1. Department of Botany and Plant Biology, UC Riverside, 900 University Ave., Riverside, CA 92521, USA.
2. WWF Mexico, Av. México 51, Col Hipódromo, Cd. México 06100, Mexico.
3. Scripps Institution of Oceanography, UCSD, 8622 Kennel Way, La Jolla, CA 92037, USA.
4. Andador Alcantarilla 5, Del. Magdalena Contreras, Cd. México 10580, Mexico.
5. CICESE, Departamento de Biología de la Conservación, Carr. Tijuana-Ensenada 3918, Ensenada, B.C. 22800, Mexico.
6. Adjunct Faculty, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA.
7. Bosque de Granados 141, Col. Bosques de las Lomas, Mexico City 11700, Mexico.