Draft EIS_072312.pdf - Middle Fork American River Project ...

157
Species Name Status Habitat Occurrence Notes
Townsend's big-eared
bat
(Orynorhinus
townsendii)
Western red bat
(Lasiurus blossevillii)
FSS
CSC
FSS
CSC
Found in all but alpine and
subalpine habitat types, ranging
from sea level to 10,800 feet. Most
abundant in mesic habitats.
Habitat associations include:
coniferous forests, mixed mesophytic
forests, deserts, native
prairies, riparian communities,
active agricultural areas, and
coastal habitat types. Requires
caves, mines, tunnels, buildings, or
other man-made structures for
roosting. Extremely sensitive to
disturbance and may abandon a
roost if disturbed.
In California, it occurs from sea
level up through mixed coniferous
forest. Day roosts commonly in
edge habitats adjacent to streams
or open fields, in orchards, and
sometimes in urban areas. May be
an association with intact riparian
habitat (particularly willows,
cottonwoods, and sycamores). In
California, it is known to roost
solitarily in cottonwood and
willow trees.
Suitable habitat is present in the study area.
Townsend’s big-eared bat was detected during the
special-status bat relicensing surveys at French
Meadows dam and outlet works, Ralston afterbay
dam, North Fork Long Canyon diversion dam, French
Meadows powerhouse and penstock and butterfly
valve house, and the upper end of Hell Hole reservoir.
No roost sites were documented.
Suitable habitat is present in the study area.
Western red bat was detected during the special-status
bat relicensing surveys at French Meadows dam and
outlet works, Ralston afterbay dam, Middle Fork
interbay dam, North and South Fork Long Canyon
diversion dams, French Meadows powerhouse and
penstock and butterfly valve house, and the upper end
of Hell Hole reservoir. No roost sites were
documented.