List of ecoregions in Mexico

The terrestrial ecoregions of Mexico span two biogeographic realms - the Nearctic and Neotropic - which together constitute the entire biogeography of the Americas. Veracruz is the most biodiverse state with 10 ecoregions across 5 biomes and 2 realms. Chiapas comes in a close second with 10 ecoregions across 4 biomes in the same realm. By contrast, Morelos is the least biodiverse state with just 2 ecoregions. ==Freshwater ecoregions==

Baja California Complex • Baja California ===Colorado River Complex=== • Colorado Delta • Sonoran Sinaloan Coastal Complex • Sinaloan Coastal Rio Bravo Complex • Rio Bravo • Pecos • Guzman • Mapimí • Cuatro Ciénegas • Llanos El Salado • Conchos • Lower Rio Bravo • Rio San Juan • Rio Salado Lerma/Santiago Complex • Santiago • Chapala • Lerma • Rio Verde Headwaters • Manantlan/Ameca Rio Panuco Complex • Rio Panuco Balsas Complex • Balsas Pacific Central Complex • Tehuantepec Atlantic Central Complex • Southern Veracruz • Belizean Lowlands • Catemaco • Coatzacoalcos • Grijalva-Usumacinta • Yucatán ==Marine ecoregions==

===Warm Temperate Northeast Pacific=== • Southern California Bight • Cortezian • Magdalena Transition ===Tropical East Pacific=== • Revillagigedos • Mexican Tropical Pacific • Clipperton] (an overseas possession of France, disputed by Mexico) • Chiapas-Nicaragua ===Warm Temperate Northwest Atlantic=== • Northern Gulf of Mexico ===Tropical Northwestern Atlantic=== • Southern Gulf of Mexico • Western Caribbean ==See also==