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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ftpubmed:oai:pubmedcentral.nih.gov:3913745 2023-05-15T16:42:06+02:00 Rapid Life-History Diversification of an Introduced Fish Species across a Localized Thermal Gradient Zhu, Fengyue Rypel, Andrew L. Murphy, Brian R. Li, Zhongjie Zhang, Tanglin Yuan, Jing Guo, Zhiqiang Tang, Jianfeng Liu, Jiashou 2014-02-04 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3913745 https://doi.org/10.1371/journal.pone.0088033 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3913745 http://dx.doi.org/10.1371/journal.pone.0088033 This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2014 ftpubmed https://doi.org/10.1371/journal.pone.0088033 2014-02-09T01:49:39Z 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. Text Icefish PubMed Central (PMC) PLoS ONE 9 2 e88033 |
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Research Article Zhu, Fengyue Rypel, Andrew L. Murphy, Brian R. Li, Zhongjie Zhang, Tanglin Yuan, Jing Guo, Zhiqiang Tang, Jianfeng Liu, Jiashou Rapid Life-History Diversification of an Introduced Fish Species across a Localized Thermal Gradient |
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Research Article |
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 |
Text |
author |
Zhu, Fengyue Rypel, Andrew L. Murphy, Brian R. Li, Zhongjie Zhang, Tanglin Yuan, Jing Guo, Zhiqiang Tang, Jianfeng Liu, Jiashou |
author_facet |
Zhu, Fengyue Rypel, Andrew L. Murphy, Brian R. Li, Zhongjie Zhang, Tanglin Yuan, Jing Guo, Zhiqiang Tang, Jianfeng Liu, Jiashou |
author_sort |
Zhu, Fengyue |
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 |
publishDate |
2014 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3913745 https://doi.org/10.1371/journal.pone.0088033 |
genre |
Icefish |
genre_facet |
Icefish |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3913745 http://dx.doi.org/10.1371/journal.pone.0088033 |
op_rights |
This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0088033 |
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PLoS ONE |
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e88033 |
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