Search publications of the members of the Royal Belgian institute of natural Sciences
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The phylogeny of some african muroids (Rodentia) based upon partial mitochondrial cytochrome b sequences
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The presence of Praomys, Lophuromys, and Deomys species (Muridae, Mammalia) in the forest blocks separated by the Congo River and its tributaries (Kisangani region, Democratic Republic of Congo)
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Tooth Shape Differences Analyzed by Biometric and Morphometric Approaches: A Case Study on Two Morphologically Very Similar Lacustrine Cichlid Species
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Verlies van genetische variatie bij zeldzame en bedreigde inheemse vissoorten: omvang, consequenties en maatregelen
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Widespread geographical distribution of mitochondrial haplotypes in rock-dwelling cichlid fishes from Lake Tanganyika.
- The spectacularly diverse cichlid fish species flocks of the East African Rift Lakes have elicited much debate on the potential evolutionary mechanisms responsible for the origin of these adaptive radiations. An historical perspective on population structure may offer insights into the processes driving population differentiation and possibly speciation. Here, we examine mitochondrial DNA (mtDNA) sequence variation in two endemic species of rock-dwelling cichlids, Simochromis babaulti and S. diagramma, from Lake Tanganyika. Phylogeographic analyses were used to infer what factors might have been important in the genetic structuring of Simochromis populations. Patterns of mtDNA differentiation in Simochromis were compared to those of other rock-dwelling cichlids to distinguish between competing hypotheses concerning the processes underlying their evolution. In striking contrast to previous findings, populations of Simochromis, even those separated by up to 300 km, were found to share mitochondrial DNA haplotypes. There is no correspondence between mtDNA genealogies and the geographical distribution of populations. Only S. babaulti, but not S. diagramma was found to have a significant association between genetic and geographic distance. These phylogeographic patterns suggest that the evolutionary effects of abiotic and biotic factors shaping population genetic structure may differ substantially even among closely related species of rock-dwelling cichlids. Physical events and barriers to gene flow that are believed to have had a major impact on the geographical distribution and intralacustrine speciation of Tropheus do not seem to have equally strongly affected its close relative Simochromis. These findings emphasize that no single mechanism can be responsible for the formation of population structure, speciation, and the adaptive radiation of all cichlid fishes.
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Osteology and relationships of Olorotitan arharensis, a hollow-crested hadrosaurid dinosaur from the latest Cretaceous of Far Eastern Russia
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A gigantic bird from the Upper Cretaceous of Central Asia
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Bernissart Dinosaurs and Early Cretaceous Terrestrial Ecosystems
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Bernissart and the Iguanodons: historical perspective and new investigations
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A new basal ornithomimosaur (Dinosauria: Theropoda) from the Early Cretaceous Yixian Formation, NW China
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Histological assessment of vertebrate remains in the 2003 Bernissart drill
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First Maastrichtian (latest Cretaceous) vertebrate assemblage from Provence (Vitrolles-la-Plaine, southern France)
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Anatomy and relationships of Bolong yixianensis, an Early Cretaceous iguanodontoid dinosaur from western Liaoning, China
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High bat (Chiroptera) diversity in the Early Eocene of India
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A new adappoid primate from the Early Eocene of India
- A new genus and species of primitive adapoid primate, Asiadapis cambayensis, is described based on a dentary from the lower Eocene Cambay Shale exposed in the Vastan lignite mine in Gujarat, western India. Asiadapis is most similar to European cercamoniine notharctids and to Marcgodinotius, another primitive cercamoniine from Vastan mine. Asiadapis and Marcgodinotius may belong to a primitive clade of notharctids that reached India around the beginning of the Eocene.
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An ailuravine rodent from the lower Eocene Cambay Formation at Vastan, western India, and its palaeobiogeographic implications
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A complete skull of Allodaposuchus precedens Nopcsa, 1928 (Eusuchia) and a reassessment of the morphology of the taxon based on the romanian remains
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Early Eocene lagomorph (Mammalia) from Western India and the early diversification of lagomorpha
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Oldest North Amercian primate
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A diverse snake fauna from the early Eocene of Vastan Lignite Mine, Gujarat, India
