2008-06-09_REVISION - C1980007 ‎(3)‎

• Permit No: C1980007
• IBM Index Class Name: Revision
• Doc Date: 6/9/2008
• Doc Name: Revised Pages Part 2
• Type & Sequence: TR111
• Media Type: D
• Archive: No

Chapter 3
with sagebrush., mountain slultb, Gambel
oak/servicebeny, and saltbush shrubland.
vegetation types at elevations of 5,700 feet to
.7,560 feet. It occurs adjacent to drainages and
dry washes and along roads (Spackman et al.
2002). Rocky Mountain thistle loosely
resembles the noxious weed Canada thistle
(Cirsium arvense). Its primary threat is the use
of biological control anal herbicides in the
management of non-native Cirsium spp.
(Panjabi and Anderson 2004). Ctu-rently, there
is insufficient evidence for Federal listing.
Panjabi and Anderson (2004) documented an
occun-ence on the Paonia Ranger District on
Land's End Mountain in 1997 (approximately
18 miles southwest of the project area). This
species has been. found at lower elevations on
BLM land in the "Redtop Peak area" about 6
miles northwest of the project area. In
addition, the Paonia District Rangeland
Management Specialist has located numerous
populations on the BLM Oak Ridge area and
the GMUG NF Sam's Divide area 6 miles to
the west of th.e project area. All known
populations on or near the Paonia Ranger
District have been. found below 7,700 feet. This
species has not been documented in the project
area; however, habitat of this type. likely occurs
there.
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Colorado tansy-aster (Machaeranthera
coloradoensis) is asouth-central Wyoming, and
central, west-central and western Colorado
endemic found in sparsely vegetated gravelly,
exposed soils of sedimentary or volcanic origin
(Beatty and others 2004). In Colorado, it is
associated with dry grassland communities
ranging from ponderosa pine (Pinus ponderosa)
to alpine fellfields and meadows at elevations
from 7,675 feet to 12,940 feet. The primary
threats to this species are direct and indirect
effects of motorized and non-motorized
recreation, and trail and road construction and
maintenance (Beatty and others 2004). Three
occurrences were documented in Gunnison
County in 1950, 1997, and 1999 (Beatty and
others 2004, USDI BLM 2000). Occurrences of
this species have not been documented in the
project area but its habitat is likely to occur.
Table 3-5
GMUG Sensitive Plants, Habitats, and Occurrence

Species'
Scientific Occurrence
on the Habitat
Known or
Habitat z
Name GMUG' Likely in
Project Area
Eriophorunz
Found in subalpine and alpine tundra zones
Whitebistle altaicu~n Known No in bogs, fens, wetlands and very wet
cottongrass streamsides at elevations from 10,160 to
var.neogaeum 13,198 feet (Ladyman 2004).
Found in subalpine and alpine wetlands and
Slender Eriophoru'n Known No peaty soils with poor drainage from
cottongrass gracile elevations of 7,000 to 11,140 feet (Decker,
Culver, and Anderson 2006a).
Lesser Montane and subalpine fens and wet
panicled Carex diandra Likely No meadows at elevations greater than 6,000
sedge feet (Gage and Cooper 2006).
Lesser yellow Cypripedium Found in mixed conifer and aspen stands
lady's slipper parvifloru~n Likely No from elevations of 5,800 to 12,683 feet on
calcerious soils (Mergen 2006).
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82 Deer Creek Ventilation Shaft and E Seam Methane Drainage wells FEIS