Behavior, ecology and genetics of Geoffroy's tamarin (Saguinus geoffroyi)

摘要: Cooperative behavior in reproductive contexts is rare among animals, especially males. Tamarins exhibit a breeding system called cooperative polyandry, which single female mates with two or more males to produce fraternal twins and the cooperate caring for infants by carrying young first 10 weeks of their lives. This peculiar raises questions about adaptive consequences male behavior. The nature also prompts ecological context genetic this social organization. My research attempted address fundamental behavior, ecology evolutionary biology through lens individual oftentimes inhabit disturbed habitats, however detailed space use within fragmented habitats not well characterized. I used fine scale spatial behavioral data order quantify habitat preference S. geoffroyi heterogenous urban-forest landscape central Panama. Using home range- based analyses novel method, passage time analysis, showed that tamarins spend significantly secondary forest are likely forage engage as compared human-modified habitats. examined role aquatic barriers varying age creating population structure . found there was significant differentiation across Chagres River, an older, established riverine barrier smaller, but detectable Panama Canal, recent anthropogenic barrier. Finally, possible benefits parental care using paternity relatedness. group often related they share over multi-year associations. results suggest indirect direct fitness may play maintaining male-male cooperation tamarins.