Chrono-Geographic Approach to the Analysis of Variability of a Bicyclic Species Erebia ligea (L.) (Lepidoptera: Satyridae) in the Urals
E. Yu. ZAKHAROVA1, A. G. TATARINOV2
1Institute of Plant and Animal Ecology, UB RAS, 620144, Yekaterinburg, 8 Marta str., 202
2Institute of Biology of the Komi Science Centre, UB RAS, 167982, Syktyvkar, Kommunisticheskaya str., 28
Keywords: хроногеографический подход, изменчивость, Урал, климатические факторы, природные популяции, бициклический вид, Erebia ligea, chrono-geographic approach, variability, the Urals, climatic factors, natural populations, bicyclic species, Erebia ligea
Abstract
The phenotypic variation of the morphological traits complex (length of fore and hind wings and diameters of wing eyespot patterns) in the populations of a Trans-Eurasian species Erebia ligea in different landscape and climatic conditions of the Urals region was analyzed. It was shown that protandry, bicyclicity and imago emergence in odd-numbered years were characteristic of E. ligea in the Urals. Geographic variability of imago size was characterized by the cline with a gradual increase in the north-south direction. The chrono-geographical approach allowed us to establish the scale of the observed differences: chronographic variability had the biggest impact on morphological traits; then went sexual and geographical factors. The least effect on the morphological traits complex had the seasonal factor, i.e the moment of imago emergence during the generation flight.
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