Patterns of sex-biased dispersal are consistent with social and ecological constraints in a group-living cichlid fish.

ABSTRACT:

Background

Sex-biased dispersal is a common and widespread phenomenon that can fundamentally shape the genetic structure of the social environments in which animals live. For animals that live in and move between social groups, sex-biased dispersal can result in an asymmetry in the degree of relatedness among cohabiting males and females, which can have strong implications for their social evolution. In this study, we measured the relatedness structure within and across groups of a wild population of Neolamprologus multifasciatus, a highly-social, shell-dwelling cichlid fish endemic to Lake Tanganyika, East Africa. In total, we genotyped 812 fish from 128 social groups at 20 microsatellite loci. Neolamprologus multifasciatus live at high densities, and also experience strong ecolog

SUBMITTER: Bose APH 

PROVIDER: S-EPMC8889715 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature