The Global 200 is the list of ecoregions identified by the World Wide Fund for Nature (WWF), the global conservation organization, as priorities for conservation. According to WWF, an ecoregion is defined as a "relatively large unit of land or water containing a characteristic set of natural communities that share a large majority of their species dynamics, and environmental conditions". For example, based on their levels of endemism, Madagascar gets multiple listings, ancient Lake Baikal gets one, and the North American Great Lakes get none.
The Sierra Madre Oriental is a mountain range in northeastern Mexico. The Sierra Madre Oriental is part of the American Cordillera, a chain of mountain ranges (cordillera) that consists of an almost continuous sequence of mountain ranges that form the western "backbone" of North America, Central America, South America, and Antarctica.
The Madrean pine–oak woodlands are subtropical woodlands found in the mountains of Mexico and the southwestern United States. They are a biogeographic region of the tropical and subtropical coniferous forests and temperate broadleaf and mixed forests biomes, located in North America.
The Madrean Sky Islands are enclaves of Madrean pine–oak woodlands, found at higher elevations in a complex of small mountain ranges in southern and southeastern Arizona, southwestern New Mexico, and northwestern Mexico. The sky islands are surrounded at lower elevations by the Sonoran and Chihuahuan deserts. The northern west–east perimeter of the sky island region merges into the higher elevation eastern Mogollon Rim and the White Mountains of eastern Arizona.
Mabee's salamander is a species of mole salamander found in tupelo and cypress bottoms in pinewoods, open fields, and lowland deciduous forests, pine savannahs, low wet woods, and swamps. It usually burrows near breeding ponds. Eggs are attached to submerged plant material or bottom debris of acidic, fishless ponds in or near pine stands. In Virginia, it breeds in fish-free vernal pond in a large clear-cut area and in ephemeral sinkhole ponds up to 1.5 m deep, within bottomland hardwood forest mixed with pine. Larvae develop in the ponds. Distances moved into terrestrial habitat are unknown, but probably are greater than 150 metres (490 ft).
The Sierra Madre Occidental pine–oak forests are a Temperate broadleaf and mixed forests ecoregion of the Sierra Madre Occidental range from the southwest USA region to the western part of Mexico. They are home to a large number of endemic plants and important habitat for wildlife.
The granular salamander or ajolote is a species of mole salamander in the family Ambystomatidae. It is found only in Mexico. Its natural habitats are subtropical or tropical high-altitude grassland, freshwater marshes, intermittent freshwater marshes, and ponds. It is threatened by habitat loss and overcropping along with the scaling of their skins.
Ambystoma rivulare is a species of mole salamander in the family Ambystomatidae. Typically gains a lot of population distribution in the Trans-Mexican Volcanic Belt around central Mexico City. Found in various small or medium-sized ponds and lakes that have large and wide range of food options, all within a distance of at least 2 km. It is endemic to Mexico. Its natural habitats are subtropical or tropical moist montane forests and rivers. It is threatened by habitat loss. The larvae, who continue to prey on the same organisms as they grow, prey mainly on ostracods as well as some gastropods and assorted other prey with limited diversity. Ambystoma rivulare continue to live in the river they hatch in post-metamorphosis.
The ridged tree frog is a species of frog in the family Hylidae endemic to Mexico. Its natural habitats include mountainous pine-fir forests in high elevations. In lower elevations it is known to inhabit moderate and low-lying streams and ponds where it is believed to breed.
Walker's tree frog is a species of frog in the family Hylidae found in Guatemala and Mexico. Its natural habitats are highlands of pine-oak forests and pine-fir forests. It is known to occur in Chiapas Mexico and in parts of Guatemala including the Sierra de los Cuchumatanes mountain range in the west, the plateaus of central Guatemala, and in southeastern Guatemala. However, it is believed that its range is greater than what is currently known. It breeds in temporary ponds, and is threatened by habitat loss.
Craugastor tarahumaraensis is a species of frog in the family Craugastoridae. It is endemic to Mexico and known from the Sierra Madre Occidental between the eastern Sonora and western Chihuahua in the north and Jalisco in the south. Its common name is Tarahumara barking frog. The type locality is Mojárachic, in the Tarahumara Mountains, Chihuahua.
The Sacramento Mountain salamander is a species of salamander in the family Plethodontidae. It is endemic to mountainous regions of New Mexico in the United States. Its natural habitat is temperate forests where it is threatened by habitat loss.
The Guerreran climbing salamander is a species of salamander in the family Plethodontidae. It is endemic to Mexico. It is found on the Pacific slope of the Sierra Madre del Sur in the basins of the Atoyac and Tecpan rivers, between 765 and 2,800 meters elevation. Its extent of occurrence (EOO) is 1,122 km2.
The Oaxacan climbing salamander is a species of salamander in the family Plethodontidae. It is endemic to Mexico. Its natural habitats are subtropical or tropical moist montane forests and plantations . It is threatened by habitat loss.
The gristle-headed splayfoot salamander is a species of salamander in the family Plethodontidae. It is endemic to the Sierra Madre Oriental of east-central Mexico.
Pseudoeurycea conanti is a species of salamander in the family Plethodontidae. It is endemic to Oaxaca, Mexico.
The Trans-Mexican Volcanic Belt pine–oak forests is a subtropical coniferous forest ecoregion of the Trans-Mexican Volcanic Belt of central Mexico.
The Durango salamander, or pine wood salamander, is a mole salamander. It is endemic to Mexico, where it is found in Durango and Chihuahua states. Its habitats include ponds, shallow lakes, and pine-oak forests.
Magnolia tarahumara is a species of flowering plant in the family Magnoliaceae. It is endemic to Mexico, where it occurs in scattered locations in the Sierra Madre Occidental of southeastern Sonora, southwestern Chihuahua, Sinaloa, and northwestern Durango.
Campo Verde Flora and Fauna Protection Area is a protected area in northern Mexico. It covers an area of 1080.67 km2 in northwestern Chihuahua, on the border with Sinaloa. It is at the eastern edge of the Sierra Madre Occidental, where it meets the Chihuahuan Desert.
