Біорізноманіття сосняків у Цуманському лісництві (Ківерцівський національний природний парк “Цуманська пуща”, Україна). Частина 1

According to the results of field studies during the growing season of 2022, 17 species of vascular plants and representatives of 33 animal taxa were found in the pine forests of the Tsuman Forestry of the Kivertsi National Nature Park “Tsumanska Pushcha” in the Volyn region. Three plots in square 5, section 14 of the Tsuman Forestry were surveyed during the growing season (May 14, 2022, May 28, 2022, June 11, 2022, and September 25, 2022). The forest stand is represented by Pinus sylvestris L. plantations, which are dominant in the first tier, and isolated specimens of Quercus robur L. and Carpinus betulus L. in the second tier. The shrub tier is poorly developed and represented by isolated specimens of Corylus avellana L. and Frangula alnus Mill. In the subshrub layer, Vaccinium myrtillus L. is a constant species, with occasional patches of V. vitis-idaea L. In the herb layer, Convallaria majalis L., Dryopteris carthusiana (Vill.) H. P. Fuchs, Luzula pilosa (L.) Willd., Maianthemum bifolium (L.) F. Wchmidt, Melampyrum pratense L., Pteridium aquilinum (L.) Kuhn, Trientalis europaea L. and Festuca ovina L. as a constant species. The moss layer is represented by Pleurozium schreberi (Brid.) Mitt. with clumps of Polytrichum commune Hedw. and Dicranum polysetum Sw. The distance of the study area from the town of Tsuman and highways contributed to the preservation of the vegetation cover: the aboriginal flora of the pine forest is represented by typical boreal (10 species; 58.8%), nemoral (5 species; 29.4%), and boreal-nemoral species (2 species; 11.8%), which indicates the absolute preservation of the flora. The eudominant group of invertebrates was represented by various orders of the class Insecta (42.31% of the total number of collected individuals). The dominant position was occupied by Collembola (20.76%) of the orders Poduromorpha and Symphypleona, Sarcoptiformes (20.40%), Araneae spiders (14.12%), and Hymenoptera (13.87%), in particular Formicidae ants (12.47%). The largest faunal diversity (3.59 and 3.52) is characteristic of, respectively, the illuminated areas of the pine-blueberry forest and the “windows,” which also have the highest faunal similarity index (0.95).