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Generation times in wild chimpanzees and gorillas suggest earlier divergence times in great ape and human evolution
TLDR
The human–chimpanzee split is dated to at least 7–8 million years and the population split between Neanderthals and modern humans to 400,000–800,000 y ago, which suggests that molecular divergence dates may not be in conflict with the attribution of 6- to 7-million-y-old fossils to the human lineage and 400,,000-Y-old bones to the Neanderthal lineage.
Assessing chimpanzee personality and subjective well‐being in Japan
TLDR
Comparing personality and subjective well‐being ratings of 146 chimpanzees in Japan that were housed in zoos, research institutes, and a retirement sanctuary to ratings of chimpanzees in US and Australian zoos suggests that chimpanzee personality ratings are not affected by the culture of the raters.
Descriptive epidemiology of fatal respiratory outbreaks and detection of a human‐related metapneumovirus in wild chimpanzees (Pan troglodytes) at Mahale Mountains National Park, Western Tanzania
TLDR
Preliminary evidence is provided that the causative agent associated with these illnesses is viral and contagious, possibly of human origin; and that, possibly more than one agent may be circulating in the population.
Mitochondrial Genome Sequences Effectively Reveal the Phylogeny of Hylobates Gibbons
TLDR
Using mtDNA genome sequences to reconstruct gibbon phylogenetic relationships and reveal the pattern and timing of divergence events in gibbon evolutionary history suggests a much more rapid speciation process in Hylobates than in Nomascus.
Genetic and ‘cultural’ similarity in wild chimpanzees
TLDR
It is found that genetic dissimilarity cannot be eliminated as playing a major role in generating group differences in chimpanzee behaviour, and the overall levels of genetic and behavioural Dissimilarity between groups are highly and statistically significantly correlated.
Evaluation of genetic diversity and conservation priorities for Egyptian chickens
TLDR
Dandarawy ranked firstly and contributed the most to aggregate genetic diversity based on two prioritization methods and may be used as an initial guide to design further investigations for development of sustainable genetic improvement and conservation programs for the Egyptian chicken genetic resources.
Relatedness in wild chimpanzees: influence of paternity, male philopatry, and demographic factors.
TLDR
The paternity of 11 offspring and the relatedness of 50 individuals in the M group of chimpanzees at Mahale Mountains National Park, Tanzania, were investigated using DNA analyses and it is suggested that although the average relatedness among adult males does not reach the level of half-siblings, under some circumstances it can exceed therelatedness of females.
Assessment of landscape‐scale distribution of sympatric great apes in African rainforests: Concurrent use of nest and camera‐trap surveys
TLDR
The authors' analyses showed that both methods provided roughly consistent results for the distribution patterns of the species; chimpanzee groups (parties) were more abundant in the montane forest, and gorilla groups were relatively homogeneously distributed across vegetation types.
Inferring the evolutionary histories of divergences in Hylobates and Nomascus gibbons through multilocus sequence data
TLDR
It is found that on average gibbon genera have a high average sequence diversity but a lower degree of genetic differentiation as compared to great ape genera, and that the divergence processes of gibbons may be accompanied by gene flow.
Ranging behavior of Mahale chimpanzees: a 16 year study
TLDR
Over the 16 years of the study, the Mimikire group of chimpanzees in the Mahale Mountains National Park, Tanzania found that the M group reduced their use of the northern part of their range and increased their frequency of visits to the eastern mountainous side of their home range.
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