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Published on 23 January 2017

ALTITUDE FEATURES OF APHYLLOPHOROID FUNGI BIOTA IN THE REPUBLIC OF ABKHAZIA

S. I. Khacheva

The article cites the research results of biodiversity and ecological characteristics of aphyllophoroid fungus in natural areas of Abkhazia. Distribution principles of aphyllophoroid fungus biota in high-altitude zones are discussed. Identified 200 species of aphyllophoroid fungus belonging to 88 genera, 38 families and 15 orders. The leading families of aphyllophoroid fungus biota are: Polyporaceae, Fomitopsidaceae, Meruliaceae, Hymenochaetaceae, Phanerochaetaceae, Schizoporaceae, including 138 species (69 % of total species diversity). These families hold a leading position in all natural zones of Abkhazia and form a basis of aphyllophoroid fungus biota. The average species richness of the family is 5.3. The average ratio of species richness of the genus is 2.3. The highest species diversity of fungus is identified in the altitude range from 30 to 1700 m. above sea level, in the area of grassroots and foothill Colchis forests, and also in the area of the mountain forests, which includes 93% (186 species) of the total species diversity. Species diversity of fungus is gradually reduced to the extreme values of indicated hypsometric level. In the vegetation zone of lowlands we can observe a depleted species composition of aphyllophoroid fungus (30 species), in the zone of subalpine crooked forests 29 species were identified. Evaluation of similarity and difference of specific structure with use of Syorensen-Chekanovski and Stugren-Radulesku’s binary coefficient of natural Abkhazian zones helped to find out specific peculiarities of aphyllophoroid fungi biota. The meanings of similarity index of aphyllophoroid fungi specific structure (Syorensen-Checanovski’s cofficient) don’t attain high values and vary from 0,2 to 0,33. The information got with use of Stugren-Radulesku’s difference coefficient also shows the high difference level of aphyllophoroid fungi biota of compared Abkhazian natural zones and amounts to 0,59-0,76. Every natural zone is characterized by unique specific structure of aphyllophoroid fungi that depends both on the presence of proper understratum, and optimal ecological conditions. The species adapted to specific habit area conditions and found only in one natural zone amount to 73,5 % of the overall number. The cosmopolite spreading is specific to seven aphyllophoroid fungi species (3,5% from revealed specific variety). About 35 rare aphyllophoroid fungi species are revealed, they are mostly confined to old undisturbed forest ecosystems and specially protected natural territories. The fact that there are 34 indicated species in revealed aphyllophoroid fungi biota shows the biological worth of natural old Abkhazian forests.

City Sukhum
Countrythe Republic of Abkhazia
UDC574.4
Issue2016, № 4(Т.8)
Key words biodiversity, altitudinal zonation, aphyllophoroid fungi, species indicator
Number of views (2810)

Categories: Geo-ecological,-Recreational-and-Biomedical-Issues-of-SDMT

Tags: Биоразнообразие, высотная зональность, афиллофороидные грибы, индикаторные виды

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ISSN 1998-4502 (Print)                                                            ISSN 2499-975Х (Online)