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Soil mites (Acari, Mesostigmata) from Szczeliniec Wielki in the Stołowe Mountains National Park (SW Poland)
The species composition of mesostigmatid mites in the soil and leaf litter was studied on the Szczeliniec Wielki plateau, which is spatially isolated from similar rocky habitats. A total of 1080 soil samples were taken from June 2004 to September 2005. The samples, including the organic horizon from the herb layer and litter from rock cracks, were collected using steel cylinders (area 40 cm2, depth 0-10 cm). They were generally dominated by Gamasellus montanus, Veigaia nemorensis, and Leptogamasus cristulifer. Rhodacaridae, Parasitidae and Veigaiidae were the most numerously represented families as regards to individuals. Among the 55 recorded mesostigmatid species, 13 species were new to the fauna of the Stołowe National Park. Thus the soil mesostigmatid fauna of the Szczeliniec Wielki plateau is generally poor and at an early stage of succession.
Contribution to the diversity of soil mites (Acari, Gamasida) in southern Croatia (Dalmatia), with some ecological and zoogeographical notes
The species diversity of soil gamasid mites (Acari) in southern Croatia (Dalmatia) was studied in August 2002. In the Krka National Park, Brač Island, and near the town of Makarska, 320 samples were collected from various microhabitats: soil, grass and moss ground cover, wet moss, needle litter, moss covering tree trunks, and decaying wood). Altogether, 2097 mites of 56 gamasid species were recorded. Dominant species were: Polyaspis patavinus (Brač Island), Zercon fageticola (Makarska), and Cheiroseius serratus (Krka National Park). Analyses of ecological preferences and zoogeographic distribution were made for Polyaspis patavinus, Cheiroseius serratus, Zercon fageticola, Z. berlesei, Z. athiasi, Asca nova and A. aphidioides.
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, 1936) in three different forest groups in the Szczeliniec Wielki nature reserve. Abh. Ber. Naturkundesmus. 78: 11–17. K amczyc J., G wiazdowicz D. J. 2009. Soilmites (Acari, Mesostigmata) from Szczeliniec Wielki in the Stołowe Mountains National Park (SW Poland). Biological Lett. 46: 21–27. K arg W. 1993. Acari (Acarina), Milben Parasitiformes (Anactinochaeta), Cohors Gamasina Leach. Raubmilben. Die Tierwelt Deutschlands, VEB Gustav Fischer Verlag (Jena), Teil 59: 1–523. K iełczewski B., W iśniewski J. 1983. Bark beetle acarofauna in different types of forest
Abundance dynamics of mites (Acari) in the peatland of ‘Linie’ Nature Reserve, with particular reference to the Gamasida
The research was conducted in ‘Linie’ Nature Reserve within the Lower Vistula Valley Land-scape Park in central Poland. We analysed the annual abundance dynamics of soil mites as well as changes in gamasid community parameters (abundance, age structure, species diversity). Density changes among the juvenile Gamasida greatly influenced the annual abundance dynamics of mites belonging to that order. Alternations in the abundance dynamics of Platyseius italicus and Zercon zelawaiensis were connected to the appearance of males as well as the density increase in juvenile specimens of those species.