My research has focused on adaptation to environmental stressful conditions in terrestrial invertebrates with especially attention to effects of high and low temperature. I have a strong interest in the relationship between evolutionary adaptation and phenotypic plasticity. Further, I have a keen interest in the relationships (phenotypic and genetic trade-offs) among stress tolerance and life history traits that shape or constrain adaptation. A large part has focused on the evolutionary and ecological role of the stress response and the expression of heat shock proteins for stress resistance and adaptation. My experience covers particularly population biology, evolutionary genetics, molecular biology and eco-physiology with particular emphasis on environmental stress. The work had used a combination of approaches from molecular genetics to evolutionary ecology, and field experiments with laboratory experiments, using a variety of model and non-model organisms, primarily terrestrial invertebrates. I have worked in the Arctic on several occasions including field campaigns funded by EU programme for Arctic research ‘Interact’ (Svalbard, Iceland, Yakutsk/Sibiria, Greenland, and northern Norway).