Tiina Salo, University of Helsinki, Helsinki, Finland, Casey L Yanos, Groningen Institute for Evolutionary Life-Sciences, Groningen, Netherlands, Martine E Maan, Groningen Institute for Evolutionary Life-Sciences, Groeningen, Netherlands, Maïté P Jacquot, Åbo Akademi University, Turku, Finland, Andrea De Cervo, Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden, Johan Eklöf, Stockholm University, Department of Ecology, Environment and Plant Sciences, Stockholm, Sweden and Britas Klemens Eriksson, Groningen Institute for Evolutionary Life- Sciences, University of Groningen, Groningen, AG, the Netherlands, Groningen, Netherlands