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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Online Access: | http://hdl.handle.net/10919/85346 https://doi.org/10.1371/journal.pone.0088033 |
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ftvirginiatec:oai:vtechworks.lib.vt.edu:10919/85346 2023-12-24T10:17:40+01:00 Rapid Life-History Diversification of an Introduced Fish Species across a Localized Thermal Gradient PLOS ONE Zhu, Fengyue Rypel, Andrew L. Murphy, Brian R. Li, Zhongjie Zhang, Tanglin Yuan, Jing Guo, Zhiqiang Tang, Jianfeng Liu, Jiashou Fish and Wildlife Conservation 2014-02-04 application/pdf http://hdl.handle.net/10919/85346 https://doi.org/10.1371/journal.pone.0088033 en eng PLOS e88033 http://hdl.handle.net/10919/85346 https://doi.org/10.1371/journal.pone.0088033 9 2 24505366 1932-6203 Creative Commons Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ Article - Refereed Text 2014 ftvirginiatec https://doi.org/10.1371/journal.pone.0088033 2023-11-30T19:07:12Z 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. Published version Article in Journal/Newspaper Icefish VTechWorks (VirginiaTech) PLoS ONE 9 2 e88033 |
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VTechWorks (VirginiaTech) |
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ftvirginiatec |
language |
English |
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. Published version |
author2 |
Fish and Wildlife Conservation |
format |
Article in Journal/Newspaper |
author |
Zhu, Fengyue Rypel, Andrew L. Murphy, Brian R. Li, Zhongjie Zhang, Tanglin Yuan, Jing Guo, Zhiqiang Tang, Jianfeng Liu, Jiashou |
spellingShingle |
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 |
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 |
PLOS |
publishDate |
2014 |
url |
http://hdl.handle.net/10919/85346 https://doi.org/10.1371/journal.pone.0088033 |
genre |
Icefish |
genre_facet |
Icefish |
op_relation |
e88033 http://hdl.handle.net/10919/85346 https://doi.org/10.1371/journal.pone.0088033 9 2 24505366 1932-6203 |
op_rights |
Creative Commons Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1371/journal.pone.0088033 |
container_title |
PLoS ONE |
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9 |
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2 |
container_start_page |
e88033 |
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1786205930766991360 |