2018-08-30_PERMIT FILE - C1982057 ‎(3)‎

• Permit No: C1982057
• IBM Index Class Name: Permit File
• Doc Date: 8/30/2018
• Section_Exhibit Name: TAB 11 WILDLIFE
• Media Type: D
• Archive: No

• lease (Figure 11-6). They were trapped at all sites except in the sagebrush type and
accounted for 76 percent of the total animals captured. Deer mice were the only animals
captured at the forb site and in the six additional traps set nearby. They also comprised
the majority of captures in the mixed brush and rock outcrop sites.
The least chipmunk was captured in all habitat types except the forb community. They
comprised 16 percent of the total captures and were most common in the aspen habitat. The
long-tailed vole was captured only in the sagebrush habitat while the southern red -backed
vole was recorded in both the aspen and mixed brush communities.
Other small mammal species or their sign have been observed on the Seneca 11-W study area.
Numerous Richardson's ground squirrels (Spermophilus richardsonii) were recorded near the
mouth of Hubberson Gulch. This was a breeding population as young -of -the -year were
observed near the entrance to an underground burrow. Bushy -tailed woodrat (Neotoma
cinerea) sign was seen in rock outcrops (sandstone bluffs) within the study area. A
female western jumping mouse (Zapus princeps) was caught by hand near the forb vegetation
reference site which is depicted on Exhibit 10-1 within the vegetation report. Burrows of
the northern pocket gopher (Thomomys talpoides) were observed in areas of deep soils
within drainages in the area and aspen communities. Also, golden -mantled ground squirrels
(Spermophilus lateralis) were observed throughout rocky and bushy areas of Hubberson Gulch
and other parts of the study area.
The aspen site revealed the greatest small mammal diversity of the five sites selected for
Mammals. Frequent observations of
sampling (Figure 11-6). Three species were captured in this habitat in
contrast to
three
all of the habitats found within the
habitats which yielded only two species and the forb site which produced
only one species.
species was
The rock outcrop site had the highest population (54 percent of total captures)
of
small
with Gambel
mammals. However, all but one of the captures on that site were of
deer mice.
The
sagebrush site had the lowest number of captures (8 percent of total
captures),
while
mixed brush and forb types had equal captures (11 percent of total for
each). The
aspen
•
habitat accounted for 16 percent of total captures.
Other small mammal species or their sign have been observed on the Seneca 11-W study area.
Numerous Richardson's ground squirrels (Spermophilus richardsonii) were recorded near the
mouth of Hubberson Gulch. This was a breeding population as young -of -the -year were
observed near the entrance to an underground burrow. Bushy -tailed woodrat (Neotoma
cinerea) sign was seen in rock outcrops (sandstone bluffs) within the study area. A
female western jumping mouse (Zapus princeps) was caught by hand near the forb vegetation
reference site which is depicted on Exhibit 10-1 within the vegetation report. Burrows of
the northern pocket gopher (Thomomys talpoides) were observed in areas of deep soils
within drainages in the area and aspen communities. Also, golden -mantled ground squirrels
(Spermophilus lateralis) were observed throughout rocky and bushy areas of Hubberson Gulch
and other parts of the study area.
17
Medium -Sized
Mammals. Frequent observations of
porcupine (Erethizon dorsatum) were
recorded in
all of the habitats found within the
Seneca II -W study area. This mammal
species was
most commonly seen in the mixed brush
habitat, particularly in association
•
with Gambel
oak.
17