Communities of Uropodina (Acari: Mesostigmata) in Nest Boxes Inhabited by Dormice (<i>Glis glis</i> and <i>Muscardinus avellanarius</i>) and Differences in Percentages of Nidicoles in Nests of Various Hosts
Jerzy Błoszyk | Grzegorz Hebda | Marta Kulczak | Michał Zacharyasiewicz | Tomasz Rutkowski | Agnieszka Napierała
Bird and mammal nests and nest boxes constitute microenvironments in which various groups of invertebrates can live, including mites from the suborder Uropodina (Acari: Mesostigmata). The main aim of the current study was to ascertain the characteristics of mite communities from the suborder Uropodina, which inhabit the nests of dormice (Gliridae) built in nest boxes. The second aim of the study was to compare the habitat preferences of <i>Leiodinychus orbicularis</i> (C. L. Koch) and <i>Apionoseius infirmus</i> (Berlese), i.e., two typically nest-dwelling species of Uropodina. The material for the study was collected from nest boxes in six forest complexes in southwestern Poland. The conducted research revealed the presence of five species of Uropodina, with a total number of 559 specimens, in the examined boxes. <i>Leiodinychus orbicularis</i> was found in almost half of all of the examined boxes and was a superdominant species in the communities. The analysis of the habitat preferences of the two nest species of Uropodina showed that <i>A. infirmus</i> preferred old natural nests, in which the communities were formed from a larger number of species, without a significant statistical prevalence of one species. On the other hand, <i>L. orbicularis</i> occurred sporadically in open bird nests, but was very numerous and frequent in nest boxes. The significant dominance of <i>L. orbicularis</i> in nest boxes can probably be explained by the specific conditions prevailing in this type of microhabitat, including the very low humidity and food resources that this mite species prefers compared to other species of Uropodina.
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