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Morphological consequences of climate change for resident birds in intact Amazonian rainforest

Warming from climate change is expected to reduce body size of endotherms, but studies from temperate systems have produced equivocal results. Over four decades, we collected morphometric data on a nonmigratory understory bird community within Amazonian primary rainforest that is experiencing increa...

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Autores principales: Jirinec, Vitek, Burner, Ryan C., Amaral, Bruna R., Bierregaard, Richard O., Fernández-Arellano, Gilberto, Hernández-Palma, Angélica, Johnson, Erik I., Lovejoy, Thomas E., Powell, Luke L., Rutt, Cameron L., Wolfe, Jared D., Stouffer, Philip C
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8589309/
https://www.ncbi.nlm.nih.gov/pubmed/34767440
http://dx.doi.org/10.1126/sciadv.abk1743
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author Jirinec, Vitek
Burner, Ryan C.
Amaral, Bruna R.
Bierregaard, Richard O.
Fernández-Arellano, Gilberto
Hernández-Palma, Angélica
Johnson, Erik I.
Lovejoy, Thomas E.
Powell, Luke L.
Rutt, Cameron L.
Wolfe, Jared D.
Stouffer, Philip C
author_facet Jirinec, Vitek
Burner, Ryan C.
Amaral, Bruna R.
Bierregaard, Richard O.
Fernández-Arellano, Gilberto
Hernández-Palma, Angélica
Johnson, Erik I.
Lovejoy, Thomas E.
Powell, Luke L.
Rutt, Cameron L.
Wolfe, Jared D.
Stouffer, Philip C
author_sort Jirinec, Vitek
collection PubMed
description Warming from climate change is expected to reduce body size of endotherms, but studies from temperate systems have produced equivocal results. Over four decades, we collected morphometric data on a nonmigratory understory bird community within Amazonian primary rainforest that is experiencing increasingly extreme climate. All 77 species showed lower mean mass since the early 1980s—nearly half with 95% confidence. A third of species concomitantly increased wing length, driving a decrease in mass:wing ratio for 69% of species. Seasonal precipitation patterns were generally better than temperature at explaining morphological variation. Short-term climatic conditions affected all metrics, but time trends in wing and mass:wing remained robust even after controlling for annual seasonal conditions. We attribute these results to pressures to increase resource economy under warming. Both seasonal and long-term morphological shifts suggest response to climate change and highlight its pervasive consequences, even in the heart of the world’s largest rainforest.
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spelling pubmed-85893092021-11-18 Morphological consequences of climate change for resident birds in intact Amazonian rainforest Jirinec, Vitek Burner, Ryan C. Amaral, Bruna R. Bierregaard, Richard O. Fernández-Arellano, Gilberto Hernández-Palma, Angélica Johnson, Erik I. Lovejoy, Thomas E. Powell, Luke L. Rutt, Cameron L. Wolfe, Jared D. Stouffer, Philip C Sci Adv Earth, Environmental, Ecological, and Space Sciences Warming from climate change is expected to reduce body size of endotherms, but studies from temperate systems have produced equivocal results. Over four decades, we collected morphometric data on a nonmigratory understory bird community within Amazonian primary rainforest that is experiencing increasingly extreme climate. All 77 species showed lower mean mass since the early 1980s—nearly half with 95% confidence. A third of species concomitantly increased wing length, driving a decrease in mass:wing ratio for 69% of species. Seasonal precipitation patterns were generally better than temperature at explaining morphological variation. Short-term climatic conditions affected all metrics, but time trends in wing and mass:wing remained robust even after controlling for annual seasonal conditions. We attribute these results to pressures to increase resource economy under warming. Both seasonal and long-term morphological shifts suggest response to climate change and highlight its pervasive consequences, even in the heart of the world’s largest rainforest. American Association for the Advancement of Science 2021-11-12 /pmc/articles/PMC8589309/ /pubmed/34767440 http://dx.doi.org/10.1126/sciadv.abk1743 Text en Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Earth, Environmental, Ecological, and Space Sciences
Jirinec, Vitek
Burner, Ryan C.
Amaral, Bruna R.
Bierregaard, Richard O.
Fernández-Arellano, Gilberto
Hernández-Palma, Angélica
Johnson, Erik I.
Lovejoy, Thomas E.
Powell, Luke L.
Rutt, Cameron L.
Wolfe, Jared D.
Stouffer, Philip C
Morphological consequences of climate change for resident birds in intact Amazonian rainforest
title Morphological consequences of climate change for resident birds in intact Amazonian rainforest
title_full Morphological consequences of climate change for resident birds in intact Amazonian rainforest
title_fullStr Morphological consequences of climate change for resident birds in intact Amazonian rainforest
title_full_unstemmed Morphological consequences of climate change for resident birds in intact Amazonian rainforest
title_short Morphological consequences of climate change for resident birds in intact Amazonian rainforest
title_sort morphological consequences of climate change for resident birds in intact amazonian rainforest
topic Earth, Environmental, Ecological, and Space Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8589309/
https://www.ncbi.nlm.nih.gov/pubmed/34767440
http://dx.doi.org/10.1126/sciadv.abk1743
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