We conducted a series of playback experiments with free-ranging putty-nosed monkeys at Gashaka Gumti National Park, Nigeria. In a first experiment, we observed the behavior of the females of a habituated group in response to playbacks of natural call series of their own male. A female could serve as focal subject if she was located at the periphery of the group while the male was at the opposit...

This study aimed to assess socio-demographic determinants of travel motivation and behavior visitors in nature-based destinations Northern Nigeria. Structured questionnaire was administered 575 respondents at Chad Basin National Park; CBNP (69), Gashaka Gumti GGNP (165) Yankari Game Reserve; YGR (341). Data were analyzed descriptively inferentially. Results revealed that majority the males (72....

Army ant predation by chimpanzees has been studied as an intriguing example of tool use and a possible case of cultural variation. However, the importance of army ant prey in chimpanzee diet and feeding ecology is still only poorly understood.We studied the availability and consumption of army ants in a population of the chimpanzee subspecies Pan troglodytes vellerosus in Nigeria. Army ants wer...

Baboons are the most successful and ubiquitous African primates, renowned for their behavioral and reproductive flexibility, which enable them to inhabit a wide variety of habitat types. Owing to a number of long-term field studies, comparative behavioral, developmental, demographic, and life-history data are available from several populations, but study sites show a heavy bias toward South and...