ArticleBMC evolutionary biology2015
Environmental variation and rivers govern the structure of chimpanzee genetic diversity in a biodiversity hotspot.
Article in BMC evolutionary biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 221 citations in OpenAlex.
- Evidence for multiple past introgressions among chimpanzee subspecies during warming periods.Communications biology · 2026Article
- Plio-Pleistocene Climatic Fluctuations and Divergence With Gene Flow Drive Continent-Wide Diversification in an African Bird.Molecular ecology · 2025Article
- Patterns of Technical Variation in Chimpanzee Termite Fishing Behavior in Mbam and Djerem National Park, Cameroon.American journal of primatology · 2025Article
- Barriers to chimpanzee gene flow at the south-east edge of their distribution.Molecular ecology · 2023Article
- Population dynamics and genetic connectivity in recent chimpanzee history.Cell genomics · 2022Article
- Population Genomics Reveals Incipient Speciation, Introgression, and Adaptation in the African Mona Monkey (Cercopithecus mona).Molecular biology and evolution · 2021Article
- Precipitation and vegetation shape patterns of genomic and craniometric variation in the central African rodentProceedings. Biological sciences · 2020Article
- Habitat differentiation among three Nigeria-Cameroon chimpanzee (Ecology and evolution · 2019Article
- Phylogeny Estimation by Integration over Isolation with Migration Models.Molecular biology and evolution · 2018Article
- Article
- Morphometric and genetic differentiation among populations of flat-headed cusimanse (Ecology and evolution · 2018Article
- Evaluating the role of Pleistocene refugia, rivers and environmental variation in the diversification of central African duikers (genera Cephalophus and Philantomba).BMC evolutionary biology · 2017Article
- Environmental selection is a main driver of divergence in house sparrows (Ecology and evolution · 2016Article
- Why Are Nigeria-Cameroon Chimpanzees (Pan troglodytes ellioti) Free of SIVcpz Infection?PloS one · 2016Article
- High Rate of Simian Immunodeficiency Virus (SIV) Infections in Wild Chimpanzees in Northeastern Gabon.Viruses · 2015Article
- Chimpanzee population structure in Cameroon and Nigeria is associated with habitat variation that may be lost under climate change.BMC evolutionary biology · 2015Article
- The population genetics of wild chimpanzees in Cameroon and Nigeria suggests a positive role for selection in the evolution of chimpanzee subspecies.BMC evolutionary biology · 2015Article
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Authors and funding
5 authors at 4 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe mechanisms that underlie the diversification of tropical animals remain poorly understood, but new approaches that combine geo-spatial modeling with spatially explicit genetic data are providing fresh insights on this topic. Data about the diversification of tropical mammals remain particularly sparse, and vanishingly few opportunities exist to study endangered large mammals that increasingly exist only in isolated pockets. The chimpanzees of Cameroon represent a unique opportunity to examine the mechanisms that promote genetic differentiation in tropical mammals because the region is home to two chimpanzee subspecies: Pan troglodytes ellioti and P. t. trogolodytes. Their ranges converge in central Cameroon, which is a geographically, climatically and environmentally complex region that presents an unparalleled opportunity to examine the roles of rivers and/or environmental variation in influencing the evolution of chimpanzee populations.
resultsWe analyzed microsatellite genotypes and mtDNA HVRI sequencing data from wild chimpanzees sampled at a fine geographic scale across Cameroon and eastern Nigeria using a spatially explicit approach based upon Generalized Dissimilarity Modeling. Both the Sanaga River and environmental variation were found to contribute to driving separation of the subspecies. The importance of environmental variation differed among subspecies. Gene-environment associations were weak in P. t. troglodytes, whereas environmental variation was found to play a much larger role in shaping patterns of genetic differentiation in P. t. ellioti.
conclusionsWe found that both the Sanaga River and environmental variation likely play a role in shaping patterns of chimpanzee genetic diversity. Future studies using single nucleotide polymorphism (SNP) data are necessary to further understand how rivers and environmental variation contribute to shaping patterns of genetic variation in chimpanzees.
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