Tehuacán Valley matorral
The Tehuacán Valley matorral ecoregion occupies the Tehuacán Valley and Cuicatlán Valley, covering parts of the states of Puebla and Oaxaca. The valleys lie in the rain shadow of the surrounding mountain ranges, and are drier than the surrounding ecoregions.
The Tehuacán Valley matorral is bounded by the Trans-Mexican Volcanic Belt pine-oak forests to the northwest, north, and northeast, the Sierra Madre de Oaxaca pine-oak forests to the east, and by the Balsas dry forests to the southeast, south, and southwest.
The Tehuacán Valley matorral is a center of plant diversity, with over 2700 species, of which approximately 30% are endemic. It is a center of diversity for species of Agave, Hechtia, Salvia, and cactus.
The ecoregion has a number of distinct plant communities.
The ecoregion is notable for its diversity of birds and bats. Of the 90 species of birds present, 10 are endemic, including the Ocellated Thrasher (Toxostoma ocellatum), and Bridled Sparrow (Aimorphilla mystacalis). 34 species of bats inhabit the ecoregion, of which 18 are endangered, vulnerable, or rare.
- Velazquez, Mariano (comp.) (1973) "Matorral" A New Pronouncing Dictionary of the Spanish and English Languages (rev. ed.) Prentice-Hall, Englewood Cliffs, New Jersey, p. 431
- Valiente-Banuet, Alfonso, Noe Flores-Hernandez, Miguel Verdu, Patricia Davila. "The chaparral vegetation in Mexico under nonmediterranean climate: the convergence and Madrean-Tethyan hypotheses reconsidered". American Journal of Botany, 1998 85: 1398-1408. 
- "Tehuacán Valley matorral". Terrestrial Ecoregions. World Wildlife Fund.
- World Wildlife Fund (2001). "Tehuacán Valley matorral". WildWorld Ecoregion Profile. National Geographic Society. Archived from the original on 2010-03-08.
- Tehuacán-Cuicatlán Biosphere Reserve (ParksWatch) [PDF]
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