Collaborative Management and Research in the Great Basin — Examining the Issues and Developing a Framework for Action
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One of Five West Coast, Low-Latitude Deserts of the World, the Namib Extends Along the Entire Namibian Coastline in an 80-120 Km Wide Belt
N A M I B I A G 3 E 0 O 9 1 L - O Y G E I V C R A U S L NAMIB DESERT Source: Roadside Geology of Namibia One of five west coast, low-latitude deserts of the world, the Namib extends along the entire Namibian coastline in an 80-120 km wide belt. Its extreme aridity is the result of the cold, upwelling Benguela Current, which flows up the west coast of Africa as far as Angola, and because of its low temperatures induces very little evaporation and rainfall (<50 mm per year). It does, however, create an up to 50 km wide coastal fog belt providing sufficient moisture for the development of a specialist flora and fauna, many of which are endemic to the Namib. In addition, the lagoons at Walvis Bay and Sandwich Harbour are designated wetlands of international importance, because of their unique setting and rich birdlife, including flamingo, white pelican and Damara tern. Larger mammals like the famed desert elephant, black rhino, lion, cheetah and giraffe can be found along the northern rivers traversing the Skeleton Coast National Park. Geomorphologically, the Namib includes a variety of landscapes, including classic sand dunes, extensive gravel plains, locally with gypcrete and calcrete duricrusts, elongated salt pans, ephemeral watercourses forming linear oases, inselbergs and low mountain ranges. Along the coast, wind-swept sandy beaches alternate with rocky stretches, in places carved into striking rock formations (e.g. Bogenfels Arch). Designated a UNESCO World Heritage Site in 2013, the “Namib Sand Sea“ between Lüderitz and the Kuiseb River encompasses such well-known landmarks as Sossusvlei and Sandwich Harbour, while the fabled Skeleton Coast north of the Ugab River is notorious for its numerous ship wrecks. -
Big Changes in the Great Basin Gail Wells Gail Wells Communications
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln JFSP Fire Science Digests U.S. Joint Fire Science Program 2008 Big Changes in the Great Basin Gail Wells Gail Wells Communications Follow this and additional works at: http://digitalcommons.unl.edu/jfspdigest Part of the Forest Biology Commons, Forest Management Commons, Other Forestry and Forest Sciences Commons, and the Wood Science and Pulp, Paper Technology Commons Wells, Gail, "Big Changes in the Great Basin" (2008). JFSP Fire Science Digests. 3. http://digitalcommons.unl.edu/jfspdigest/3 This Article is brought to you for free and open access by the U.S. Joint Fire Science Program at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in JFSP Fire Science Digests by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. FIRE SCIENCE DIGEST ISSUE 3 JUNE 2008 ISSUE 3 JUNE 2008 Big Changes in the Great Basin JFSP-funded researchers are exploring the ecological functioning of sagebrush-steppe communities in the Great Basin and other places in the dry Intermountain West. Their work is helping managers effectively use tools such as tree mastication and prescribed fire to help these communities become more resilient in the face of invasive weeds. Other research is finding ways to reestablish native vegetation on sites where weedy invaders have pushed the community past the point where it can recover on its own. FIRE SCIENCE DIGEST ISSUE 3 JUNE 2008 When it comes to endangered ecosystems, the Last summer’s Murphy Complex fire in Idaho and arid Intermountain West has more than its share. -
The Great Basin Landscape Conservation Cooperative
September 2010 The Great Basin Landscape Conservation Cooperative What is a Landscape Conservation The Great Basin Landscape Cooperative? Conservation Cooperative Landscape Conservation Cooperatives (LCCs) are applied science and management partnerships between Interior Department bureaus and others involved in natural resource management and What is the Great Basin LCC? conservation. Secretarial Order No. 3289, issued on Sept. 14, 2009 The Great Basin LCC will be a self-directed partnership. The by Interior Secretary Ken Salazar, calls for the establishment of 21 Great Basin LCC will provide a range of scientific and technical LCCs nationwide to better integrate science and management to support tools for landscape-scale conservation design to a wide address climate change and related issues array of managers. These tools will help managers identify and target biological objectives for native species and habitats in the What will the Great Basin LCC do? face of climate change and other stressors. Open public access to In broad terms, the Great Basin LCC will help link and integrate Great Basin LCC products will promote acceptance and use of Interior’s proposed Climate Science Centers with resource managers the science in regional conservation strategies. This effort is being and science users; will bring additional Interior resources to bear on coordinated with other regional partnerships and will be set up in landscape-scale issues and opportunities; and will help in applying a manner that will facilitate coordination and the identification science and facilitating coordination on a wide range of efforts of needs, capacities and gaps. We will link our efforts to bring to respond to climate change, invasive species, wildfires, human additional science capacity to improve conservation strategies development and other change agents across the Great Basin. -
The Diffusion of Maize to the Southwestern United States and Its Impact
PERSPECTIVE The diffusion of maize to the southwestern United States and its impact William L. Merrilla, Robert J. Hardb,1, Jonathan B. Mabryc, Gayle J. Fritzd, Karen R. Adamse, John R. Roneyf, and A. C. MacWilliamsg aDepartment of Anthropology, National Museum of Natural History, Smithsonian Institution, P.O. Box 37102, Washington, DC 20013-7012; bDepartment of Anthropology, One UTSA Circle, University of Texas at San Antonio, San Antonio, TX 78249; cHistoric Preservation Office, City of Tucson, P.O. Box 27210, Tucson, AZ 85726; dDepartment of Anthropology, Campus Box 1114, One Brookings Drive, Washington University, St. Louis, MO 63130; eCrow Canyon Archaeological Center, 23390 Road K, Cortez, CO 81321; fColinas Cultural Resource Consulting, 6100 North 4th Street, Private Mailbox #300, Albuquerque, NM 87107; and gDepartment of Archaeology, 2500 University Drive Northwest, University of Calgary, Calgary, Alberta, Canada T2N 1N4 Edited by Linda S. Cordell, University of Colorado, Boulder, CO, and approved October 30, 2009 (received for review June 22, 2009) Our understanding of the initial period of agriculture in the southwestern United States has been transformed by recent discoveries that establish the presence of maize there by 2100 cal. B.C. (calibrated calendrical years before the Christian era) and document the processes by which it was integrated into local foraging economies. Here we review archaeological, paleoecological, linguistic, and genetic data to evaluate the hypothesis that Proto-Uto-Aztecan (PUA) farmers migrating from a homeland in Mesoamerica intro- duced maize agriculture to the region. We conclude that this hypothesis is untenable and that the available data indicate instead a Great Basin homeland for the PUA, the breakup of this speech community into northern and southern divisions Ϸ6900 cal. -
Energy Development and the Changing Economy of the West
A Report from the ENERGY AND THE WEST Series by Energy Development and the Changing Economy of the West September 2008 Energy Development and the Changing Economy of the West Headwaters Economics Bozeman, Montana September, 2008 - revised 06/24/09 PUBLISHED ONLINE : www.headwaterseconomics.org/energy ABOUT HEADWATERS ECONOMICS Headwaters Economics is an independent, nonprofit research group. Our mission is to improve community development and land management decisions in the West. P.O. Box 7059 Bozeman, MT 59771 406-599-7423 www.headwaterseconomics.org Cover design and layout by Michael Cutter. ii ABOUT THE ENERGY AND THE WEST SERIES This report is the first in a series Energy and the West published by Headwaters Economics on the topic of energy development. This series is designed to assist the public and public officials in making informed choices about energy development that will benefit the region over the long term. In the reports in the Energy and the West series listed below, we consider the policy context for en- ergy development in the West. Our focus is the impact of energy development on states, counties, and communities, from the perspectives of economic performance (i.e., jobs, personal income, wages) and fiscal health (i.e., state and county budgets, revenues and expenses). The series also includes state and local area case studies that explore benefits and costs in greater detail. Titles in the Energy and the West series: • Energy Development and the Changing Economy of the West • U.S. Energy Needs and the Role of Western -
The Mountain Research Initiative (MRI): What Comes Next?
Mountain Views (Nov 2012) The Mountain Research Initiative (MRI): What Comes Next? The Mountain Research Initiative (MRI) promotes and coordinates global change resesarch in mountains around the world. It arose from the International Geosphere and Biosphere (IGBP), and the International Human Dimensions (IHDP) Programs in 2002, is funded by the Swiss National Science Foundation and is based at the Geography Institute of the University of Bern. The MRI continually searches for the next steps in promoting global change research in mountains. Since the Swiss National Science Foundation (SNSF) renewed the MRI's funding in 2010, the MRI has pursued its program of global and regional networking activities, synthesis workshops, and new communication modes, but is going beyond them now to investigate more sustained efforts. While any research into global change in mountains represents progress, research that adds to an understanding of the "whole system" - the coupled human-natural system within mountains as it is embedded within the planetary earth system of atmosphere, oceans and continents - is one of MRI's principal scientific goals. The MRI makes liberal use of the "analytical structure" of its parent scientific organization, the Global Land Project, as it captures the linkages and the embedded-ness and speaks as well to the evolution of the whole system toward or away from sustainability. Figure 1. The Global Land Project analytical structure (GLP 2005) This emphasis on whole systems creates a certain tension in MRI's work, as research by its analytic nature, tends to focus on mechanisms and parts of systems. This is as it should be: to create an integrated understanding, one must have parts to integrate! Thus, while encouraging research on specific parts of the coupled human-natural system, MRI must at the same time promote the continual interrogation of how these parts come together to create a whole system. -
Speleothem Paleoclimatology for the Caribbean, Central America, and North America
quaternary Review Speleothem Paleoclimatology for the Caribbean, Central America, and North America Jessica L. Oster 1,* , Sophie F. Warken 2,3 , Natasha Sekhon 4, Monica M. Arienzo 5 and Matthew Lachniet 6 1 Department of Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37240, USA 2 Department of Geosciences, University of Heidelberg, 69120 Heidelberg, Germany; [email protected] 3 Institute of Environmental Physics, University of Heidelberg, 69120 Heidelberg, Germany 4 Department of Geological Sciences, Jackson School of Geosciences, University of Texas, Austin, TX 78712, USA; [email protected] 5 Desert Research Institute, Reno, NV 89512, USA; [email protected] 6 Department of Geoscience, University of Nevada, Las Vegas, NV 89154, USA; [email protected] * Correspondence: [email protected] Received: 27 December 2018; Accepted: 21 January 2019; Published: 28 January 2019 Abstract: Speleothem oxygen isotope records from the Caribbean, Central, and North America reveal climatic controls that include orbital variation, deglacial forcing related to ocean circulation and ice sheet retreat, and the influence of local and remote sea surface temperature variations. Here, we review these records and the global climate teleconnections they suggest following the recent publication of the Speleothem Isotopes Synthesis and Analysis (SISAL) database. We find that low-latitude records generally reflect changes in precipitation, whereas higher latitude records are sensitive to temperature and moisture source variability. Tropical records suggest precipitation variability is forced by orbital precession and North Atlantic Ocean circulation driven changes in atmospheric convection on long timescales, and tropical sea surface temperature variations on short timescales. On millennial timescales, precipitation seasonality in southwestern North America is related to North Atlantic climate variability. -
Interest and the Panamint Shoshone (E.G., Voegelin 1938; Zigmond 1938; and Kelly 1934)
109 VyI. NOTES ON BOUNDARIES AND CULTURE OF THE PANAMINT SHOSHONE AND OWENS VALLEY PAIUTE * Gordon L. Grosscup Boundary of the Panamint The Panamint Shoshone, also referred to as the Panamint, Koso (Coso) and Shoshone of eastern California, lived in that portion of the Basin and Range Province which extends from the Sierra Nevadas on the west to the Amargosa Desert of eastern Nevada on the east, and from Owens Valley and Fish Lake Valley in the north to an ill- defined boundary in the south shared with Southern Paiute groups. These boundaries will be discussed below. Previous attempts to define the Panamint Shoshone boundary have been made by Kroeber (1925), Steward (1933, 1937, 1938, 1939 and 1941) and Driver (1937). Others, who have worked with some of the groups which border the Panamint Shoshone, have something to say about the common boundary between the group of their special interest and the Panamint Shoshone (e.g., Voegelin 1938; Zigmond 1938; and Kelly 1934). Kroeber (1925: 589-560) wrote: "The territory of the westernmost member of this group [the Shoshone], our Koso, who form as it were the head of a serpent that curves across the map for 1, 500 miles, is one of the largest of any Californian people. It was also perhaps the most thinly populated, and one of the least defined. If there were boundaries, they are not known. To the west the crest of the Sierra has been assumed as the limit of the Koso toward the Tubatulabal. On the north were the eastern Mono of Owens River. -
Spatially-Explicit Modeling of Modern and Pleistocene Runoff and Lake Extent in the Great Basin Region, Western United States
Spatially-explicit modeling of modern and Pleistocene runoff and lake extent in the Great Basin region, western United States Yo Matsubara1 Alan D. Howard1 1Department of Environmental Sciences University of Virginia P.O. Box 400123 Charlottesville, VA 22904-4123 Abstract A spatially-explicit hydrological model balancing yearly precipitation and evaporation is applied to the Great Basin Region of the southwestern United States to predict runoff magnitude and lake distribution during present and Pleistocene climatic conditions. The model iteratively routes runoff through, and evaporation from, depressions to find a steady state solution. The model is calibrated with spatially-explicit annual precipitation estimates and compiled data on pan evaporation, mean annual temperature, and total yearly runoff from stations. The predicted lake distribution provides a close match to present-day lakes. For the last glacial maximum the sizes of lakes Bonneville and Lahontan were well predicted by linear combinations of decrease in mean annual temperature from 0 to 6 °C and increases in precipitation from 0.8 to 1.9 times modern values. Estimated runoff depths were about 1.2 to 4.0 times the present values and yearly evaporation about 0.3 to 1 times modern values. 2 1. Introduction The Great Basin of the southwestern United States in the Basin and Range physiographic province contains enclosed basins featuring perennial and ephemeral lakes, playas and salt pans (Fig. 1). The Great Basin consists of the entire state of Nevada, western Utah, and portions of California, Idaho, Oregon, and Wyoming. At present it supports an extremely dry, desert environment; however, about 40 lakes (some reaching the size of present day Great Lakes) episodically occupied the Great Basin, most recently during the last glacial maximum (LGM) [Snyder and Langbein, 1962; Hostetler et al., 1994; Madsen et al., 2001]. -
Threats to Western United States Riparian Ecosystems: a Bibliography
Threats to Western United States Riparian Ecosystems: A Bibliography Boris Poff, Karen A. Koestner, Daniel G. Neary, and David Merritt United States Department of Agriculture / Forest Service Rocky Mountain Research Station General Technical Report RMRS-GTR-269 December 2012 Poff, Boris; Koestner, Karen A.; Neary, Daniel G.; Merritt, David. 2012. Threats to western United States riparian ecosystems: A bibliography. Gen. Tech. Rep. RMRS-GTR-269. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 78 p. Abstract __________________________________________________ This bibliography is a compendium of state-of-knowledge publications about the threats affecting western U.S. riparian ecosystems and is a companion to the website: http://www.rmrs.nau.edu/ awa/ripthreatbib/. The website contains abstracts and access to many of the publications via PDFs, or it directs the readers to websites where PDFs of the publication can be viewed or obtained. The bibliography is ordered alphabetically and the type of threats discussed in each publication is highlighted. These threats include agriculture, climate change, dam construction, disease, drought, invasive species, fire, floods, flow regulation, forest harvesting, grazing, groundwater depletion, insects, mining, recreation, roads, water diversions, urbanization, and water quality. Keywords: ecosystem, riparian, soil, water, watersheds, hydrology, threats, vegetation, wildlife, drought, floods, grazing, invasive plants Authors _____________________________ David Merritt, Riparian Ecologist, U.S. Department of Agri- culture, Rocky Mountain Research Station, Forest Service, Boris Poff, District Hydrologist, Bureau of Land Management, Stream Systems Technology Center, Fort Collins, Colorado. Las Vegas, Nevada. Karen A. Koestner, Hydrologic Research Technician, U.S. Acknowledgments ____________________ Department of Agriculture, Forest Service, Rocky Mountain Research Station, Forestry Sciences Laboratory, Flagstaff, This effort was funded by a grant from the U.S. -
Contemporary Uplift of the Sierra Nevada, Western United States, from GPS and Insar Measurements
Contemporary uplift of the Sierra Nevada, western United States, from GPS and InSAR measurements William C. Hammond1*, Geoffrey Blewitt1, Zhenhong Li2, Hans-Peter Plag1, and Corné Kreemer1 1Nevada Geodetic Laboratory, Nevada Bureau of Mines and Geology, and Nevada Seismological Laboratory, University of Nevada, Reno, Nevada 89557, USA 2Centre for the Observation and Modelling of Earthquakes, Volcanoes and Tectonics (COMET+), School of Geographical and Earth Sciences, University of Glasgow, Glasgow G12 8QQ, UK ABSTRACT particular, the EarthScope Plate Boundary Observatory has provided hun- Modern space geodesy has recently enabled the direct observation dreds of new stations in California and Nevada, including about a dozen of slow geological processes that move and shape Earth’s surface, includ- on the west slope of the Sierra Nevada. We processed all available GPS ing plate tectonics and crustal strain accumulation that leads to earth- data to obtain station height time series, and fi t them with a six-parameter quakes. More elusive has been the direct observation of active moun- empirical model including an epoch position, a velocity, and an amplitude tain growth, because geodetic measurements have larger uncertainties and phase of annual and semiannual harmonic constituents (to model sea- in the vertical direction, while mountain growth is typically very slow. sonal effects). To enhance the signal-to-noise ratio, we used GPS vertical For the Sierra Nevada of California and Nevada, western United States, velocities based on over 3 yr of data with 1σ rate uncertainties ≤1.0 mm/yr, the history of elevation is complex, exhibiting features of both ancient and required that the empirical model adequately fi t the data (Fig. -
North American Deserts Chihuahuan - Great Basin Desert - Sonoran – Mojave
North American Deserts Chihuahuan - Great Basin Desert - Sonoran – Mojave http://www.desertusa.com/desert.html In most modern classifications, the deserts of the United States and northern Mexico are grouped into four distinct categories. These distinctions are made on the basis of floristic composition and distribution -- the species of plants growing in a particular desert region. Plant communities, in turn, are determined by the geologic history of a region, the soil and mineral conditions, the elevation and the patterns of precipitation. Three of these deserts -- the Chihuahuan, the Sonoran and the Mojave -- are called "hot deserts," because of their high temperatures during the long summer and because the evolutionary affinities of their plant life are largely with the subtropical plant communities to the south. The Great Basin Desert is called a "cold desert" because it is generally cooler and its dominant plant life is not subtropical in origin. Chihuahuan Desert: A small area of southeastern New Mexico and extreme western Texas, extending south into a vast area of Mexico. Great Basin Desert: The northern three-quarters of Nevada, western and southern Utah, to the southern third of Idaho and the southeastern corner of Oregon. According to some, it also includes small portions of western Colorado and southwestern Wyoming. Bordered on the south by the Mojave and Sonoran Deserts. Mojave Desert: A portion of southern Nevada, extreme southwestern Utah and of eastern California, north of the Sonoran Desert. Sonoran Desert: A relatively small region of extreme south-central California and most of the southern half of Arizona, east to almost the New Mexico line.