1984/02/14 by John G. Robinson · 2 citations
Psychology · Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · #Primate Behavior and Ecology #Animal Behavior and Reproduction #Animal Vocal Communication and Behavior #Foraging #Morning #Biology #Forage #Cebidae #Ecology #Diurnal temperature variation #Feeding behavior #Zoology #Dry season #Animal science #Geography #Botany
paper · doi:10.1159/000156183
openalex publication_date 1984/02/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/05/21
Cebus olivaceus monkeys exhibit pronounced diurnal variation in when they forage and what they eat when they are foraging. During the dry season, while foraging bouts occurred throughout the day, the group reliably foraged in the early morning and late afternoon. During the wet season there was no overall pattern to foraging through the day. At all times of the year, animals usually fed on ripe fruit in the early morning, but only certain fruits were taken more frequently at this time. Thereafter they fed on both fruits and invertebrates. I examined whether these diurnal patterns reflects environmental conditions, such as ambient temperature or resource availability, or internal constraints, such as preference for or selection of specific food items.