Local Species
Selected species include the almost certainly extinct
imperial woodpecker (
Campephilus imperialis),
dwarf jay (
Cyanocorax nana), cycad (
Dioon tomasellii),
volcano rabbit (
Romerolagus diazi), and 2 species of wild maize (
Zea perennisand and
Z. diploperennis).
The temperate forests of the
Sierra Madre del Sur are an unparalleled centre of endemism and biodiversity in Mexico. Many of the 350 species of orchids in this region can be found nowhere else in the world. This is one of the richest areas in butterfly species in the Mexican Pacific, with more than 160 species including the Pacific dotted-blue and Pacific orange tip butterflies.
Trans-Mexican Volcanic Belt pine-oak forests represent a centre of diversity for at least 370 endemic plant and animal species. The highest diversity of reptiles and amphibians in the country is found here, and the intermontane lakes provide habitat to many endemic frogs and axolotls (primitive salamanders with gills). Monarch butterflies, which undertake the largest migratory route of all insects (4,000 km or 2,500 miles), spend winters hibernating in these cool and moist volcanic forests.
The
Oaxaca pine-oak forests house the highest diversity of amphibians and reptiles in Mexico and support several birds endemic to the region, such as the
grey-barred wren, the bearded wood-partridge, and the
dwarf jay. At least 45 oak (
Quercus) species grow here, as well as 2 highly endangered tree species, a firand and a cypress.