Alternative reproductive adaptation predicts asymmetric responses to climate change in lizards

Jara, M., García-Roa, R., Escobar, L.E., Torres-Carvajal, O. and Pincheira-Donoso, D. ORCID: 0000-0002-0050-6410, 2019. Alternative reproductive adaptation predicts asymmetric responses to climate change in lizards. Scientific Reports, 9: 5093. ISSN 2045-2322

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Abstract

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.

Item Type: Journal article
Publication Title: Scientific Reports
Creators: Jara, M., García-Roa, R., Escobar, L.E., Torres-Carvajal, O. and Pincheira-Donoso, D.
Publisher: Springer Nature
Date: 25 March 2019
Volume: 9
ISSN: 2045-2322
Identifiers:
NumberType
10.1038/s41598-019-41670-8DOI
Rights: © the author(s) 2019. 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/.
Divisions: Schools > School of Science and Technology
Depositing User: Jill Tomkinson
Date Added: 21 Mar 2019 12:41
Last Modified: 03 Apr 2019 07:04
URI: http://irep.ntu.ac.uk/id/eprint/36119

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