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Infracommunity dynamics of chiggers (Trombiculidae) parasitic on a rodent

机译:gg(Trombiculidae)寄生在啮齿动物上的群落下动态

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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:我们研究了寄生在南非啮齿动物Rhabdomys pumilio上的gg螨(Trombiculidae)群落的结构。我们旨在确定:(a)不同的chi种类对宿主某些身体区域的偏好是否不同,以及(b)同一宿主个体的各个身体部位之间的chi集合是否结构化,如果存在,这些集合的结构是否为聚合或隔离。横纹肌被六属的七种chi寄生。三种最丰富的物种(L虫兰属物种,Schoutedenichia属物种和新孢子虫属)在整个宿主体内显示出非随机分布,其中两个最丰富的物种(L. sp。uri属物种和Schoutedenichia属) 。)与尾巴区域明显相关。此外,每当在同一身体区域出现recorded随机共存的情况时,就表明不同物种正向共存,但不是负向共存。这可能是由于chi物种在资源需求和避免东道国防御努力的策略上的相似性。

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