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Alternative reproductive adaptations predict asymmetric responses to climate change in lizards

Anthropogenic climate change ranks among the major global-scale threats to modern biodiversity. Extinction risks are known to increase via the interactions between rapid climatic alterations and environmentally-sensitive species traits that fail to adapt to those changes. Accumulating evidence revea...

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Autores principales: Jara, Manuel, García-Roa, Roberto, Escobar, Luis E., Torres-Carvajal, Omar, Pincheira-Donoso, Daniel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6433898/
https://www.ncbi.nlm.nih.gov/pubmed/30911069
http://dx.doi.org/10.1038/s41598-019-41670-8
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author Jara, Manuel
García-Roa, Roberto
Escobar, Luis E.
Torres-Carvajal, Omar
Pincheira-Donoso, Daniel
author_facet Jara, Manuel
García-Roa, Roberto
Escobar, Luis E.
Torres-Carvajal, Omar
Pincheira-Donoso, Daniel
author_sort Jara, Manuel
collection PubMed
description Anthropogenic climate change ranks among the major global-scale threats to modern biodiversity. Extinction risks are known to increase via the interactions between rapid climatic alterations and environmentally-sensitive species traits that fail to adapt to those changes. Accumulating evidence reveals the influence of ecophysiological, ecological and phenological factors as drivers underlying demographic collapses that lead to population extinctions. However, the extent to which life-history traits influence population responses to climate change remains largely unexplored. The emerging ‘cul-de-sac hypothesis’ predicts that reptilian viviparity (‘live-bearing’ reproduction), a ‘key innovation’ facilitating historical invasions of cold climates, increases extinction risks under progressively warming climates compared to oviparous reproduction – as warming advances polewards/mountainwards, historically cold-climates shrink, leading viviparous species to face demographic collapses. We present the first large-scale test of this prediction based on multiple lizard radiations and on future projections of climate-based ecological niche models. Viviparous species were found to experience stronger elevational range shifts (and potentially increased extinctions) in coming decades, compared to oviparous lizards. Therefore, our analyses support the hypothesis’s fundamental prediction that elevational shifts are more severe in viviparous species, and highlight the role that life-history adaptations play in the responses of biodiversity to ongoing climate change.
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spelling pubmed-64338982019-04-02 Alternative reproductive adaptations predict asymmetric responses to climate change in lizards Jara, Manuel García-Roa, Roberto Escobar, Luis E. Torres-Carvajal, Omar Pincheira-Donoso, Daniel Sci Rep Article Anthropogenic climate change ranks among the major global-scale threats to modern biodiversity. Extinction risks are known to increase via the interactions between rapid climatic alterations and environmentally-sensitive species traits that fail to adapt to those changes. Accumulating evidence reveals the influence of ecophysiological, ecological and phenological factors as drivers underlying demographic collapses that lead to population extinctions. However, the extent to which life-history traits influence population responses to climate change remains largely unexplored. The emerging ‘cul-de-sac hypothesis’ predicts that reptilian viviparity (‘live-bearing’ reproduction), a ‘key innovation’ facilitating historical invasions of cold climates, increases extinction risks under progressively warming climates compared to oviparous reproduction – as warming advances polewards/mountainwards, historically cold-climates shrink, leading viviparous species to face demographic collapses. We present the first large-scale test of this prediction based on multiple lizard radiations and on future projections of climate-based ecological niche models. Viviparous species were found to experience stronger elevational range shifts (and potentially increased extinctions) in coming decades, compared to oviparous lizards. Therefore, our analyses support the hypothesis’s fundamental prediction that elevational shifts are more severe in viviparous species, and highlight the role that life-history adaptations play in the responses of biodiversity to ongoing climate change. Nature Publishing Group UK 2019-03-25 /pmc/articles/PMC6433898/ /pubmed/30911069 http://dx.doi.org/10.1038/s41598-019-41670-8 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Jara, Manuel
García-Roa, Roberto
Escobar, Luis E.
Torres-Carvajal, Omar
Pincheira-Donoso, Daniel
Alternative reproductive adaptations predict asymmetric responses to climate change in lizards
title Alternative reproductive adaptations predict asymmetric responses to climate change in lizards
title_full Alternative reproductive adaptations predict asymmetric responses to climate change in lizards
title_fullStr Alternative reproductive adaptations predict asymmetric responses to climate change in lizards
title_full_unstemmed Alternative reproductive adaptations predict asymmetric responses to climate change in lizards
title_short Alternative reproductive adaptations predict asymmetric responses to climate change in lizards
title_sort alternative reproductive adaptations predict asymmetric responses to climate change in lizards
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6433898/
https://www.ncbi.nlm.nih.gov/pubmed/30911069
http://dx.doi.org/10.1038/s41598-019-41670-8
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