Rapid life-history diversification of an introduced fish species across a localized thermal gradient.

Climatic variations are known to engender life-history diversification of species and populations at large spatial scales. However, the extent to which microgeographic variations in climate (e.g., those occurring within a single large ecosystem) can also drive life-history divergence is generally po...

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Autores principales:	Fengyue Zhu, Andrew L Rypel, Brian R Murphy, Zhongjie Li, Tanglin Zhang, Jing Yuan, Zhiqiang Guo, Jianfeng Tang, Jiashou Liu
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d980e37913b740dab7ee35bf878190bc
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spelling	oai:doaj.org-article:d980e37913b740dab7ee35bf878190bc2021-11-18T08:33:53ZRapid life-history diversification of an introduced fish species across a localized thermal gradient.1932-620310.1371/journal.pone.0088033https://doaj.org/article/d980e37913b740dab7ee35bf878190bc2014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24505366/?tool=EBIhttps://doaj.org/toc/1932-6203Climatic variations are known to engender life-history diversification of species and populations at large spatial scales. However, the extent to which microgeographic variations in climate (e.g., those occurring within a single large ecosystem) can also drive life-history divergence is generally poorly documented. We exploited a spatial gradient in water temperatures at three sites across a large montane lake in southwest China (Lake Erhai) to examine the extent to which life histories of a short-lived fish species (icefish, Neosalanx taihuensis) diversified in response to thermal regime following introduction 25 y prior. In general, warmwater icefish variants grew faster, had larger adult body size and higher condition and fecundity, but matured at smaller sizes. Conversely, coldwater variants had smaller adult body size and lower condition, but matured at larger sizes and had larger eggs. These life-history differences strongly suggest that key ecological trade-offs exist for icefish populations exposed to different thermal regimes, and these trade-offs have driven relatively rapid diversification in the life histories of icefish within Lake Erhai. Results are surprisingly concordant with current knowledge on life-history evolution at macroecological scales, and suggest that improved conservation management might be possible by focusing on patterns operating at microgeographical, including, within-ecosystem scales.Fengyue ZhuAndrew L RypelBrian R MurphyZhongjie LiTanglin ZhangJing YuanZhiqiang GuoJianfeng TangJiashou LiuPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 2, p e88033 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fengyue Zhu Andrew L Rypel Brian R Murphy Zhongjie Li Tanglin Zhang Jing Yuan Zhiqiang Guo Jianfeng Tang Jiashou Liu Rapid life-history diversification of an introduced fish species across a localized thermal gradient.
description	Climatic variations are known to engender life-history diversification of species and populations at large spatial scales. However, the extent to which microgeographic variations in climate (e.g., those occurring within a single large ecosystem) can also drive life-history divergence is generally poorly documented. We exploited a spatial gradient in water temperatures at three sites across a large montane lake in southwest China (Lake Erhai) to examine the extent to which life histories of a short-lived fish species (icefish, Neosalanx taihuensis) diversified in response to thermal regime following introduction 25 y prior. In general, warmwater icefish variants grew faster, had larger adult body size and higher condition and fecundity, but matured at smaller sizes. Conversely, coldwater variants had smaller adult body size and lower condition, but matured at larger sizes and had larger eggs. These life-history differences strongly suggest that key ecological trade-offs exist for icefish populations exposed to different thermal regimes, and these trade-offs have driven relatively rapid diversification in the life histories of icefish within Lake Erhai. Results are surprisingly concordant with current knowledge on life-history evolution at macroecological scales, and suggest that improved conservation management might be possible by focusing on patterns operating at microgeographical, including, within-ecosystem scales.
format	article
author	Fengyue Zhu Andrew L Rypel Brian R Murphy Zhongjie Li Tanglin Zhang Jing Yuan Zhiqiang Guo Jianfeng Tang Jiashou Liu
author_facet	Fengyue Zhu Andrew L Rypel Brian R Murphy Zhongjie Li Tanglin Zhang Jing Yuan Zhiqiang Guo Jianfeng Tang Jiashou Liu
author_sort	Fengyue Zhu
title	Rapid life-history diversification of an introduced fish species across a localized thermal gradient.
title_short	Rapid life-history diversification of an introduced fish species across a localized thermal gradient.
title_full	Rapid life-history diversification of an introduced fish species across a localized thermal gradient.
title_fullStr	Rapid life-history diversification of an introduced fish species across a localized thermal gradient.
title_full_unstemmed	Rapid life-history diversification of an introduced fish species across a localized thermal gradient.
title_sort	rapid life-history diversification of an introduced fish species across a localized thermal gradient.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/d980e37913b740dab7ee35bf878190bc
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Rapid life-history diversification of an introduced fish species across a localized thermal gradient.

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