Bird and mammal nests provide microhabitats that support a range of other species, including invertebrates. However, the variation between communities of nest-dwelling invertebrates in different nests is poorly understood. The major aim of this study was to analyze the assemblage structure of mites from the suborder Uropodina (Acari: Mesostigmata) and from superfamily Crotonioidea (Acari: Oribatida) inhabiting nests of the wood warbler, Phylloscopus sibilatrix (Aves: Passeriformes), located on a forest floor in Białowieża Forest, in eastern Poland. We also assessed the correlation between the nest material used by the birds with the assemblage structure of Uropodina mites, and compared the results with published studies of the nests of other birds and a mammal (common mole, Talpa europaea), and also with communities of mites inhabiting the soil. The field research was conducted in the strict nature reserve of the Białowieża National Park, a near-primeval European temperate forest. In 2019, immediately after the breeding period, 69 wood warbler nests and 439 soil samples were collected. Analyses revealed assemblages of Uropodina mites inhabiting the nests that consisted of 14 species, mostly common soil species. Only five species of oribatid mites from superfamily Crotonioidea were present in the nest material. Analyzed nests had a high percentage of tree leaves and grass blades, whereas moss was the least frequent component of the nest material. The Uropodina mites were more abundant in the nests that had greater amounts of grass blades, but similar relationships were insignificant for the nests with varying amounts of tree leaves or moss. The assemblages of Uropodina mites inhabiting wood warbler nests were very similar to those found in soil and nests of the common mole, but they lacked typical nest-dwelling species of Uropodina (i.e., specialized nidicoles).

鸟类和哺乳动物的巢提供了微栖息地，这些栖息地支持无脊椎动物等一系列其他物种。但是，人们对不同巢穴中的无脊椎动物栖息地群落之间的差异了解得很少。这项研究的主要目的是分析居住在木莺（Phylloscopus sibilatrix）（Aves：Passeriformes）巢中的Uropodina（Acari：Mesostigmata）亚目和超科Crotonioidea（Acari：Oribatida）的螨的聚集结构。波兰东部的Białowieża森林中的森林地面。我们还评估由鸟Uropodina螨的组合结构中使用的巢材之间的相关性，并与其它鸟类的巢和哺乳动物（共同摩尔的已发表的研究结果，TALPA油橄榄），以及居住在土壤中的螨虫群落。实地研究是在Białowieża国家公园的严格自然保护区内进行的，Białowieża国家公园是欧洲近原始温带森林。在繁殖期之后的2019年，收集了69个木莺巢和439个土壤样品。分析表明，栖于巢中的Uropodina螨群由14种物种组成，其中大多数是常见的土壤物种。巢材料中仅存在五科克氏杆菌科的原虫螨。经分析的巢有很高的百分比的树叶和草叶，而苔藓是巢材料中最不常见的成分。鸟足类的螨虫在巢中的草叶数量较多，巢中的螨虫含量较高，但是对于数量不等的树叶或苔藓的巢，类似的关系并不重要。栖于木莺巢中的Uropodina螨的组合与在普通mole鼠的土壤和巢中发现的非常相似，但它们缺乏典型的Uropodina巢栖物种（即专门的尼古丁）。