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/recent 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:
Arktisk-alpin og boreal botanikk, biosystematikk, plantegeografi, bevaringsgenetikk, genomikk, vegetasjonsøkologi, floristikk. Fremmede arter: overvåking av utbredelse, spredningsvei, identifisering av dørstokkarter, og risikovurderinger.