CENTER FOR BIOLOGICAL DIVERSITY
| For immediate release: May 17, 2005
Contact: Noah Greenwald: 503-243-6643 or 503-484-7495 (cell)
CONSERVATION GROUPS FILE LAWSUIT TO COMPEL PROTECTION OF RARE SNAKE
The Center for Biological Diversity filed a lawsuit today against the U.S. Fish and Wildlife Service (FWS) over their failure to list the Mexican garter snake as endangered under the Endangered Species Act (ESA) in response to a December 15, 2003 petition filed by the group. The species is an aquatic garter snake with a range-wide distribution in Arizona, southwest New Mexico, and Mexico. It is one of hundreds of native riparian species that are threatened by the destruction and degradation of rivers and streams in the Southwest.
The Mexican garter snake has been extirpated from most of its U.S. range, including the Colorado, Gila, and much of the Santa Cruz and San Pedro Rivers. The decline of the Mexican garter snake is closely linked to the deteriorating quality of streamside habitats and the disappearance of native frogs and native fishes. “Widespread degradation of southwest rivers and introduction of dozens of exotic species necessitates protection of the Mexican garter snake under the ESA,” states Noah Greenwald, conservation biologist for the Center for Biological Diversity.
Populations of the Mexican garter snake are severely fragmented and isolated due to loss and destruction of suitable habitat, which consists of riparian areas with permanent water, streamside vegetation for cover, and native prey species. Livestock grazing, urbanization, pollution, loss of native prey species, and exotic species have resulted in the loss of greater than 90% of the Southwest’s riparian habitat and the listing of 30 species under the ESA. “Southwest rivers have been under massive assault for over a century,” states Greenwald. “To protect southwest riparian species, livestock must be removed from all southwest rivers and streams on public lands, instream flows must be established, and further introduction of non-native species must be prohibited.”
“Without ESA listing and critical habitat designation, the Mexican garter snake population will continue in its dangerous trajectory of local extirpations and decreased range,” concludes Greenwald. Listing of the Mexican garter snake will facilitate conservation of riparian habitats and species by prohibiting activities that result in destruction of habitat, such as livestock grazing and groundwater pumping, directing federal funding towards removal of non-native species, and encouraging additional research on the status of the species.
Mexican garter snakes reach a maximum length of one meter, range in color from olive to olive-brown to olive-gray, and have three yellow stripes that run the length of the body. They feed primarily on native frogs and fish, but will also occasionally eat lizards and mice. A picture of the garter snake and a map of its range are available on request.