Social modulation of the daily activity rhythm in a solitary subterranean rodent, the tuco-tuco (Ctenomys sp)

TOMOTANI BM; AMAYA J P ; ODA A G; VALENTINUZZI V

sleep science

elsevier

Año: 2016

South American subterranean rodents are mainly described as solitary and mutualsynchronization was never observed among individuals maintained together inlaboratory. We report that a single birth event was capable of disrupting the robust nocturnal activity rhythm of singly housed tuco-tucos from north-west Argentina.?Around-the-clock activity? was displayed by 8 out of 13 animals whose cages were closer to the newborn pups. However, experimental exposure to a pup vocalization did not produce a similar effect on the rhythms of adult animals. Our results indicate an effect of social interaction in the expression of biological rhythms even in solitary animals.