Local Selection and Latitudinal Variation in a Marine Predator-Prey Interaction
Local Selection and Latitudinal Variation in a Marine Predator-Prey Interaction
复制标题
海洋捕食者-猎物相互作用中的局部选择和纬度变化
DOI：
10.1126/science.1083437
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发表时间：
2003
期刊：
影响因子：
56.9
通讯作者：
G. Somero
中科院分区：
文献类型：
--
作者：
E. Sanford;Melissa S. Roth;G. C. Johns;J. Wares;G. Somero
尽管物种对经常在广阔的地理范围内相互作用，但很少有研究探讨相互作用如何在这些大的空间尺度上变化。沿着北美太平洋海岸 1500 公里的调查记录了 Nucella canaliculata 蜗牛捕食潮间带贻贝 Mytilus californianus 的频率存在显着变化。实验室饲养实验表明，钻探行为的区域差异具有遗传基础，线粒体序列变异证实这些蜗牛种群中的基因流较低。相隔数百公里的海洋群落可能具有本质上不同的动态，其相互作用是由有限的基因流和空间变化的选择形成的。
Although pairs of species often interact over broad geographic ranges, few studies have explored how interactions vary across these large spatial scales. Surveys along 1500 kilometers of the Pacific coast of North America documented marked variation in the frequency of predation by the snail Nucella canaliculata on the intertidal mussel Mytilus californianus. Laboratory rearing experiments suggest that regional differences in drilling behavior have a genetic basis, and mitochondrial sequence variation confirms that gene flow is low among these snail populations. Marine communities separated by hundreds of kilometers may have intrinsically different dynamics, with interactions shaped by restricted gene flow and spatially varying selection.