IUCN threat status:

Endangered (EN)


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Range Description

This species is endemic to California in the United States. The historical range encompassed the San Joaquin Valley and adjacent foothills of southern California, from Stanislaus County to extreme northern Santa Barbara and Ventura counties, at elevations below 800 m (2,600 feet) (Jennings 1995, USFWS 1998). The currently known occupied range includes scattered parcels of undeveloped land on the floor of the San Joaquin Valley and in the foothills of the Coast Range (see USFWS 1998 for further details). In the northern part of the San Joaquin Valley, Blunt-nosed Leopard Lizards have been found in the Firebaugh and Madera Essential Habitat Areas (Williams 1990). Other northern locations include the Ciervo, Tumey, and Panoche Hills, Anticline Ridge, Pleasant Valley, and the Lone Tree, Sandy Mush Road, Whitesbridge, Horse Pasture, and Kettleman Hills Essential Habitat Areas. In the southern San Joaquin Valley, known extant populations exists in the following locations: Pixley National Wildlife Refuge, Liberty Farm, Allensworth, Kern National Wildlife Refuge, Antelope Plain, Buttonwillow, Elk Hills, and Tupman Essential Habitat Areas; on the Carrizo and Elkhorn Plains; north of Bakersfield around Poso Creek; in western Kern County in the area around the towns of Maricopa, McKittrick, and Taft; at the Kern Front oil field; at the base of the Tehachapi Mountains on Tejon Ranch; and just west of the California Aqueduct on the Tejon and San Emizdio Ranches (USFWS 1998). The species is presumed to be extant in the upper Cuyama Valley (USFWS 1998). The distribution approaches that of Gambelia wislizenii in the Cuyama Valley drainage, where wislizenii occurs above 1,100 m and sila occurs below 790 m (see McGuire 1996).


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© International Union for Conservation of Nature and Natural Resources

Source: IUCN

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