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Infracommunity dynamics of chiggers (Trombiculidae) parasitic on a rodent

机译：鼠李（Trombicilidae）寄生在啮齿动物上的Infrocaconity动态

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摘要

We studied the structure of chigger mite (Trombiculidae) communities parasitic on a South African rodent, Rhabdomys pumilio. We aimed to determine whether: (a) different chigger species differ in preferences for certain body areas of a host and (b) chigger assemblages among body areas of the same host individual, are structured and if so, whether the structure of these assemblages is aggregative or segregative. Rhabdomys pumilio is parasitized by seven chigger species belonging to six genera. The three most abundant species (Leptotrombidium sp. nr. muridium, Schoutedenichia sp. and Neoschoengastia sp. A) displayed a non-random distribution across the host body, with the two most abundant species (L. sp. nr. muridium and Schoutedenichia sp.) significantly associated with the tail area. In addition, whenever non-randomness of chigger co-occurrence in the same body area was recorded, it indicated positive but not negative co-occurrences of different species. This might be due to similarity of chigger species in resource needs and strategies to avoid host defence efforts.
机译：我们研究了恙螨（Trombicilidae）社区寄生在南非啮齿动物，rhabdomys pumilio的结构。我们旨在确定：（a）不同的恙叶物种在主机的某些身体区域的偏好方面和（b）相同主机的身体区域之间的恙芯组件的偏好，是结构的，如果是的，则是这些组件的结构是否是聚合或分离。 rhabdomys pumilio被属于六属的七种恙螨种类寄生。三种最丰富的物种（LeptoTrombidium sp.nr.Muridium，Schoutedenia Sp。A）在宿主体上显示出非随机分布，具有两个最丰富的物种（L. SP。NR。穆里尼亚和Schoutedenia SP 。）与尾部明显相关。此外，每当记录相同体积的恙叶共发生的非随机性时，它表明阳性但不是阴性的不同物种。这可能是由于恙螨种类在资源需求和策略中的相似性，以避免主机防御努力。

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