ENDANGERED SPECIES ACT PROFILE
PROTECTION STATUS: Not listed
LISTING HISTORY: Listing proposals withdrawn four times since 1993
RANGE: Endemic to the Sonoran Desert in southern California (San Diego, Riverside, and Imperial counties), Arizona (Yuma County), and northwestern Mexico (Sonora and Baja)
THREATS: Urban and agricultural development, off-road vehicle activity, energy development, military activities, introduction of nonnative plants, pesticide use, and habitat degradation due to Border Patrol and illegal drive-through traffic along the United States-Mexico border
POPULATION TREND: The species is considered to be in moderate decline.
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