I study resource limitation, population dynamics, and community composition of breeding waterfowl on nemoral and boreal lakes. This involves experimental as well as descriptive work with colleagues Gunnar Gunnarsson, Lisa Dessborn, and Pär Söderquist (Kristianstad university), and in collaboration with Kjell Sjöberg (Sweden), Hannu Pöysä (Joensuu, Finland), and Petri Nummi and Sari Holopainen (Helsinki, Finland).

I also study how processes on breeding grounds are related to those on staging and wintering areas farther south in Europe. The aim is to gain an around-the-year understanding of individual behaviour in relation to population- and community-level processes. This work is done in collaboration with Celine Arzel (Turku, Finland), and Matthieu Guillemain and Jocelyn Champagnon (ONCFS and Tour du Valat, Arles, France).

Other projects address the effects of avian influenza (AIV) on wild ducks. This work is done with Gunnar Gunnarsson in collaboration with Jonas Waldenström, Daniel Bengtsson and colleagues at Linneaus University (Sweden).