GEOGRAPHICAL DISTRIBUTION PATTERNS OF GEASTRUM MELANOCEPHALUM (GEASTRACEAE, BASIDIOMYCOTA) IN SIBERIA IN PRESENT AND UNDER CONDITIONS OF CLIMATE CHANGE
Vyacheslav A. Vlasenko1, Dejidmaa Turmunkh2, Anastasiya V. Vlasenko1
1Central Siberian Botanical Garden, SB RAS, Novosibirsk, Russia
vlasenkomyces@mail.ru
2Plant Protection Research Institute of Mongolia, Ulaanbaatar, Mongolia
dejidmaa.chag@gmail.com
Keywords: Species distribution modelling, Asia, rare species
Abstract
Determining the spatial distribution of rare fungal species is critical to understanding the environmental factors that affect them. Maximum entropy (MaxEnt) spatial distribution modeling solves this problem by allowing inferences about species distribution and ecological resistance from occurrence data. Using this method, we mapped the current and potential geographic distribution of the rare species G. melanocephalum. To establish the regularities in the geographical distribution of the studied species in Siberia, we created its distribution models using Wordclim bioclimatic variables and the MaxEnt software. We modelled the species’ habitat suitability under current conditions (~1950-2000 AD) and in a future climate (2100 AD) based on 11 records of the species’ spatial distribution. Most localities of G. melanocephalum in Siberia are 200-500 meters above sea level. The optimal climatic conditions for G. melanocephalum in Siberia are typical of the habitats represented in the Kazakh forest-steppe, South Siberian forest-steppe, and hemiboreal forests of Western Siberia, in the zone of contact between the plains and foothills.
|
