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The chromosomal radiosensitivity of lymphocytes from the chimpanzee (Pan troglodytes) Instituut voor Tropische Geneeskunde
Chemical immobilization of chimpanzees (Pan troglodytes) using a combination of detomidine and ketamine Universiteit Gent
Nocturnal activity in wild chimpanzees (Pan troglodytes): evidence for flexible sleeping patterns and insights into human evolution Koninklijke Maatschappij voor Dierkunde van Antwerpen
Objectives – We investigated occurrences and patterns of terrestrial nocturnal activity in wild chimpanzees (Pan troglodytes) and modelled the influence of various ecological predictors on nocturnal activity.
Methods – Data were extracted from terrestrial camera-trap footage and ecological surveys from 22 chimpanzee study sites participating in the Pan African Programme: The Cultured Chimpanzee. We described videos demonstrating nocturnal ...
Methods – Data were extracted from terrestrial camera-trap footage and ecological surveys from 22 chimpanzee study sites participating in the Pan African Programme: The Cultured Chimpanzee. We described videos demonstrating nocturnal ...
Reproductive parameters of female Pan paniscus and P-troglodytes: Quality versus quantity Koninklijke Maatschappij voor Dierkunde van Antwerpen
We investigated intra- and interspecific differences in life history and reproductive parameters in bonobos ( Pan paniscus) and chimpanzees ( Pan troglodytes). We compare the parameters of wild and captive females in order to shed light on the influence of habitat or specific differences or both on reproduction. We present new and additional information on reproductive parameters from captive bonobos and chimpanzees. Captive chimpanzees birth ...
The Pan social brain: An evolutionary history of neurochemical receptor genes and their potential impact on sociocognitive differences Koninklijke Maatschappij voor Dierkunde van Antwerpen Universiteit Antwerpen
Humans have unique cognitive capacities that, compared with apes, are not only simply expressed as a higher level of general intelligence, but also as a quantitative difference in sociocognitive skills. Humans’ closest living relatives, bonobos (Pan paniscus), and chimpanzees (Pan troglodytes), show key between-species differences in social cognition despite their close phylogenetic relatedness, with bonobos arguably showing greater similarities ...
Lethal aggression in Pan is better explained by adaptive strategies than human impacts Koninklijke Maatschappij voor Dierkunde van Antwerpen
Observations of chimpanzees (Pan troglodytes) and bonobos (Pan paniscus) provide valuable comparative data for understanding the significance of conspecific killing. Two kinds of hypothesis have been proposed. Lethal violence is sometimes concluded to be the result of adaptive strategies, such that killers ultimately gain fitness benefits by increasing their access to resources such as food or mates(1-5). Alternatively, it could be a ...
Aging and sex affect soluble alpha klotho levels in bonobos and chimpanzees Koninklijke Maatschappij voor Dierkunde van Antwerpen Universiteit Antwerpen
Background: Throughout life, physiological homeostasis is challenged and the capacity to cope with such challenges declines with increasing age. In many species, sex differences exist in life expectancy. Sex-specific differences have been related to extrinsic factors like mate competition and/or intrinsic proximate mechanisms such as hormonal changes. In humans, an intrinsic factor related to aging is soluble alpha klotho (alpha-Kl). Both sexes ...
Physical, behavioral, and hormonal changes in the resumption of sexual receptivity during postpartum infertility in female bonobos at Wamba Koninklijke Maatschappij voor Dierkunde van Antwerpen
The operational sex ratio (OSR) is used as a predictor for the intensity of mating competition. While many factors affect the OSR, there tends to be a high male bias in primate species with long interbirth intervals and non-seasonal breeding, such as hominid apes. However, the OSR of bonobos (Pan paniscus) is lower than that of chimpanzees (Pan troglodytes), which is thought to reduce competitive and aggressive male behaviors. The low OSR of ...
High chimpanzee and gorilla densities in a non-protected area on the northern periphery of the Dja Faunal Reserve, Cameroon Koninklijke Maatschappij voor Dierkunde van Antwerpen
Information on the densities of threatened species in non-protected areas is crucial for assessing the degree of isolation of adjacent protected areas and consequently their potential for preserving species from extinction. Relatively few studies, however, provide such information. We present the results of a survey of the densities of two great ape species, the gorilla Gorilla gorilla gorilla and chimpanzee Pan troglodytes troglodytes, in a ...