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56 Капрусь І. Я., Мицак О. Я., Савчак О. Р.

Stöcker G., Bergmann A. 1977. Ein Modell der Dominanzstruktur und seine Anwedung. In
Modellbildung, Modellrealisierung, Dominanzklassen. Archiv für Naturschutz und
Landschaftsforschung. B. 17 No 1. S. 1–26.
Väisänen R. 1992. Distribution and abundance of diurnal Lepidoptera on a raised bog in
southern Annales Zoologici Fennici. Vol. 29. P. 75–92.
Whittaker R.H. 1977. Evolution of species diversity in land communities. Evolutionary
Biology. Vol. 10. P. 1–67.

1 Державний природознавчий музей НАН України, м. Львів
e-mail: kaprus63@gmail.com
2 Львівський національний університет імені Івана Франка
e-mail: oleg_mytsak@ukr.net; savchac22@gmail.com

Kaprus I.Ya., Mytsak O.Ya, Savchak O.R.
Population of Collembola of bog ecosystems of the ukrainian part of the International Biosphere
Reserve «Roztochia»
A comparative analysis of the taxonomic and ecological structure of bog collembolan taxocenes of
IBR "Roztochia" was carried out. 67 species of Сollembola belonging to 43 genera and 12 families
were found on the studied territory. The representation of the rare element of collembolofauna (its
uniqueness) is 14.9%. Three species are new to the collembolofauna of Ukraine (Cryptonura kühnelti,
Heteromurus sexoculatus, Isotomurus fucicolus) and one new species is from the continental part of
Ukraine (Tetracanthella proxima). From 1 to 13 species of Сollembola were found at the level of point
alpha diversity, and 5–29 species of coenotic alpha diversity, which indicates a small capacity of the
soil environment for Сollembola in bog ecosystems, сompared to forest and meadow ecosystems. The
investigated bog Collembola taxocenes are characterized by small and average population density
2
indicators, from 0.25 to 9.1 thousand spec./m . It was found that the structure of dominance, spectra of
life forms and biotope groups of the studied taxocenes have their own specificity, due to local edaphic
conditions. The analysis of the ecological structure showed that, in terms of species richness, complexes
of hygro-mesophilic (31.3% of the total species richness), mesophilic (22.4%) and xeroresistant forms
(20.9%) prevail in bog taxocenes of collembola. The studied taxocenes include nine biotope groups of
species. The biotope groups of forest species (28,9%) and species that differentiate the bog type of
ecosystems (bog, near-water, meadow- and forest-bog species) prevails. The share of representatives
of the second group in the studied taxocenes is 14.9% of the total species diversity and 29.5% of the
total abundance. It was established that a mixed collembolan taxocene is formed in bog ecosystems,
where none of the biotope groups reaches 40% of the total abundance.
Key words: Collembola, fauna, MBR «Roztochiа», bog ecosystems, taxonomic composition,
ecological structure