1. Department of Ecology and Conservation Biology Texas A&M University College Station Texas USA
2. School of Aquatic and Fishery Sciences University of Washington Seattle Washington USA
3. Cary Institute of Ecosystem Studies Millbrook New York USA
4. HelmWest Laboratory Missoula Montana USA
5. Soltis Center for Research and Education in Costa Rica Texas A&M University San Isidro de Peñas Blancas Costa Rica
6. Facultad de Zootecnia y Ecología Universidad Autónoma de Chihuahua Chihuahua Mexico