Sonoran Desert - Ecology

Ecology

The Sonoran Desert includes 60 mammal species, 350 bird species, 20 amphibian species, over 100 reptile species, 30 native fish species, over 1000 native bee species, and more than 2000 native plant species. The Sonoran Desert area southwest of Tucson and near the Mexican border is vital habitat for the only population of Jaguars living within the United States. The Colorado River Delta was once an ecological hotspot within the Sonoran desert, fueled by the flow of fresh water through the Colorado river in this otherwise dry area, but the delta has been greatly reduced in extent due to the damming and use of the river upstream.