Межвидовые различия в показателях двигательной активности мышевидных грызунов

Abstract

Specific differences in fodder specialization of Murinae and Arvicolidae are in a strong interrelation with the degree and type of their motor activity. The difficulties in finding seeds under natural conditions demand from Murinae a more complex behaviour and intensified motor activity in comparison with Arvicolidae feeding on the green-cut fodder. Owing to a high activity and movement speed Murinae, in contrast to Arvicolidae, are able to obtain for a lesser period of activity with fodder a diural norm of calories, necessary for keeping their heat exchange at a high level.