L6/7- family conflicts Flashcards
what are key family conflict
what is intersexual conflict
sexual conflict over biparental brood
how do acorn woodpeckers show conflict among co-breeders
female co breeders have 86% first order kin, 14% unrelated
- 38% of eggs laid in joint nest are destroyed by co breeding females
females were destroying eggs laid in the nest before they start laying their own eggs ( eggs like belong to their co breeder)
how do banded mongoose show conflict over reproduction among co breeders
plural breeders with multiple male and female reproducing synchronously
- small subordinate females pre-empt future competition among offspring via spontaneous abortion in large groups and under harsh conditions
how do meerkats show conflict between breeders and helpers
groups comprise of 3-50 individuals
- dominate females and males subordinate females (kin of dom), subordinate males (immigrants)
subordinate females do have litters, but have less litters and fail at higher rates, when subordinates do breed the average weight of meerkats (for dom too) decrease, so sub breeding costly for dominates,