A comprehensive assessment of the ravine-gully network and buffer zone at the V. P. Engelhardt Astronomical Observatory of Kazan Federal University (Republic of Tatarstan) revealed 94 vascular plant species, 17 species of mosses, 4 species of liverwort, 99 species of basidiomycete macrofungi, 73 myxomycete species, and a significant number of rare species. The habitats supporting rare ferns and mosses exhibit markedly different biotic and abiotic conditions compared to the adjacent woodlands bordering the ravine. Microclimate conditions along the ravine slopes differed markedly: air humidity was double that of adjacent areas (ranging from 62% to 74%), light availability was reduced by half, and temperatures were 2-3°C cooler. Analysis of rare plant distribution via ordination, incorporating ecological scales, identified a strong association of these species with remnants of old-growth zonal spruce-broadleaf forest communities. Indicator species of fungi and myxomycetes identified on deadwood (fallen logs and standing dead trees) clearly demonstrate their host specificity for and .
Fardeeva et al. (Wed,) studied this question.
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