Abstract
The study presents data on the condition of the thalli of epiphytic lichens, their occurrence and projective cover on the sample plots located in the area of the outbreak of Ips sexdentatus Boern on the Maly Abakan site of Khakassky Nature Reserve.
Highlights
The Maly Abakan site of Khakassky State Nature Reserve is situated in the Tashtyp district of the Republic of Khakassia
The small species variability of the epiphytic lichens in the dark coniferous forest may be caused to the high degree of canopy density in the territory under study (0.7-0.8) and by the other factors
Depending on the number of the infested phorophytes, the epiphytic lichens found on the plots could be divided into two groups: stenotopes – species found only on one phorophyte (26 species), and olygotopes – species found on Pinus and Abies (22 species)
Summary
The study was conducted in the mountainous taiga vegetation belt represented by dark coniferous forest. The Siberian nut pine and the fir are the main trees of this forest. Lichens represent one of the significant components of the forest communities. The species composition and the living forms of epiphytic lichens are closely connected with certain environmental factors and naturally vary as the environmental conditions change. Density and extension of the canopies of the trees described is one of such factors [1, 9,10]. The reserve scientists have been investigating the impact of the bark beetle Ips sexdentatus Boern., which results in mass drying out of the trees [3,4,5]
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