West Mojave Plan FEIR/S - Desert Managers Group

Regulatory Status: Federal Endangered.Threats Affecting the Lane Mountain Milkvetch: Few threats now exist for LaneMountain milk vetch. Its low numbers make it susceptible to extinction from stochastic(unanticipated random) events. Expansion of training corridors at Fort Irwin could threaten thisspecies. Increased activity within Fort Irwin or Goldstone Deep Space CommunicationsComplex could threaten undiscovered populations of this species. Club mining activities onCoolgardie Mesa are a potential threat. Off-road travel within occupied habitat is a potentialthreat.3.3.8.10 Little San Bernardino Mountains GiliaLife History: This plant is found in dry canyons and along desert washes on alluvialfans. It requires sandy, well-aerated soil on flat ground with few or no competing species. Densestands of weedy annuals are never present at occupied sites, which are all at the margins ofstreambeds.Population Status in the Planning Area: The plant is restricted to the Little SanBernardino Mountains and the northeast portion of the San Bernardino Mountains. Of twelvemajor areas of occurrence, ten are within the western Mojave Desert. These are scattered into anumber of discrete population segments, generally defined by drainage basins and washes.Regulatory Status: BLM Sensitive.Threats Affecting the Little San Bernardino Mountains Gilia: The greatest threat tothe species is rural and suburban development near Yucca Valley and the community of JoshuaTree. A secondary threat is OHV recreation in washes. Future channelization or flood controlprojects could threaten the occupied drainages. Two of the ten West Mojave occurrences arewithin Joshua Tree National Park, one is on BLM lands, and seven are on private land.3.3.8.11 Mojave MonkeyflowerLife History: Mojave monkeyflower is found in Joshua tree woodland and creosotebush scrub communities. It favors granitic soils, and is most often found on gravelly banks ofdesert washes. Occasionally it is found in sandy openings between creosote bushes and on rockyslopes above washes, areas that are not subject to regular water flows.Population Status in the Planning Area: The Mojave monkeyflower is a restrictedendemic whose entire range is within the western Mojave Desert. All occurrences are east of theMojave River, and most are south of Barstow. Major populations are found between Victorvilleand Barstow west of Interstate 15, and in the Ord-Rodman-Newberry Mountains area.Populations in the Waterman Hills north of Barstow are not threatened.Regulatory Status: BLM Sensitive.Chapter 3 3-190