Invertebrate eggs can fly: Evidence of waterfowl-mediated gene flow in aquatic invertebrates
Invertebrate eggs can fly: Evidence of waterfowl-mediated gene flow in aquatic invertebrates
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DOI：
10.1086/427092
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发表时间：
2005-02-01
影响因子：
2.9
通讯作者：
Michot, TC
中科院分区：
文献类型：
--
作者：
Figuerola, J;Green, AJ;Michot, TC
水禽通常被认为是分散淡水水生生物之间的孤立的湿地，但没有人分析这种运输对水生生物种群结构的影响。对于三个枝角类（水蚤ambigua，水蚤laevis，和Sida stac）和苔藓虫（Cristatella mucedo），我们估计的遗传距离在北美使用的几个线粒体DNA基因序列和等位酶和微卫星位点的基因型频率之间的种群。整个北美的水禽运动（估计从带恢复数据）解释了一个显着比例的基因流发生在整个大陆的四个物种中的三个种群之间，即使在控制地理位置之间的距离。第四种是S.堆叠A使繁殖体不太可能在干燥或被鸟类摄取后存活。利用鸟类介导的运输能力的差异可能对水生群落的生态和入侵物种的传播产生重要影响。
Waterfowl often have been assumed to disperse freshwater aquatic organisms between isolated wetlands, but no one has analyzed the impact of this transport on the population structure of aquatic organisms. For three cladocerans (Daphnia ambigua, Daphnia laevis, and Sida crystallina) and one bryozoan (Cristatella mucedo), we estimated the genetic distances between populations across North America using sequences of several mitochondrial DNA genes and genotypic frequencies at allozyme and microsatellite loci. Waterfowl movements across North America (estimated from band recovery data) explained a significant proportion of the gene flow occurring between populations across the continent for three of the four species, even after controlling for geographic distances between localities. The fourth species, S. crystallina, has propagules less likely to survive desiccation or ingestion by birds. Differences in the capacity to exploit bird-mediated transport are likely to have important consequences for the ecology of aquatic communities and the spread of invasive species.