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  Kaprus I.Ya., Mytsak O.Ya
Seasonal changes in the structure of the bog taxocene of Collembola of the «Zalizna voda» forest park (Lviv) // Proc. of the State Nat. Hist. Mus. - Lviv, 2024. - 40. - P. 59-68 DOI: https://doi.org/10.36885/nzdpm.2024.40.59-68 Key words: synecology, fauna, Collembola, urban forest park, bog biotope, species diversity, ecological structure An analysis of the taxonomic and ecological structure of the bog taxocene of collembola of the «Zalizna voda» forest park in the city of Lviv in different seasons of the year was carried out. 36 species of collembola belonging to 24 genera and 12 families were found in the investigated urboecosystem. It has been established that a characteristic feature of the studied bog collembolan taxocene is its great species diversity, super-specialization and super-dominance, which are preserved in different seasons of the year. It was found that the point alpha-diversity in different seasons of the year varies from 6 to 16 species, and the coenotic alpha-diversity - 23-27 species, which indicates a large capacity of the soil environment for collembola in this bog urboecosystem, compared to the natural bog ecosystems of Roztochchia region. The investigated taxocene of collembola are also characterized by high population density in different seasons of the year, from 11.34 to 15.48 thousand inhabitants/m2. In certain seasons of the year, from 3 to 5 mass (dominant) species were established, which account for 66.4-83.6% of the collembolan population. Over the entire period of research, the invasive species D. trispinata was superdominant, the share of which in certain seasons of the year was 57.4-68.6% of the population. The analysis of the ecological structure showed that in terms of species richness and abundance, it is dominated by complexes of hygro-mesophilic (11 species, 76.8% of the total abundance), hygrophilic (9, 11.3%) and mesophilic (9, 7.7%) springtails. The studied taxocene includes seven biotope groups of species. Among them, representatives from the group of meadow-bog (65.4% of the population), erytopic (10%), forest and forest-meadow (18% in total) species of Collembola predominate in terms of relative abundance. It has been established that a super-specialized bog taxocene of Collembola is formed in the studied ecosystem, where the share of specialized species to this bog edaphotope (meadow-bog, bog and arroundwater) is more than 70% of the total abundance.  
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