Current contrasting population trends among North American hummingbirds

Abstract As pollinators, hummingbirds play a critical role for both the function of ecological communities and in providing ecosystem services for people. To examine the conservation status of North American hummingbirds, we analyzed Breeding Bird Survey data for 8 species and 3 genera from 1970 to...

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Autores principales:	Simon G. English, Christine A. Bishop, Scott Wilson, Adam C. Smith
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/032f6c8c70f2490ea6b9e590fe18c7a7
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id	oai:doaj.org-article:032f6c8c70f2490ea6b9e590fe18c7a7
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spelling	oai:doaj.org-article:032f6c8c70f2490ea6b9e590fe18c7a72021-12-02T18:33:51ZCurrent contrasting population trends among North American hummingbirds10.1038/s41598-021-97889-x2045-2322https://doaj.org/article/032f6c8c70f2490ea6b9e590fe18c7a72021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97889-xhttps://doaj.org/toc/2045-2322Abstract As pollinators, hummingbirds play a critical role for both the function of ecological communities and in providing ecosystem services for people. To examine the conservation status of North American hummingbirds, we analyzed Breeding Bird Survey data for 8 species and 3 genera from 1970 to 2019 (long-term) and from 2009 to 2019 (short-term, approximately three generations). Among the Selasphorus genus, Allen’s, rufous, and broad-tailed hummingbirds have declined since 1970, and the rate of decline increased from 2009 to 2019. Contrasting the trends from the past half-century, ruby-throated hummingbirds of Eastern North America have declined since approximately 2004 throughout most of the species’ breeding range. In contrast, Anna’s hummingbird populations have increased dramatically since 1970 in their range in western North America. We also tested whether apparent declines might be due to a growing mismatch between the timing of breeding and the timing of BBS surveys. We found no evidence for such an effect, thus supporting the hypothesis that trends reflect true demographic change. Our analyses and geographic modelling highlight the urgent need of regulatory action to conserve hummingbirds uniquely capable of filling their niche in North America.Simon G. EnglishChristine A. BishopScott WilsonAdam C. SmithNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Simon G. English Christine A. Bishop Scott Wilson Adam C. Smith Current contrasting population trends among North American hummingbirds
description	Abstract As pollinators, hummingbirds play a critical role for both the function of ecological communities and in providing ecosystem services for people. To examine the conservation status of North American hummingbirds, we analyzed Breeding Bird Survey data for 8 species and 3 genera from 1970 to 2019 (long-term) and from 2009 to 2019 (short-term, approximately three generations). Among the Selasphorus genus, Allen’s, rufous, and broad-tailed hummingbirds have declined since 1970, and the rate of decline increased from 2009 to 2019. Contrasting the trends from the past half-century, ruby-throated hummingbirds of Eastern North America have declined since approximately 2004 throughout most of the species’ breeding range. In contrast, Anna’s hummingbird populations have increased dramatically since 1970 in their range in western North America. We also tested whether apparent declines might be due to a growing mismatch between the timing of breeding and the timing of BBS surveys. We found no evidence for such an effect, thus supporting the hypothesis that trends reflect true demographic change. Our analyses and geographic modelling highlight the urgent need of regulatory action to conserve hummingbirds uniquely capable of filling their niche in North America.
format	article
author	Simon G. English Christine A. Bishop Scott Wilson Adam C. Smith
author_facet	Simon G. English Christine A. Bishop Scott Wilson Adam C. Smith
author_sort	Simon G. English
title	Current contrasting population trends among North American hummingbirds
title_short	Current contrasting population trends among North American hummingbirds
title_full	Current contrasting population trends among North American hummingbirds
title_fullStr	Current contrasting population trends among North American hummingbirds
title_full_unstemmed	Current contrasting population trends among North American hummingbirds
title_sort	current contrasting population trends among north american hummingbirds
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/032f6c8c70f2490ea6b9e590fe18c7a7
work_keys_str_mv	AT simongenglish currentcontrastingpopulationtrendsamongnorthamericanhummingbirds AT christineabishop currentcontrastingpopulationtrendsamongnorthamericanhummingbirds AT scottwilson currentcontrastingpopulationtrendsamongnorthamericanhummingbirds AT adamcsmith currentcontrastingpopulationtrendsamongnorthamericanhummingbirds
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Current contrasting population trends among North American hummingbirds

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