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首页> 外文期刊>Journal of Parasitology >Patterns of species richness among assemblages of Unionicola spp. (Acari: Unionicolidae) inhabiting freshwater mussels (Bivalvia: Unionoida) of North America.
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Patterns of species richness among assemblages of Unionicola spp. (Acari: Unionicolidae) inhabiting freshwater mussels (Bivalvia: Unionoida) of North America.

机译：猪笼草属植物群落中物种丰富度的模式。 （Acari：Unionicolidae）栖息在北美的淡水贻贝（Bivalvia：Unionoida）中。

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摘要

Water mites of Unionicola species are common symbionts of freshwater mussels, living on the gills or mantle and foot of their hosts and using these tissues as sites of oviposition. Although surveys of the mite fauna among North American mussels suggest that these mites represent highly diverse assemblages, there are currently no quantitative data characterizing Unionicola species diversity among their molluscan hosts. The present study addresses patterns of species richness of Unionicola assemblages from freshwater mussels, including the relationship between richness and host specificity among these mites. Results from this study indicate that mite species richness increased significantly with an increase in the number of host individuals sampled. When corrected for sampling effort, there was a positive relationship between host size and mite species richness. Results from this study also reveal a significant relationship between mite species richness and the geographical distribution of host mussels. Overall, the patterns of species richness observed for this study are consistent with those examining the richness of parasitic helminth communities. Because the phylogenetic history of host taxa can have a significant influence on patterns of parasite species richness, studies that correct for the phylogenetic history among host mussels will be required to better understand the role that evolutionary processes have in determining Unionicola species richness. The present study did not indicate a significant relationship between species richness and host specificity and, in not doing so, suggests that the dispersal ability of mites may also play a role in influencing Unionicola species richness. The host recognition behavior and swimming abilities for a larger sample of mites will be required to substantiate this hypothesis.
机译：Unionicola种类的水螨是淡水贻贝的常见共生体，生活在其寄主的g或地幔和脚下，并将这些组织用作产卵的部位。尽管对北美贻贝螨类动物的调查显示，这些螨类代表了高度多样化的种群，但目前尚无定量数据可以表征其软体动物寄主中的Unionicola物种多样性。本研究解决了淡水贻贝中Unionicola组合物种丰富度的模式，包括这些螨中丰富度与寄主特异性之间的关系。这项研究的结果表明，随着采样的寄主个体数量的增加，螨类物种的丰富度显着增加。如果对抽样工作进行校正，寄主大小与螨类物种丰富度之间存在正相关关系。这项研究的结果还揭示了螨类物种丰富度与寄主贻贝地理分布之间的显着关系。总体而言，本研究观察到的物种丰富度模式与研究寄生蠕虫群落的丰富度的模式一致。由于寄主类群的系统发生历史可能会对寄生虫物种丰富度的模式产生重大影响，因此需要进行研究以纠正寄主贻贝之间的系统发生历史，以更好地了解进化过程在确定烟粉虱物种丰富度中的作用。本研究没有表明物种丰富度和宿主特异性之间的显着关系，并且如果没有这样做，则表明螨虫的扩散能力也可能在影响菊粉属物种丰富度中起作用。要证明这一假设，就需要有更多的螨虫宿主识别行为和游泳能力。

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