1. Bioagricultural Sciences and Pest Management, C129 Plant Sciences; Colorado State University; Fort Collins Colorado
2. Graduate Degree Program in Ecology; Colorado State University; Fort Collins Colorado
3. Natural Resource Ecology Laboratory; Colorado State University; Fort Collins Colorado
4. Department of Soil and Crop Sciences; Colorado State University; Fort Collins Colorado
5. Department of Evolutionary Biology and Environmental Studies; University of Zurich; Zurich Switzerland
6. Estación Experimental de Zonas Áridas; Consejo Superior de Investigaciones Científicas; Almería Spain
7. URPP Global Change and Biodiversity; University of Zurich; Zurich Switzerland