Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14115 |
Urbanization drives contemporary evolution in stream fish | |
Kern, Elizabeth M. A.1,2; Langerhans, R. Brian1,2 | |
2018-08-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:8页码:3791-3803 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Human activities reduce biodiversity but may also drive diversification by modifying selection. Urbanization alters stream hydrology by increasing peak water velocities, which should in turn alter selection on the body morphology of aquatic species. Here, we show how urbanization can generate evolutionary divergence in the body morphology of two species of stream fish, western blacknose dace (Rhinichthys obtusus) and creek chub (Semotilus atromaculatus). We predicted that fish should evolve more streamlined body shapes within urbanized streams. We found that in urban streams, dace consistently exhibited more streamlined bodies while chub consistently showed deeper bodies. Comparing modern creek chub populations with historical museum collections spanning 50years, we found that creek chub (1) rapidly became deeper bodied in streams that experienced increasing urbanization over time, (2) had already achieved deepened bodies 50years ago in streams that were then already urban (and showed no additional deepening over time), and (3) remained relatively shallow bodied in streams that stayed rural over time. By raising creek chub from five populations under common conditions in the laboratory, we found that morphological differences largely reflected genetically based differences, not velocity-induced phenotypic plasticity. We suggest that urbanization can drive rapid, adaptive evolutionary responses to disturbance, and that these responses may vary unpredictably in different species. |
英文关键词 | creek chub global environmental change human impacts morphology phenotypic plasticity Rhinichthys obtusus Semotilus atromaculatus urban streams western blacknose dace |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000437284700041 |
WOS关键词 | LAND-COVER CHANGE ; BODY SHAPE ; PHENOTYPIC PLASTICITY ; MORPHOLOGICAL DIVERGENCE ; LIVEBEARING FISH ; THREESPINE STICKLEBACK ; ATLANTIC SALMON ; URBAN LANDSCAPE ; UNIQUE FEATURES ; UNITED-STATES |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/17171 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.North Carolina State Univ, Dept Biol Sci, Raleigh, NC 27695 USA; 2.North Carolina State Univ, WM Keck Ctr Behav Biol, Raleigh, NC 27695 USA |
推荐引用方式 GB/T 7714 | Kern, Elizabeth M. A.,Langerhans, R. Brian. Urbanization drives contemporary evolution in stream fish[J]. GLOBAL CHANGE BIOLOGY,2018,24(8):3791-3803. |
APA | Kern, Elizabeth M. A.,&Langerhans, R. Brian.(2018).Urbanization drives contemporary evolution in stream fish.GLOBAL CHANGE BIOLOGY,24(8),3791-3803. |
MLA | Kern, Elizabeth M. A.,et al."Urbanization drives contemporary evolution in stream fish".GLOBAL CHANGE BIOLOGY 24.8(2018):3791-3803. |
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