Communal Breeding: Clever Defense Against Cheats

Clever and crude but not kind: narcissism, self-esteem, and the self-reference effect.

According to the agency model of narcissism (Campbell, Brunell, & Finkel, 2006) narcissists view themselves as high on agentic traits but low on communal traits. To test if this self-view extends to recall, two experiments examined the extent to which narcissism was associated with self-ratings and recall of agentic and communal traits that varied in valence. Across both experiments a trait des...

Joint care can outweigh costs of nonkin competition in communal breeders

Competition between offspring can greatly influence offspring fitness and parental investment decisions, especially in communal breeders where unrelated competitors have less incentive to concede resources. Given the potential for escalated conflict, it remains unclear what mechanisms facilitate the evolution of communal breeding among unrelated females. Resolving this question requires simulta...

Communal or Separate Rearing of Families in Selective Breeding of Common Carp (Cyprinus carpio L.)

Production and reproduction characteristics of South African indigenous goats in communal farming systems

South African indigenous does in rural communal farming systems kid for the first time at approximately 17 to 18 months of age. Does conceive at a relatively low body condition score (BCS ≈ 2.5 to 3) and their average litter size is 1.7 kids per doe. The average kidding interval was approximately 238 days and the highest kidding rates were attained in autumn (96%), followed by spring (93%), win...

The striped mouse (Rhabdomys pumilio) from the succulent karoo, South Africa: a territorial group-living solitary forager with communal breeding and helpers at the nest.

The authors studied the striped mouse (Rhabdomys pumilio) in the semiarid succulent karoo of South Africa. Mice forage alone, but they live in groups that share a common nest. Groups consist of 1 to 4 breeding females, 1 to 2 breeding males, and their offspring of both sexes, which remain in their natal group even after reaching adulthood, participating in territorial defense and nest building ...