In social species across the animal kingdom, conspecific outsiders threaten the valuable resources of groups and their members. This outgroup conflict is recognised as a powerful …
Helping by group members is predicted to lead to delayed senescence by affecting the trade- off between current reproduction and future survival for dominant breeders. Here we …
Many animals live in stable groups, where sexually mature individuals delay dispersal and stay as nonbreeding subordinates, seemingly counter to their own evolutionary interests …
Inbreeding results in more homozygous offspring that should suffer reduced fitness, but it can be difficult to quantify these costs for several reasons. First, inbreeding depression may …
Natal dispersal is a crucial life-history trait that affects both individual fitness and population structure, yet drivers of variation in dispersal probability and distance are difficult to study in …
Why sexually mature individuals stay in groups as nonreproductive subordinates is central to the evolution of sociality and cooperative breeding. To understand such delayed …
Cooperatively breeding societies show distinct interspecific variations in social and genetic organization. Long-term studies provide invaluable data to further our understanding of the …
Studies of social birds and mammals have produced extensive theory regarding the formation and dynamics of kin-based social groups in vertebrates. However, comparing kin …
DH Brunton, B Evans, T Cope, W Ji - Behavioral Ecology, 2008 - academic.oup.com
The “dear enemy” hypothesis proposes that the level of territorial aggression toward conspecific neighbors is lower than that shown toward strangers primarily because of …