1. Ecology, Research and Consultancy, Utrecht, Netherlands
2. Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Groningen, Netherlands
3. PWN drinkwaterbedrijf/natuurbeheerder Noord-Holland, Velserbroek, Netherlands
4. Technology Center, University of Amsterdam, Amsterdam, Netherlands
5. Greenstat, Tricht, Netherlands
6. Theoretical and Computational Ecology, IBED, University of Amsterdam, Amsterdam, Netherlands
7. NIOZ Royal Netherlands Institute for Sea Research, Texel, Netherlands