The Evergreen Crowberry (Empetrum Nigrum) (IMAGE) University of Helsinki Caption The impact of dwarf shrubs on soil microclimate and carbon stocks is a timely question, as the dominance of dwarf shrubs has increased in the Fennoscandian tundra due to climate change, especially the evergreen crowberry (Empetrum nigrum). Credit Julia Kemppinen Usage Restrictions Photo: Julia Kemppinen License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.