The Evolution of Life History Traits and Their Thermal Plasticity in Daphnia
The Evolution of Life History Traits and Their Thermal Plasticity in Daphnia
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DOI：
10.3390/hydrobiology2010005
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发表时间：
2023-01
期刊：
影响因子：
--
通讯作者：
Larry L. Bowman, Jr.;D. Post
中科院分区：
文献类型：
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作者：
Larry L. Bowman, Jr.;D. Post
很少有研究探讨全球范围内生态地理效应与谱系特异性效应的相对强度，特别是对于变温动物来说，这些生物的内部温度随环境而变化。在这里，我们在物种和种群水平上编制了水蚤生活史特征的全球数据集，并使用这些数据来解析谱系特定效应和气候的相对影响。我们还比较了生活史特征的热响应（可塑性）及其对气候、温度、降水和纬度的依赖性。我们发现生活史特征的进化模式各不相同，但生活史特征的热响应通常遵循随机游走进化模型。我们得出的结论是，水蚤的生活史特征进化并不具有强烈的物种特异性，但在生态地理上是独特的，这表明应该在种群水平上理解水蚤的生活史进化，也可能了解其他变温动物的生活史进化。
Few studies have explored the relative strength of ecogeographic versus lineage-specific effects on a global scale, particularly for poikilotherms, those organisms whose internal temperature varies with their environment. Here, we compile a global dataset of life history traits in Daphnia, at the species-and population-level, and use those data to parse the relative influences of lineage-specific effects and climate. We also compare the thermal response (plasticity) of life history traits and their dependence on climate, temperature, precipitation, and latitude. We found that the mode of evolution for life history traits varies but that the thermal response of life history traits most often follows a random walk model of evolution. We conclude that life history trait evolution in Daphnia is not strongly species-specific but is ecogeographically distinct, suggesting that life history evolution should be understood at the population level for Daphnia and possibly for other poikilotherms.