As temperatures exceed 100 degrees Fahrenheit, Airmen

As temperatures exceed 100 degrees Fahrenheit, Airmen from the 60th Civil Engineer Squadron install a California Tiger Salamander barrier fence along Perimeter Road, June 22, 2017 at Travis Air Force Base, Calif. Juvenile CTS, an amphibian species listed as threatened or endangered endemic to California, migrate from drying vernal pools in spring across dangerous roads and runways on Travis in search of burrows dug by other animals where they live as adults. The approximately 1,500 foot temporary fence has buckets installed at ground level along its length to catch salamanders. The fence will stay in place until the vernal pool is completely dry, or until migration ceases between late July and early August. (U.S. Air Force photo by Heide Couch)