... the University of Hamburg

• Department of Biology, Biocenter Grindel and Zoological Museum, Zoological Institute
• Department of Biology, Institute of Wood Sciences, Institute for World Forestry

... the University of Cottbus

• Faculty of Environmental Sciences and Process Engineering, Chair of Environmental Economics

... the University of Greifswald

• Institute for Geography and Geology, Sustainability Science and Applied Science

... the University of Kassel

• Department of Organic Plant Production and Agroecosystems Research in the Tropics and Subtropics
• Department of Animal Husbandry in the Tropics and Subtropics

... the University of Marburg

• Faculty of Biology, Department of Animal Ecology

... the University of Goettingen

• Department of Agricultural Economics and Rural Development