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Features of the biological diversity of the Kruglaya Bay and the prospects for creating an ornithological reserve (southwestern Crimea, Black Sea)

V.E. Giragosov, N.A. Milchakova, E.P. Karpova, S A. Kovardakov, L.V. Bondareva

Section: Population ecology

This work aimed to analyze the diversity of hydrophilic avifauna and natural complexes to substantiate the creation of an ornithological reserve in the Kruglaya Bay (Crimea, Black Sea). The diversity of biotopes, marine and coastal flora, and fauna characterized on the basis of long-term research data. The avifauna includes 74 species from 43 genera, 14 families, and 9 orders. The orders Charadriiformes, Anseriformes and Ciconiiformes unite 57 species (77% of the total number of species). The number of birds in winter reaches 0.99–1.38 thousand individuals. There are 11 protected species in the avifauna, including 10 species listed in the Red Data Book of the Russian Federation. The natural complexes of the bay are most attractive for wintering hydrophilic birds, and to a lesser extent – for transit migrating, nomadic and nesting species. The flora of marine macrophytes and coastal vascular plants comprises 141 species, including 17 protected ones. The ichthyofauna and benthic invertebrates contain 60 and 124 species, respectively, including 9 protected ones. The high environmental value of the bay is associated with the formation of large seasonal clusters of hydrophilic birds, a high degree of biota diversity, the presence of many protected species and biotopes. We are recommended to create an ornithological reserve with a temporary regime (in winter) in the Kruglaya Bay. The new reserve will be the first ornithological object of this category in the nature-protected network of Sevastopol and Crimea. Its formation will allow to preserve biotopes and nesting places of birds, rare flora and fauna, and introduce some restrictions on environmental management and extraction of bioresources.

Keywords: hydrophilic birds, biota, biocenosis, specially protected natural areas, Sevastopol, Black Sea

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Article published in number 3 for 2023
DOI: 10.25750/1995-4301-2023-3-179-185