- Army Moving Mojave's Tortoises From Base -

Fort Irwin - Scientists have begun moving the Mojave S-Desert's flagship species, the desert tortoise, to make room for tank training at the Army's Fort Irwin despite protests by some conservationists.

The controversial project, billed as the largest desert tortoise move in California history, involves transferring 770 endangered reptiles from Army land to a dozen public plots overseen by the U.S. Bureau of Land Management.

Fort Irwin has sought to expand its 643,000- acre training site into tortoise territory for two decades. The Army said it needs an extra 131,000 acres to accommodate faster tanks and longer-range weapons used each month to train some 4,000 troops.

Desert tortoises are the longest living reptiles in the South-west, with a potential life span of 100 years, and can weigh up to 15 pounds. Their population has been threatened in recent years by urbanization, disease and predators including the raven.

Weeks before the relocation, two conservation groups threatened to sue Fort Irwin. The Center for Biological Diversity and Desert Survivors contend that the land set aside for the desert tortoises is too close to an interstate highway and is plagued with off-road vehicles and illegal dumping that would disturb the animals.

The groups served Fort Irwin with a 60-day notice of intent to sue and plan to file the lawsuit after the desert tortoises have been moved.

"There's still a lot of work that needs to be done to make the relocation site more habitable," said Ileene Anderson, a staff biologist with the Center for Biological Diversity.