My main research interest is to understand mechanisms behind variation in species diversity among geographic areas and clades at different spatial and temporal scales. In macroecological research, my main focus is to understand how climate change in Earth’s history has shaped patterns in biodiversity, including global geographic patterns in species richness and variation in species numbers among clades. Arctic and boreal regions stand out in having experienced the largest magnitudes of climate variability. At the ecosystem level, I work mainly with streams and rivers: Most projects focus on different aspects of the restoration ecology of streams and rivers in boreal and subarctic regions: How can riverine ecosystems degraded by human activities be restored or rehabilitated to conserve their species in the face of climate change?
I am course coordinator for the advanced level course “Ecosystem Management”, and examiner for bachelor theses in biology.