With the onset of spring we have entered into the active periods of many animals within the California deserts and central valley. The spring is usually the best time of year to conduct surveys for sensitive wildlife and plant species and ECORP is gearing up for another busy field season. As we enter this field season ECORP would like to notify you that we have added some exciting permits to our already extensive list of wildlife survey capabilities. ECORP now holds a U.S. Fish and Wildlife 10 (a)(1)(A) Recovery Permit and a Memorandum of Understanding (MOU) with the California Department of Fish and Wildlife to conduct presence/absence trapping for the Federally and State-listed Endangered giant kangaroo rat (Dipodomys ingens). In addition to giant kangaroo rat, ECORP has also received permits to conduct trapping for salt-marsh harvest mouse (Reithrodontomys raviventris), Nelson’s (San Joaquin) antelope squirrel (Ammospermophilus nelsoni), Tehachapi pocket mouse (Perognathus alticolus inexpectatus), and short-nosed kangaroo rat (Dipodomys nitratoides brevinasus).
Now is the time to assess your project for giant kangaroo rats if construction is scheduled this fall-winter. Giant kangaroo rats are active all year long, but optimum activity periods occur from April 1 to October 31. In order to avoid project delays and additional costs it is recommended that presence/absence trapping be completed within this activity period because trapping outside of this time periods will require additional trapping efforts (increases in the number of traps needed and the length of the survey period).
Giant kangaroo rats are the largest of the kangaroo rat family and primarily occur in dry sandy grasslands of the Central valley of California. There current range includes the Ciervo-Panoche Region in western Fresno and eastern San Benito Counties; Kettleman Hills in southwestern Kings County; San Juan Creek Valley in eastern San Luis Obispo County; the Lokern area, Elk Hills, Buena Vista and McKittrick Valleys, Taft, and Maricopa in western Kern County; the Carrizo Plain in eastern San Luis Obispo County; and the Cuyama Valley along the eastern Santa Barbara-San Luis Obispo County line. Please contact Phillip Wasz at (714)-648-0630 or email him at firstname.lastname@example.org with any questions you may have about project requirements for these species.