БҚМУ жаршысы - Вестник ЗКГУ ЗКГУ. Вестник, 1-2019 | Seite 358

БҚМУ Хабаршы №1-2019ж. nemorensis preferred the Leucobryo-Pinetum; Amblyseius jugortus and Zercon triangularis preferred the Molinio-Pinetum; preference to Vacciniouliginosi-Pinetum was found in case of Pergamasus brevicornis, Ololaelapsp lacentula and Veigaia transisalae while the conditions in Caricetum lasiocarpae were favorable for the populations of Cheiroseius borealis, Ch. mutilus, Ch. curtipes and Platyseiusitalicus. The high dominance of the latter species was also found in community inhabiting the raised fen Wielkie Torfowisko Batorowskie (Stołowe Mountains National Park, SW Poland) in which it accounted for 57% of Mesostigmata, however, the species of Cheiroseius were not found there [11]. Platyseiusitalicus was also relatively abundant (12.5% of community) in cotton grass plot within Torfowiska Doliny Izery Reserve (Sudety Mountains, SW Poland), however, it was not found in this reserve in a peat bog with mountain pine, spruce stand, and dry meadow [12].At the same time Cheiroseius serratuswas found there in bog (D=0.22%), cotton grass (6.25%) and dry meadow (0.27%) while Ch. borealis in cotton grass only (3.13%). Platyseiusitalicus as gamasine species typically inhabiting wet habitats was also recorded in clusters of sedge in the west coast of the oligotrophic lake MałeGacno within Tuchola Forest [13]. Mites in agrocoenoses and forests. Agroecosystems are artificially held at early or middle stage of succession and in general poorer in Oribatida species and richer in Mesostigmata when compared to e.g. forest areas [14]. In rural areas the mesostigmatid mites are efficient predators of springtails and nematodes in soil as well as spider mites on plants, therefore play important role in pest control, although the abundance of Uropodina is relatively low in agricultural soil when compared to Gamasina [15]. Among Mesostigmata two species usually predominate in agroecosystems: Alliphissiculus and Arctoseius cetratus (Table 3). Table 3 – Predominating species of Mesostigmata in selected cultivations. Percentages given in brackets Tillage Mite species (%) Medicago sativa [16] Alliphis siculus (32.4), Arctoseius cetratus (22.8%), Parasitus eta (20.6) Brassica napus [17] Alliphissiculus (33.7), Paragamasus runciger (15.3) Hordeumvulgare [18] Zercon peltatus (35.1%), Amblyseius obtusus (13.5), Arctoseius cetratus (13.5), Zercoseius spathuliger (13.5) Triticumaestivum [19] Alliphissiculus (94.5) Hordeumvulgare [19] Alliphissiculus (75.4), Arctoseiuscetratus (15.3) Agropyron repens [20] Alliphis siculus (60.6), Pergamasus crassipes (11.3) In coniferous and broadleaved forests Paragamasus runciger, Trachytes aegrota and Veigaia nemorensis usually occur and often predominate (Table 4), however, some exceptions (e.g. predomination of Ascabicornis in Populusserotinastand) shows that forests are much diverse than anthropogenically simplified agroecosystems. In Pine forests (see Table 1) the same mesostigmatid species predominate, however, in more humid stands some hygrophilic and/or hydrophilic species of Mesostigmata occur and illustrate the influence of humidity on the local biodiversity. Interestingly, in relatively small area forest stands surrounded with crops (asterisked entries in Table 4), predomination of Alliphissiculus was found which illustrate the influence of cultivated soil fauna on the species composition of forest islands in agricultural landscape.In case 357