12/24/2023 0 Comments Battle snake nevada![]() A small area of external drainage in northern Nevada (Owyhee, Bruneau, Jarbidge, and Salmon Falls rivers) provides important lotic habitat and connections through the Snake River basin to the northern Rocky Mountains. In northern Nevada, the Humboldt River drains multiple ranges and a large catchment ( Shiozawa and Rader 2005), and its 560-km east-west course ends near Lovelock in a large playa or sink. These short rivers flow eastward into Nevada, where they terminate in desert lakes or playas ( Appendix 2). In western Nevada, the Truckee (including Lake Tahoe), Carson, and Walker rivers derive most of their discharge from the forested, high-elevation snowfall regions of the Sierra Nevada in California. Most of Nevada's streams are small, with important exceptions. Thus, many Nevada streams are strongly insular at the scale of mountain ranges (sky islands) and, within ranges, at the scale of catchments. ![]() Individual streams on many ranges flow separately into desert valleys, where they disappear by evapotranspiration and infiltration. Site with Pteronarcys californica, Calineuria californica, and Claassenia sabulosa. Nevada has few natural mountain lakes except for a significant lake district in the Ruby-East Humboldt Ranges (>20 lakes), a smaller set (5 lakes) in the Snake Range, and a few in the Jarbidge and Pine Forest Mountains. More than 4000 named springs are known, but when unnamed springs are added, the total is >30,000 ( Stevens and Meretsky 2008, Abele 2011, Wildlife Action Plan Team 2012). Nevada has more than 2400 named streams, though some are dry channels that only flow briefly during cloudbursts or spring snowmelt. 1) that are used by many aridland species and the aquatic invertebrate fauna, including stoneflies ( Appendix 1). Most precipitation falls on the higher ranges, giving rise to surprisingly numerous streams and springs ( Fig. Long block-faulted ranges trending north-south are separated by parallel valleys, many of which are independent closed basins ( Fiero 2009). ![]() Mean elevation for the state is 1676 m (maximum 4005 m minimum 146 m). Countering its label as a basin, Nevada is dramatically mountainous with 300 named ranges, 27 of these exceeding 3048 m (10,000 feet) elevation. An orographic rain shadow imposes an arid climate and landscapes of xeric vegetation from the eastern flank of the Sierra Nevada to the Rocky Mountains. The state of Nevada (area 284,396 km 2) lies east of the Sierra Nevada-Cascade mountain system and is dominated by the Great Basin ( Trimble 1989, Grayson 2011), a region of internal drainage covering most of Nevada and portions of adjoining states. In this paper we assemble and synthesize distributional records for an aquatic insect order across a large arid region of the western USA. 2012), but such knowledge is incomplete and biased for many taxa, habitats, and regions ( Whittaker et al. Information on species distributions is a cornerstone of ecological and evolutionary research and of conservation applications ( Jetz et al. ![]() Stonefly Species with Distributions Close to Nevada.Zoogeographic Patterns in Nevada Stoneflies.Seasonal Presence of Adult Stoneflies in Nevada.Abundance of Stonefly Families and Life Stages in Collections.Stonefly Distributions in Northern and Southern Nevada.History of Stonefly Collections and Studies in Nevada. ![]()
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