1. Instituto de Ciencias Marinas y Pesquerías, Universidad Veracruzana, Hidalgo 617, Colonia Río Jamapa, Boca del Río, Veracruz 94290, Mexico.
2. Department of Botany and Plant Sciences, University of California, Riverside, 900 University Avenue, Riverside, CA 92521, USA.
3. Department of Biological Science, California State University, Fullerton, Fullerton, CA 92834–6850, USA.
4. Avian Research Associates, 830 Orange Avenue, Suite K, Coronado, CA 92118, USA.