Testing variation of locomotor activity and work within families of a social African mole-rat (\kur{Fukomys darlingi}), using the Trovan technology electronic identification system

Activity of social mole-rats´ and their contribution to work and cooperative tasks are explained by two different types of polyethism, caste and age polyethism. Behavioural castes, based on different contributions to cooperative tasks were defined in many mole- rats´ species. However, additional experiments which would simulate higher working activity through manipulation with substrate or removal of some family members are rare. Contrary, in field and different laboratory studies, differences between individuals in the amount of work performed and task allocation were rather continual, and based on age (body mass). This study reveals locomotor and working activity of five families of Fukomys darlingi (43 individuals) which were obtained by radio-identification monitoring system and personal observation. Each family was tested twice, for the first time established families were tested and then after removal of most active workers. The Activity is related to individuals´ body mass, sex and reproductive status