AQUATIC AND RIPARIAN HERPETOFAUNA OF LAS CIENEGAS NATIONAL CONSERVATION AREA, EMPIRE-CIENEGA RANCH, PIMA COUNTY, ARIZONA Philip C. Rosen, Assistant Research Scientist School of Natural Resources, University of Arizona Tucson, AZ 85721 520-621-3187 ph 520-670-5001 fax
[email protected] and Dennis J. Caldwell, Caldwell Design 2109 N 2nd Avenue, Tucson, AZ 85705
[email protected] Final Report to: Bureau of Land Management Tucson Office 12661 East Broadway Tucson, AZ 85748 For Cooperative Agreement AAA000011 Task Order No. 6 (BLM, AZ State Office – CESU-FLPMA, University of Arizona) AZ068-1120-BV-SSSS-25-2B 1 September 2004 LAS CIENEGAS AQUATIC AND RIPARIAN HERPETOFAUNA – ROSEN & CALDWELL 2004 2 Aquatic and Riparian Herpetofauna of Las Cienegas National Conservation Area, Empire-Cienega Ranch, Pima County, Arizona 1 September 2004 Philip C. Rosen and Dennis J. Caldwell Executive Summary Las Cienegas National Conservation Area encompasses the Empire and Cienega ranches, including the headwaters and intact cienega-stream of Cienega Creek. This area supports the most intact natural major valley bottom wetland in Arizona, and provides a window to the original environment of other valleys in southeastern Arizona. We intensively inventoried the amphibians and reptiles of the cienega and its riparian environs, and extensively surveyed those in the surrounding xeroriparian and upland environments. These environments, not including species in outlying, rocky environments, support a rich herpetofauna with 38 species verified and an expected