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Studies the effects of social environment on food-associated calling of cotton-top tamarins, Saguinus oedipus. Comparison of the food-associated calling behavior within natal environment and after removal from family groups; Role of social status in the use of food-associated calls.

Investigates the ontogeny of the production and usage of food-associated calls in captive cotton-top tamarins. Use of chirps in food contexts; Correlation of calling rate in food context with food preference ranking of tested foods; Feeding behavior of juveniles and subadults; Search for evidence of vocal development; Food preference determination; Vocalization analysis; Stimulus presentation.