Thermobiology of the Eremias arguta (Pallas, 1773) in the conditions of the Volgograd region and the influence of the temperature factor on the formation of the range of the species

The article presents data on the thermobiology of multi-colored foot-and-mouth disease living on Sarpinsky Island (Kirov district, Volgograd city). There is relatively little information on the thermobiology of the multicolored foot-and-mouth disease in the Volgograd region. In this regard, the purpose of the study was to analyze the temperature conditions of the environment and the body of the multi-colored foot-and-mouth disease in the populations of the Volgograd region. In caught foot-and-mouth disease, the temperature of the esophagus, dorsal and ventral sides of the body was measured. The temperature of the soil surface and air was also measured at the place where the foot-and-mouth disease was found. Temperature measurements were carried out using AKIP-9303 and CEM DT-8820 Environment Meter instruments. Todetermine the dependence of the bodytemperature of E. arguta on environmental conditions, a correlation analysis was performed using the Past program. With the help of the Maxent program, a distribution model of the multi-colored foot-and-mouth disease was compiled. As a result of the research, it was found that in most foot-and-mouth disease the temperature of the esophagus varies from +29.9 to +35.9 °C. The temperature of the dorsal and lower sides of the body varies from +28.9 to +34.7 °C and from +27.2 to +32.5 °C, respectively. Most often, foot-and-mouth disease was on the soil, the temperature of which reached +33.2…+56.8 °C. The temperature of squat air at a height of 3 cm and 20 cm does not differ much and in most cases varies from +31.4 to +49.7 °C. A positive correlation is observed between all indicators, except for the temperature of the dorsal side of the body and the temperature of the soil at the place of capture at a depth of 5 cm. For E. arguta, suitable habitats are found in some areas of Tibet, the Gobi Desert, Kazakhstan, as well as the Volga region of Russia, the Northern Black Sea region. The area occupied by foot-and-mouth disease is most influenced by isothermality (39.3%) and precipitation of the wettest month (18.8%).