiod, but conditions at their breeding grounds depend on annually variable climate, bird arrival and climate-driven spring events would diverge. We combined satellite and citizen science data to estimate rates of change in phenological interval between spring green-up and migratory arrival for 48 breeding passerine species across North America. Both arrival and green-up changed over time, usually in the same direction (earlier or later). Although birds adjusted their arrival dates, 9 of 48 species did not keep pace with rapidly changing green-up and across all species the interval between arrival and green-up increased by over half a day per year. As green-up became earlier in the east, arrival of eastern breeding species increasingly lagged behind green-up, whereas in the west—where green-up typically became later—birds arrived increasingly earlier relative to green-up. Our results highlight that phenologies of species and trophic levels can shift at different rates, potentially leading to phenological mismatches with negative fitness consequences.
format	article
author	Stephen J. Mayor Robert P. Guralnick Morgan W. Tingley Javier Otegui John C. Withey Sarah C. Elmendorf Margaret E. Andrew Stefan Leyk Ian S. Pearse David C. Schneider
author_facet	Stephen J. Mayor Robert P. Guralnick Morgan W. Tingley Javier Otegui John C. Withey Sarah C. Elmendorf Margaret E. Andrew Stefan Leyk Ian S. Pearse David C. Schneider
author_sort	Stephen J. Mayor
title	Increasing phenological asynchrony between spring green-up and arrival of migratory birds
title_short	Increasing phenological asynchrony between spring green-up and arrival of migratory birds
title_full	Increasing phenological asynchrony between spring green-up and arrival of migratory birds
title_fullStr	Increasing phenological asynchrony between spring green-up and arrival of migratory birds
title_full_unstemmed	Increasing phenological asynchrony between spring green-up and arrival of migratory birds
title_sort	increasing phenological asynchrony between spring green-up and arrival of migratory birds
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/8034a32b52b84011839d876f08a76539
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Increasing phenological asynchrony between spring green-up and arrival of migratory birds

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