Some peculiarities of thermobiology of Gobi racerunner Eremias przewalskii (Strauch, 1976) (Squamata: Lacertidae) in Tuva

Influence of different temperature environmental factors during the spring-summer period on the vital functions of Gobi Racerunner Eremias przewalskii tuvensis Szczerbak, 1970 is shown in the article. During the active period of the day in Gobi Racerunner four forms of behavior are distinguished, each of them is realized in the certain range of body temperatures: heating (19,6-35,9°C), complex behavior (33,9-40,3°C), cooling (44,3°C), secondary heating (23,2°C). Form of the secondary complex behavior was not recorded by us and it is distinguished only hypothetically. The mean value of body temperature was 34,2±0,88°C. The preferred temperature expressed through the value of the mode is 37°C. Thermoecological minimum and maximum of body temperatures during the period of observations was 23,2°C and 44,3°C, of environmental temperatures 22,5°C and 42°C. Connection of body temperature with all three temperature characteristics of the environment (air temperature, soil temperature in the shadow and soil temperature in the sun) is reliable. The strongest connection of body temperature is observed with soil temperature in the shadow and air temperature at the distance of 3 cm from the surface (r s=0,77), and the least strong connection is observed with soil temperature in the sunshine (r s=0,72).