ANT100Y1 Lecture Notes - Sperm Competition, Follicular Phase, Mate Choice
49
ANT100Y1 Full Course Notes
Verified Note
49 documents
Document Summary
One for all and breeding for one: cooperation and competition as a tamarin. Tamarins (saguinus) composed of social group containing more than one adult of each sex (many males and maybe more than one female) but in the breeding system only one female in the group gives birth (dominant female) Emigration by both males and females in callitrichids. There is intense competition for reproductive success. Within-group intrasexual (between members of the same sex) aggression is rare (but there is still competition) Callitrichids tamarins, marmosets, & goeldi"s monkey (type of marmoset) 29 species ranging in size from 120 g (pygmy marmoset) to 620 g (golden lion tamarin) Intense female breeding competition (usually one breeding female per group) Cooperative care of the young (many take care of the infants) Can eat: plant excludes (gums and saps), insects, small vertebrates. Males are caregivers, and there isn"t much sexual dimorphism. They were believed to be monogamous at first (not necessarily the case)
