Evolutionary biologist / Software developer / Outdoor enthusiast
Centre for Ecological and Evolutionary Synthesis
Department of Biosciences
University of Oslo
Diversification / Adaptive radiation / Phylogenomics / Introgression
My research investigates both micro- and macroevolutionary processes that drive species diversification, mostly using the adaptive radiations of Antarctic ice fishes or African cichlid fishes as model systems. To infer time-lines of diversification, I use genomic data sets, and I have developed the CladeAge add-on for the software BEAST2 to estimate divergence dates based on information from the fossil record. Through comparison of the inferred time-lines, present-day species numbers, and geological events, I aim to identify why some groups of animals are extremely species-rich, while others fail to diversify. Part of this work relies on computer simulations to compare observed and expected patterns of species richness, genetic diversity, and morphological variation. In addition, I use genome sequences from different populations of the same species, or from closely related species, to investigate hybridization and its effect on the speciation progress.
University of Basel, Switzerland | 2008-2011
PhD thesis with Prof. Walter Salzburger, Zoological Institute, Department of Environmental Sciences. Title: 'Population genetic and phylogenetic insights into the adaptive radiation of Antarctic notothenioid fishes'.
University of Konstanz, Germany | 2002-2008
Diploma studies of Biological Sciences. Thesis title: 'Adaptive radiation in an extreme environment: Population genetics of Antarctic notothenioids'.