My main research interests are historical and contemporary species dispersal and plant conservation. My work spans the fields of biosystematics, plant geography, conservation genetics and genomics, landscape genetics, vegetation ecology, and floristics.
I focus on alien species and their dispersal to and establishment in Norway and in the Arctic. I also focus on arctic-alpine and boreal plants, especially the rare, disjunctly distributed and/or threatened species.
A selection of current projects I lead or am involved in:
Since 2002, I've been responsible for planning logistics, safety and carrying out botanical field expeditions in Arctic and northern regions:
Arctic-alpine and boreal botany, biosystematics, plant geography, conservation genetics and genomics, vegetation ecology, floristics.