^"Central American Atlantic moist forests". World Wildlife Fund. Retrieved 2013-08-19.
^"Central American montane forests". World Wildlife Fund. Retrieved 2013-08-19.
^"Chiapas montane forests". World Wildlife Fund. Retrieved 2013-08-19.
^"Petén-Veracruz moist forests". World Wildlife Fund. Retrieved 2013-08-19.
^"Sierra Madre de Chiapas moist forest". World Wildlife Fund. Retrieved 2013-08-19.
^"Yucatán moist forests". World Wildlife Fund. Retrieved 2013-08-19.
^"Central American dry forests". World Wildlife Fund. Retrieved 2013-08-19.
^"Chiapas Depression dry forests". World Wildlife Fund. Retrieved 2013-08-19.
^"Central American pine-oak forests". World Wildlife Fund. Retrieved 2013-08-19.
^"Motagua Valley thornscrub". World Wildlife Fund. Retrieved 2013-08-19.
^"Belizean Coast mangroves". World Wildlife Fund. Retrieved 2013-08-19.
^"Northern Honduras mangroves". World Wildlife Fund. Retrieved 2013-08-19.
^"Northern Dry Pacific Coast mangroves". World Wildlife Fund. Retrieved 2013-08-24.
^"Grijalva - Usumacinta". Freshwater Ecoregions of the World. Archived from the original on 2013-08-19. Retrieved 2013-08-19.
^"Quintana Roo - Motagua". Freshwater Ecoregions of the World. Archived from the original on 2012-06-02. Retrieved 2013-08-19.
^"Chiapas - Fonseca". Freshwater Ecoregions of the World. Archived from the original on 2012-06-02. Retrieved 2013-08-19.
^"Upper Usumacinta". Freshwater Ecoregions of the World. Archived from the original on 2017-01-16. Retrieved 2013-08-19.
^ ab"Marine Ecoregions (Spalding 2007). [Map by] GEOMAR, University of Seville, Department of Human Geography". Marine ecoregions. marineplan.es. Archived from the original on 2017-02-12. Retrieved 2013-09-26.
^"Mesoamerican Reef". World Wildlife Fund. Retrieved 2013-08-19.