Olneya tesota is an indicator species of the Sonoran Desert region.
The Sonoran Desert has one other species with the identical north-south, and east-west range.
The seasonally migrating lesser long-nosed bat follows the bloom season of various species from south to north and extends into the same regions of the Sonoran Desert as Olneya.
The bat ranges from southern Baja California del Sur and north into the southwestern United States.

In the north, both species define the Colorado Desert subregion of the Sonoran Desert surrounding the northern end of the Gulf of California; further south in the Baja Peninsula the sub-division is defined as the Vizcaino Desert.

The winter and permanent range of the bat extend into the northern countries of Central America.
Olneya tesota is an indicator species of the Sonoran Desert region. The Sonoran Desert has one other species with the identical north-south, and east-west range. The seasonally migrating lesser long-nosed bat follows the bloom season of various species from south to north and extends into the same regions of the Sonoran Desert as Olneya. The bat ranges from southern Baja California del Sur and north into the southwestern United States.
In the north, both species define the Colorado Desert subregion of the Sonoran Desert surrounding the northern end of the Gulf of California; further south in the Baja Peninsula the sub-division is defined as the Vizcaino Desert.
The winter and permanent range of the bat extend into the northern countries of Central America.
Olneya