期刊
ECOLOGY AND EVOLUTION
卷 10, 期 21, 页码 12200-12210出版社
WILEY
DOI: 10.1002/ece3.6851
关键词
Copepod; fluctuating selection; phenotypic plasticity; seasonality; thermal tolerance; trade-off
资金
- Division of Ocean Sciences [1559180, 1947965]
- Directorate For Geosciences
- Division Of Ocean Sciences [1559180, 1947965] Funding Source: National Science Foundation
Organisms experience variation in the thermal environment on several different temporal scales, with seasonality being particularly prominent in temperate regions. For organisms with short generation times, seasonal variation is experienced across, rather than within, generations. How this affects the seasonal evolution of thermal tolerance and phenotypic plasticity is understudied, but has direct implications for the thermal ecology of these organisms. Here we document intra-annual patterns of thermal tolerance in two species ofAcartiacopepods (Crustacea) from a highly seasonal estuary, showing strong variation across the annual temperature cycle. Common garden, split-brood experiments indicate that this seasonal variation in thermal tolerance, along with seasonal variation in body size and phenotypic plasticity, is likely affected by genetic polymorphism. Our results show that adaptation to seasonal variation is important to consider when predicting how populations may respond to ongoing climate change.
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