Laserfiche WebLink
28 <br /> <br />MAMMALS <br />Special-status Bats <br />Bats (Order - Chiroptera) are the only mammals capable of “true” flight. They are nocturnal <br />feeders and locate their prey, which consists of small to medium sized insects by echolocation. <br />Bats consume vast amounts of insects making them very effective pest control agents. They may <br />eat as much as their weight in insects per day. Maternity roosts comprised of only females, may <br />be found in buildings or mine shafts with temperatures up to 40 degrees Celsius and a high <br />percentage of humidity to ensure rapid growth in the young. Female bats give birth to only one <br />or two young annually and roost in small or large numbers. Males may live singly or in small <br />groups, but scientists are still unsure of the whereabouts of most males in summer. <br />Special-status bats with the potential to occur on the Property are listed below: <br />• Pallid bat (Antrozous pallidus) <br />There are three CNDDB occurrences of pallid bat within five miles of the Property. The nearest <br />occurrence (#331) is located approximately one mile north of the Property within Niles Canyon. <br />In 2003, seven adult males were observed exiting from a bridge roost. This occurrence is <br />presumed extant. The annual grassland habitat located throughout the Property provides potential <br />foraging habitat for this bat species. In addition, the bats may roost within the old orchard trees, <br />or oak woodland habitat that occurs on the Property. Given the information above, it was <br />determined that pallid bat may occur on the Property. <br />Additionally, other non-special status bat species such as the Yuma myotis could also utilize the <br />above habitats in a roosting and foraging capacity. Given the above information, multiple species <br />of bats may occur on the Property in a roosting and foraging capacity. <br />7.0 CONCLUSIONS <br />7.1 Wetlands <br />Results of the verified jurisdictional delineation conducted by Olberding Environmental show <br />that the Property contains Corps and State jurisdictional “other water” features consisting of <br />ephemeral and intermittent drainages. The final verified delineation includes 0.03 ac (255 lnft) of <br />Section 404 Jurisdictional intermittent drainage, less than 0.01 ac (60 lnft) of Section 404 <br />Jurisdictional ephemeral drainage, and a total of 0.16 ac (2,013 lnft) of ephemeral drainage that <br />falls under State jurisdiction.