Conservation Status

Lepidurus packardi is listed as Endangered by the IUCN. The main reason for decline seems to be the elimination and degradation of its vernal pool habitat due to agricultural and urban development; other reasons include grazing, off-road vehicle

use, and hydrologic modification. On September 19, 1994, the U.S. Fish and Wildlife Service listed L. packardi as endangered because of its limited distribution, the small number of remaining populations, and the amount and nature of threats to this species. The U.S. Federal Government recognized this species as threatened once scientific research demonstrated that the vernal pool tadpole shrimp could go extinct without the protection afforded by the Endangered Species Act.


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