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The habitats of «Stilske Gorbohirya» RLP and adjacent territories were studied, their sozological value was assessed. 34 types of habitat have been identified in the study area, which by origin can be divided into 2 groups: anthropogenic (15) and natural (19). Anthropogenic habitats are represented by permanent mesotrophic lakes, ponds and pools (C1.2), highly artificial broadleaved deciduous forestry plantations (G1.C) and coniferous plantations (G3.F), scattered residential agrocultural and public buildings (J2.1), rural industrial and commercial sites still in active use (J2.3), trampled areas (Н5.6), active opencast mineral extraction sites, including quarries (J3.2), recently abandoned above-ground spaces of extractive industrial sites (J3.3), disused underground mines and tunnels (Н1.7) as well as agricultural land: mixed crops of market gardens and horticulture (І1.2), anthropogenic herb stands (Е5.1), unttendent fruit and nut tree orchards (G1.D) permanent mesotrophic pastures and aftermath-grazed meadows (Е2.1). The vegetation of anthropogenic settlements is represented by the classes: Molinio-Arrhenatheretea TX. 1937 – on fallow lands, Galio-Urticetea Passarge ex Kopecký 1969 – in old gardens and on paths; Artemisietea vulgaris Lohmeyer et al. in Tx. ex Von. Rochow 1951 – on the territory of quarries. Natural habitats are represented by springs and spring brooks (С2.1), permanent non-tidal, smooth-flowing watercourses (C2.3), temporary running waters (C2.5), water-fringing reedbeds and tall helophytes other than canes (C3.2), sparsely vegetated shores with soft or mobile sediments (C3.6), beds of large sedges normally without free-standing water (D5.2), inland sand and rock with open vegetation (E1.1), moist or wet eutrophic and mesotrophic grassland (E3.4), thermophile woodland fringes (Е5.2), Pteridium aquilinum fields (Е 5.3), temperate thickets and scrub (F3.1), riverine scrub (F9.1), riverine willow woodland (G1.1), mixed riparian floodplain and gallery woodland (G1.2), beech woodland (G1.6), scots pine woodland south of the taiga (G3.4), open cave entrances (Н1.1), calcareous and ultra-basic screes of warm exposures (H2.6) basic and ultra-basic inland cliffs (H3.2). 17 species of vascular plants were identified in the Red Book of Ukraine and 5 regionally rare species, also among mosses - 13 regionally rare species and two new ones for the Opillia region. The habitats of wet mesotrophic (floodplain) meadows, thermophilic edges, and beech forests have the greatest conservation value, where the largest number of rare plant species of European importance, the Red Book of Ukraine, and regional nature conservation lists are concentrated.

Characteristics of the natural conditions (vegetation and soil cover, moisture regime) of the meadow biotopes of the Transcarpathian lowland were investigated. It was established that the determining factor for the formation of collembola communities in the meadow biotopes of the Transcarpathian lowland is the stability of the moisture regime.

Abstract. The Satanivska Dacha tract in Khmelnytskyi Oblast, Ukraine, is unique in that Fagus sylvatica L. grows here at the edge of its geographic range. In 2017, the forest community was included in the trans-European World Heritage site ‘Primeval beech forests and ancient forests of the Carpathians and other regions of Europe" by UNESCO under the name Site No. 61 ‘Satan’s Dacha.’ In the territory of the tract, 163 species of vertebrates have been recorded, including 12 species of amphibians, 6 species of reptiles, 96 species of birds, and 50 species of mammals, which are representatives of 24 orders. Within the world heritage site, 72 species of vertebrates have been recorded: 7 species of amphibians, 3 species of reptiles, 39 species of birds, and 23 species of mammals. There are 135 species of vertebrates that have protection statuses and included in the Red Data Book of Ukraine (33 species), Regional Red List (23 species), Bern (134 species), Bonn (43 species), and Washington (17 species) conventions. Of higher plants, 234 species have been recorded, including 169 species within the world heritage site, and 7 species are included in the Red Data Book of Ukraine (2009, 2021) and 5 species are included in the CITES list. The List of Regionally Rare Species in Need of Protection in Khmelnytskyi Oblast includes 24 species that were found in the Satanivska Dacha tract, of which 17 species grow in the territory of the world heritage site. The bryoflora of the tract consists of 98 bryophytes. The mycoflora, according to preliminary studies, includes 61 species of fungi and fungus-like organisms. According to the EUNIS classification, rare biotopes represent the following type—G: Woodland, forest and other wooded land; G 1.6: Beech forests (Fagus woodland). Three rare associations have been identified that have a synsozological status according to the Directive of the Council of Europe 92/43/EEC. The population status of Allium ursinum L., Galanthus nivalis L., Epipactis purpura Smith, Epipactis helleborine (L.) Crantz, and Barbastella barbastellus Schreber was monitored. The territory is characterised by a high potential as an environment for the self-regeneration of the biota on the whole. Continuation of monitoring programmes of this type is extremely important.