| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Behavioral Ecology Vol. 11 No. 1: 7-12
© 2000 International Society for Behavioral Ecology
Dispersal and new colony formation in wild naked mole-rats: evidence against inbreeding as the system of mating
Biology Department, Washington University, St. Louis, MO 63130, USA, and The International Center for Tropical Ecology, University of Missouri-St. Louis, St. Louis, MO 63121, USA
Address correspondence to S. Braude, Biology Department, Washington University, One Brookings Drive, Box 1137, St. Louis, MO 63130, USA. E-mail: braude{at}biology.wustl.edu .
Early field work on naked mole-rats, Heterocephalus glaber, suggested that small colonies are rare and that colonies can only form by fissioning of existing colonies. Many researchers expected that this would result in extreme inbreeding and high relatedness within colonies and would thus explain the evolution of eusociality in naked mole-rats. Here I report evidence of dispersers and outbreeding in colonies of wild naked mole-rats that suggests that inbreeding is not the system of mating for this species and that outbreeding is probably frequent. Wild dispersers have the same morphology as was reported for dispersers in laboratory colonies. Low levels of genetic variation in previous molecular genetic studies of naked mole-rats probably result from the viscous population structure typical of fossorial rodents.
Key words: dispersal, eusociality, Heterocephalus glaber, inbreeding, naked mole-rat.
![]()
CiteULike
Connotea
Del.icio.us What's this?
This article has been cited by other articles:
![]() |
R. Cooney Colony defense in Damaraland mole-rats, Cryptomys damarensis Behav. Ecol., March 1, 2002; 13(2): 160 - 162. [Abstract] [Full Text] [PDF] |
||||
