Influences of moonlight, ambient temperature, and food availability on the diurnal and nocturnal activity of owl monkeys (Aotus azarai)


The study of activity rhythms, their potential zeitgebers and masking factors among free-ranging primates has received relatively little attention in the past. Most primates are diurnal, a few of them nocturnal, and even fewer are cathemeral. Owl monkeys (Aotus azarai azarai) regularly show diurnal, as well as nocturnal, activity in the Argentinean and… (More)
DOI: 10.1007/s00265-003-0637-9

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