1/2/2024 0 Comments Food habits of chimpanzees![]() ![]() American journal of primatology, 69(5), 487–502. Fruit availability, chimpanzee diet, and grouping patterns on Rubondo Island, Tanzania. What does a chimpanzee need? Using natural behaviour to guide the care of captive populations. However, the fiber content of the lowland gorilla diet likely relaxes constraints on foraging party size and facilitates group cohesion relative to chimpanzees.Based on the accounts of researchers working with the Rekambo Community in the Loango National Park on a daily basis. Lowland gorillas rely on many of the same fruit resources as sympatric chimpanzees, and under certain demographic situations gorillas, like sympatric chimpanzees, may adapt their foraging group size to reduce intragroup feeding competition. The study group sometimes split into two distinct foraging subgroups, each led by a silverback, and these subgroups occasionally slept apart (mean = 950 m apart). During 1990-1992, the bimale study group foraged less cohesively and had more flexible grouping patterns than mountain gorillas. The study group ranged far daily (average = 2.3 km/day) and had a large home range (22.9 km2), relative to mountain gorillas, and ranging patterns differed between years. ![]() The ranging and grouping patterns of a gorilla group were studied during 27 months from 1990-1992 at the Bai Hokou study site, Central African Republic. To maximize the potential success of any human–wildlife coexistence strategy (e.g., to reduce primate crop feeding), knowledge of primate behavior, as well as multifaceted social dimensions of interactions, is critical. Crop consumption is an increasing and potentially problematic behavior, which can impact local people’s tolerance toward wildlife. Consumption of fruit and nonfruit crops was regular, but did not increase during periods of wild fruit scarcity. Caiquene-Cadique chimpanzees were confirmed to feed on nine different agricultural crops, which represented 13.6% of all plant species consumed. However, we provide indirect evidence of possible smashing and consumption of giant African snails (Achatina sp.) by chimpanzees at this site. Honey was frequently consumed but no other insects or vertebrates were confirmed to be eaten by this community. Certain wild species were identified as important to this community including oil-palm (Elaeis guineensis) fruit and flower. The chimpanzees experienced marked seasonal varia- tions in the availability of plant foods, but maintained a high proportion of ripe fruit in the diet across months. Using systematically collected data (fecal samples, feeding traces, and direct observations), we examined the diet and feeding strategies of an unhabituated chimpanzee community (Pan troglodytes verus) at Caiquene-Cadique in Guinea-Bissau that inhabit a forest-savanna-mangrove-agricultural mosaic. Despite the conservation importance of understanding the ways in which primates modify their behavior to human pressures, data are lacking, even for well-studied species. With rising conversion of “natural” habitat to other land use such as agriculture, nonhuman primates are increasingly exploiting areas influenced by people and their activities. Thus, innovation was not rare, but emergence of fashion or establishment of traditions seems to occur rarely in chimpanzee society. Although most patterns were repeated later by other individuals, six patterns were never seen performed by another individual, and eight patterns were performed by one or a few individuals but social transmission was unlikely. Innovations included patterns of feeding (n = 8), human-directed behavior (n = 3), hygiene behavior (n = 4), maternal carrying of infants (n = 2), courtship (n = 2), play (n = 6), intimidation displays (n = 3), and quasi-grooming (n = 4). Innovative patterns were operationally defined as new behavioral patterns performed by M group chimpanzees from 1981 onwards. Although field studies of chimpanzees are still too short to answer these questions definitively, it may stimulate further study in various sites to summarize the developments observed over the past 40 years at Mahale, Tanzania. Each local population of chimpanzees shows cultural variation, but little is known about how behavioral variations first emerge, and how often variants spread to other individuals and then become fixed as a local culture in chimpanzee society. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |