Sex-biased dispersal and inbreeding avoidance in birds and mammals

Trends Ecol Evol. 1987 Oct;2(10):295-9. doi: 10.1016/0169-5347(87)90081-4.


Sex differences in dispersal distance are widespread in birds and mammals, but the predominantly dispersing sex differs consistently between the classes. There has been persistent debate over the relative importance of two factors - intrasexual competition and inbreeding avoidance - in producing sex-biased dispersal, and over the sources of the difference in dispersal patterns between the two classes. Recent studies cast new light on these questions.