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Bureau of Land Management's Decision Record and Environmental

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Jersey Valley Geothermal Development Project<br />

<strong>Environmental</strong> Assessment: NV063-EAO8-091<br />

did not observe any sage-grouse sign within the transmission line corridor during their 2008<br />

survey.<br />

Pygmy Rabbit<br />

Pygmy rabbits are North America’s smallest rabbits, <strong>and</strong> the only rabbits that commonly<br />

construct their own burrows, usually in st<strong>and</strong>s <strong>of</strong> tall, dense sagebrush in locations with deep,<br />

loose soils. Pygmy rabbits are patchily distributed throughout most <strong>of</strong> the Great Basin. Though<br />

locally common, these animals have apparently never been generally abundant during historical<br />

times, <strong>and</strong> may have undergone serious population declines, habitat <strong>and</strong> population<br />

fragmentation, <strong>and</strong> local extinction in recent decades. Pygmy rabbits are sagebrush obligates <strong>and</strong><br />

their decline is probably closely related to loss <strong>and</strong> degradation <strong>of</strong> sagebrush habitats<br />

(Stamm 2006).<br />

Pygmy habitat was marginal within the surveyed portions <strong>of</strong> the Jersey Valley Unit Area <strong>and</strong><br />

neither pygmy rabbits nor their sign (i.e. burrows, droppings, etc.) were observed (GBE 2008).<br />

The sagebrush associated with some <strong>of</strong> the drainages crossed by the transmission line corridor<br />

appeared to be suitable habitat for the pygmy rabbit. These drainages were extensively surveyed<br />

<strong>and</strong> no pygmy rabbits or their sign were observed during the field survey (GBE 2008).<br />

Lahontan beardtongue<br />

Lahontan beardtongue is a tall perennial herb with w<strong>and</strong>-like stems <strong>and</strong> showy pink tubular<br />

flowers with darker markings. It is typically found along washes, roadsides <strong>and</strong> canyon floors,<br />

particularly on carbonate-containing substrates, usually where subsurface moisture is available<br />

throughout most <strong>of</strong> the summer (NNHP 2001c). It is found at elevations between 3,400 <strong>and</strong><br />

4,550 feet amsl.<br />

Given the elevation <strong>and</strong> soils within the Jersey Valley Unit Area, suitable habitat could exist.<br />

However, the only water sources available throughout the summer were the hot springs <strong>and</strong> the<br />

associated soils are not suitable for this species. No Lahontan beardtongue was observed during<br />

the survey period within the Jersey Valley Unit Area (GBE 2008). Within the transmission line<br />

corridor, neither Lahontan beardtongue populations nor suitable habitat were observed<br />

(GBE 2008).<br />

Windloving buckwheat<br />

At high elevations the Windloving buckwheat is found on dry, exposed, relatively barren <strong>and</strong><br />

undisturbed, gravelly, limestone or volcanic ridges <strong>and</strong> ridgeline knolls, on outcrops or shallow<br />

rocky soils over bedrock, with Artemisia arbuscula, Ericameria viscidflora, Poa secunda,<br />

Elymus elymoides, Arenaria kingii, etc. At low elevations the Windloving buckwheat is found on<br />

dry, relatively barren <strong>and</strong> undisturbed knolls <strong>and</strong> slopes <strong>of</strong> light-colored, platy volcanic tuff<br />

weathered to form stiff clay soils, on all aspects, with Tetradymia canescens, Ericameria<br />

nauseosa, E. viscidiflora, Atrilex confertifolia, Elymus elymoides, Elymus cinereus, Astragalus<br />

calycosus, etc (NNHP 2001a).<br />

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