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首页> 外文期刊>Journal of Parasitology >HOST DIVERSITY AFFECTS PARASITE DIVERSITY: A CASE STUDY INVOLVING UNIONICOLA SPP. INHABITING FRESHWATER MUSSELS
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HOST DIVERSITY AFFECTS PARASITE DIVERSITY: A CASE STUDY INVOLVING UNIONICOLA SPP. INHABITING FRESHWATER MUSSELS

机译：宿主多样性会影响寄生虫多样性：涉及ununicola spp的案例研究。 居住淡水贻贝

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摘要

Water mites of the genus Unionicola are common parasites of freshwater mussels, living on the gills or mantle of their hosts and using these tissues as sites of oviposition. Although surveys of this mite fauna among North American unionid mussels indicate that these mites represent highly diverse assemblages, we know very little regarding the determinants of Unionicola species diversity among their molluscan hosts. The present study addresses the relationship between host diversity and mite diversity for Unionicola assemblages associated with unionid mussels of North America. The results of this study found a significantly positive relationship between host species richness and mite species richness, adding to a growing body of evidence that host diversity is an important determinant of parasite diversity. In recent years, molecular sequence data have discovered cryptic biodiversity among unionid mussels, yielding revisions in the nomenclature and systematic taxonomy of the group. DNA sequence variation has also revealed cryptic species complexes among Unionicola mites. Collectively, these findings suggest that the results of the present study may be underestimating species richness among mites and their host mussels. Unfortunately, human perturbations are known to have caused high recent rates of extinction in the mussel and mite faunas of North America and could play a major role in influencing patterns of species richness for this host-parasite system moving forward.
机译：Unionicola属水螨是淡水贻贝的常见寄生虫，生活在宿主的鳃或外套上，并利用这些组织作为产卵场所。尽管对北美统一贻贝中这种螨类动物群的调查表明，这些螨类代表着高度多样性的组合，但我们对其软体动物宿主中统一贻贝物种多样性的决定因素知之甚少。本研究探讨了与北美Unionicola贻贝有关的Unionicola组合的寄主多样性和螨多样性之间的关系。这项研究的结果发现，寄主物种丰富度和螨类物种丰富度之间存在显著的正相关关系，越来越多的证据表明，寄主多样性是寄生虫多样性的重要决定因素。近年来，分子序列数据发现了统一贻贝中神秘的生物多样性，从而修订了该类贻贝的命名法和系统分类学。DNA序列变异也揭示了银叶螨之间的神秘物种复合体。总的来说，这些发现表明，本研究的结果可能低估了螨虫及其宿主贻贝的物种丰富度。不幸的是，已知人类的干扰导致了北美贻贝和螨类动物群最近的高灭绝率，并可能在影响这种宿主-寄生虫系统的物种丰富度模式方面发挥重要作用。

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