|Digital-Desert : Mojave Desert||
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Overview of the Mojave
The desert tortoise
is a widespread desert
of the southwestern United States. Since its
federal listing as a threatened species in large parts of its range, it has become a primary consideration in almost
every activity that occurs in the Mojave Desert. Population
declines are due primarily to disease, collection,
predation, and loss of
as a result of urbanization.
Other contributing factors include the spread of
species and human activities such as off-road driving,
military maneuvers, and livestock grazing. These activities not only crush the tortoises and their eggs, they
that provide food, water, shade, and shelter. Urbanization causes habitat
a serious problem as each tortoise may require access to up to 3.9 km 2 of habitat. Some desert tortoises also suffer
from an upper respiratory disease, and ravens prey on hatchlings. Raven populations have increased in the Mojave as
people have brought new food sources, such as landfills and garbage dumps, to the desert.
Desert TortoiseThe desert tortoise occurs today in the Mojave and Sonoran deserts of southwest Utah, southern Nevada, southeastern California, and western Arizona. ...