Desert Tortoise (Gopherus agassizii)
Turtles Around Las Vegas, Wildlife Around Las Vegas
 

Desert Tortoise
Mojave Max coming out of his muddy burrow (Red Rock Canyon NCA).

General Description: A turtle in the desert with a moderately domed, brownish shell. This is the only "land turtle" in the desert around Las Vegas.

Taxonomy: Tortoise Family (Testudinidae).

Technical Description: A terrestrial "turtle." Carapace moderately domed, brownish; can exceed 14-inches long. Hind legs stumpy, round, and elephant-like. Front legs broadly flattened with leathery skin and large scales. Male with indented plastron; female with flat plastron.

Desert Tortoise (Gopherus agassizii)
Tortoise in Creosote-Bursage Flat habitat.

Diet: Primarily eats annual forbs and grasses that germinate after winter rains. Also eats cactus and other low-growing plants. Drinks standing water when available. When food is unavailable, can stay in underground burrow for more than 6 months.

Habitat: Most common in Mojave Desert Scrub habitat type, especially desert scrub and wash habitats dominated by creosote bush. Found in valleys and on bajadas and hills below 4,500 ft elevation. Less common in the lower-elevation Creosote-Bursage Flat habitat type. An important habitat requirement is the presence of annual wildflowers and native grasses that are eaten during spring.

Desert Tortoise
Wild tortoise (Red Rock Canyon NCA; photo courtesy of Bill Phifer © 2006).

Range: Southeastern California, southern Nevada, and southwestern Utah, southward across western Arizona and into western Mexico.

Breeding: Mate in the spring, lay 1-15 eggs per clutch during spring through mid-summer, hatchlings emerge in the fall shortly before going into hibernation.

Similar Species:  This is the only species of tortoise in Nevada.

Desert Tortoise (Gopherus agassizii) in burrow
Tortoise in burrow; notice the dome-shaped roof and flat floor.

Comments: Tortoises dig dome-shaped burrows, usually in the sides of washes or at the base of shrubs. If you look into burrows to try to find them, expect to also see creatures such as rattlesnakes that use the burrows. Tortoises can live in excess of 50 years.

Special Remarks: Tortoises west and north of the Colorado River are listed and protected as Federally Threatened under the Endangered Species Act; individuals may not be taken from the wild. Pet tortoises can be obtained from the Desert Tortoise Program.

Desert Tortoise (Gopherus agassizii), hindfoot Elephant-like (elephantine) hind foot.
Desert Tortoise (Gopherus agassizii), forefoot Spade-like front foot and leg.
Desert Tortoise (Gopherus agassizii), male concave plastron Concave plastron of a male tortoise. The female plastron is flat.
Desert Tortoise (Gopherus agassizii), yearling Yearling tortoise about 2-inches long (notice its size relative to dry grass stems on the ground).
 
Note: All distances, elevations, and other facts are approximate.
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