The Structure of Ecological-Climatical Niches of Poa palustris L. аnd P. nemoralis L. (Poaceae) in the Territory of Asian Russia
M. V. OLONOVA, T. S. VYSOKIKH, N. S. MEZINA
Tomsk state university, 634050, Tomsk, Lenin ave., 36
Keywords: эколого-климатическое моделирование, MаxЕnt, Роа, распространение, ecologo-climatical niches modeling, distribution
Abstract
Each species besides of having the unique morphological pattern, also has a unique ecological and climatic niche and a geographical range. The study of ecological-climatic and geographic divergence can make significant contribution to understanding of the species genesis and its volume. The purpose of this paper was to compare the ecologo-climatical niches of related species Poa palustris L., P. nemoralis L. and populations, which combined the morphological features of both and treated here as hybridogenous species P. intricata Wien. in order to reveal their identity. The research allowed to specify the areas of these species. Using GIS methods and based on the points of presence their ecologo-climatical niches were revealed. Then, taking into account 6 independent bioclimatic characters, their potential ranges - areas where the climatic conditions are favorable for growth - were identified and ecologo-climatical niches compared. It was established that the ecologo-climatical niches of three species, generated by MaxEnt, showed their differences at a statistically significant level.
|
