Diadromy Drives Elevated Rates of Trait Evolution and Ecomorphological Convergence in Clupeiformes (Herring, Shad, and Anchovies)
Diadromy Drives Elevated Rates of Trait Evolution and Ecomorphological Convergence in Clupeiformes (Herring, Shad, and Anchovies)
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DOI：
10.1086/726894
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发表时间：
2023-12-01
影响因子：
2.9
通讯作者：
Bloom，Devin D.
中科院分区：
文献类型：
--
作者：
DeHaan，Lindsey M.;Burns，Michael D.;Bloom，Devin D.
迁移可以对表型进化的速率和模式产生深远的影响。Diadromy是在海洋和淡水栖息地之间进行觅食和繁殖的迁徙，可能需要个体旅行数万公里。高能量需求的diadromy预测选择的生态形态特征，最大限度地提高游泳和运动效率。种内研究表明，反复的实例之间的分歧diadromous和nondiadromous种群的运动和觅食性状，这表明，在宏观进化尺度diadromous谱系可能会经历收敛进化到一个或多个适应性最优。我们测试的速度和模式的表型进化之间的差异diadromous和nondiadromous谱系鲱形目，进化diadromy超过10倍。我们的研究结果表明，diadromous clupeiforms显示收敛进化的一些运动性状和更快的进化速度，我们建议的迁移运动需求的适应性反应。我们还发现证据表明，溯河产卵谱系收敛到多个区域的多变量特征空间，并建议这些各自的特征空间与迁移和营养生态学的差异。然而，并不是所有的运动性状和营养性状的证据表明，收敛或提高进化率与diadromy。我们的研究结果表明，长距离迁移影响宏观进化尺度上的表型进化的克里思和模式，但没有一个单一的溯河产卵综合征。
Migration can have a profound influence on rates and patterns of phenotypic evolution. Diadromy is the migration between marine and freshwater habitats for feeding and reproduction that can require individuals to travel tens to thousands of kilometers. The high energetic demands of diadromy are predicted to select for ecomorphological traits that maximize swimming and locomotor efficiency. Intraspecific studies have shown repeated instances of divergence among diadromous and nondiadromous populations in locomotor and foraging traits, which suggests that at a macroevolutionary scale diadromous lineages may experience convergent evolution onto one or multiple adaptive optima. We tested for differences in rates and patterns of phenotypic evolution among diadromous and nondiadromous lineages in Clupeiformes, a clade that has evolved diadromy more than 10 times. Our results show that diadromous clupeiforms show convergent evolution for some locomotor traits and faster rates of evolution, which we propose are adaptive responses to the locomotor demands of migration. We also find evidence that diadromous lineages show convergence into multiple regions of multivariate trait space and suggest that these respective trait spaces are associated with differences in migration and trophic ecology. However, not all locomotor traits and no trophic traits show evidence of convergence or elevated rates of evolution associated with diadromy. Our results show that long-distance migration influences the tempo and patterns of phenotypic evolution at macroevolutionary scales, but there is not a single diadromous syndrome.