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In 2002, Rocky Mountain Bird Observatory (RMBO), in cooperation with Bureau of Land Management, U.S. Forest Service, Wyoming Game and Fish Department, and the Wyoming Partners In Flight group, implemented a long-term, habitat-based bird monitoring program designed to provide rigorous population trend data on most diurnal, regularly occurring breeding bird species in Wyoming (Leukering et al. 2001). Modeled after Monitoring Colorado’s Birds (Leukering et al. 2000), this program is entitled Monitoring Wyoming’s Birds (MWB). Monitoring Wyoming’s Birds is consistent with goals emphasized in the Partners In Flight National Landbird Monitoring Strategy (Bart et al. 2001) and, in addition to monitoring bird...
Categories: Publication; Tags: WLCI, WLCI Agency Report
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The northern leopard frog (Rana pipiens) is a formerly abundant frog that has experienced significant declines across its range and is considered endangered in some parts of the range but still abundant in other parts of the range. Various factors have been invoked to explain population declines in the northern leopard frog, including habitat destruction, diseases, chemical contamination, acidification, increased ultraviolet light due to loss of the ozone layer, introduced predators, overcollecting, climatic changes, and general environmental degradation. However, no one cause has emerged as the primary factor behind population declines in any area. Probably, multiple causes contribute to population...
Categories: Publication; Tags: BLM, WLCI, WLCI Agency Report
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The data contained in this report was compiled, modified, and analyzed for the Wyoming Landscape Conservation Initiative (WLCI) Integrated Assessment (IA). The WLCI is a long-term science based effort to assess and enhance aquatic and terrestrial habitats at a landscape scale in southwest Wyoming while facilitating responsible energy development through local collaboration and partnerships. The IA is an integrated synthesis and analysis of WLCI resource values based on best available data and information collected from multiple agencies and organizations. It is a support tool for landscape-scale conservation planning and evaluation, and a data and analysis resource that can be used for addressing specific management...
Flannelmouth sucker (Catostomus latipinnis), bluehead sucker (Catostomus discobolus), and roundtail chub (Gila robusta), hereafter target species, are native to the Colorado River basin and have undergone declines in both abundance and distribution throughout their ranges. Due to these declines, state and federal agencies have entered into a range-wide conservation agreement and strategy to ensure the persistence of these species in their native ranges (Utah Division of Wildlife Resources 2006) Weitzel (2002) reports that these three species were historically abundant in the Green River watershed of southwestern Wyoming. However, populations have declined in Wyoming (Weitzel 2002) and throughout the...
Categories: Publication; Tags: WLCI, WLCI Agency Report
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The dwarf shrew (Sorex nanus) is one of the smallest mammals in the world, and inhabits a variety of habitats in western North America. Very little is known about this shrew, and relatively few specimens have been collected. Like most members of Soricidae, the dwarf shrew has a long and pointed nose, small eyes and ears, and a small body. It is difficult to distinguish from other shrews and generally has to be identified by dental characteristics. The dwarf shrew occurs primarily in mountainous areas, apparently preferring rock outcrops and talus slopes in alpine, subalpine, and montane settings. However, it has been occasionally found in lower and more arid environments such as shortgrass prairie, shrub-steppe,...
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Myotis evotis (long-eared myotis), a former Category 2 Candidate, is currently recognized by several federal and state agencies as a sensitive species, in part because very little information exists to provide evaluations on population status and viability locally or rangewide. Primary threats to M. evotis are roost disturbance (especially that leading to loss or destruction of roosting structures), habitat alteration, and toxic chemicals. Roost disturbance (especially of maternity roosts and hibernacula) can take the form of direct human contact or alternation of the roost environment. Habitat alteration refers to modification of any component of the required habitat mosaic, (e.g., presence and quality...
Categories: Publication; Tags: BLM, WLCI, WLCI Agency Report
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The Brewer’s Sparrow (Spizella breweri) has significantly declined throughout its breeding range in the last 25 years (Ashley and Stoval 2004). Despite being thought of by many as the most common bird in spring and summer in shrubsteppe habitat, the Brewer’s Sparrow has been given special conservation status in several western states, including Wyoming (Knick and Rotenberry 2000). Habitat fragmentation and other processes threaten Brewer’s Sparrow populations in several ways. In this report, shrubsteppe is defined as habitat with a “…codominance of sagebrush [Artemesia spp.] and native bunch grass and moderate shrub cover” (B. Walker, personal communication). This report reviews key published literature,...
Categories: Publication; Tags: BLM, WLCI, WLCI Agency Report
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The Habitat Quality Index (HQI) Procedures Manual is a step-by-step guide to the HQI method, which is used to evaluate trout habitat in Rocky Mountain streams. Purpose of the manual is to provide guidance and standards for conducting HQI evaluations. Subjects discussed included preliminary planning, station selection and layout, equipment, data sources, habitat measurements and HQI calculations. The manual promotes familiarity with the HQI by explaining how and what to measure, as well as proper techniuqes and any useful shortcuts. Text instruction are augmented by photos and line drawings. Several examples and case studies illustrate HQI evaluation procedures.
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This data set defines boundaries of oil and gas project areas, greater sage-grouse (Centrocercus urophasianus) core areas, and non-core and non-project areas within the Wyoming Landscape Conservation Initiative (WLCI; southwestern Wyoming). Specifically, the data represents results from the manuscript “Combined influences of future oil and gas development and climate on potential Sage-grouse declines and redistribution” for high oil and gas development, low population size, and no climate component. The oil and gas development scenario were based on an energy footprint model that simulates well, pad, and road patterns for oil and gas recovery options that vary in well types (vertical and directional) and number...
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This synthesized results data set is a normalized unit-less layer represent the varying levels of importance of land parcels associated with agriculture in the WLCI region. This raster represents a normalized sum for 9 spatial data sets: irrigated acreage in wet years, irrigated acreage in dry years, land classification for pasture/rangeland/ production, important grazing and calving areas, buffered locations of water 'guzzlers,' an elk depredation claims index, a mule deer depredation claims index, an antelope depredation claims index, an index based on the age of agricultural buildings associated with land parcels. These data represent an initial step towards spatially identifying lands that represent greater...
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The Wyoming Game and Fish Department (WGFD) first developed a stream classification system in 1961. The inaugural system was intended to identify and rank the most important coldwater recreational fisheries to the State. Over time the system was also used to assess the relative potential impacts of proposed development projects to streams. The system also was adapted as one component in a land use management program to assess the relative value of properties being considered for acquisition by WGFD. The stream ranking protocol was periodically modified over the years. In its present form, streams are ranked using a combination of scores for productivity, accessibility and esthetics. In recent years, fisheries...
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The pygmy rabbit (Brachylagus idahoensis) is the smallest of any North American rabbit species. It was first described as Lepus idahoensis in 1891 by Meriam (Meriam 1891). It is endemic to sagebrush habitats in the Great Basin and adjacent intermountain areas and typically occupies tall and dense sagebrush patches. Pygmy rabbits are dietary specialists on big sagebrush. They are considered a keystone species in big sagebrush communities because they don’t thrive in habitats dominated by other shrub species, they exhibit a unique fossorial behavior, other species of vertebrates and invertebrates use their extensive burrow system, and they provide a reliable food supply for terrestrial and avian predators...
Categories: Publication; Tags: BLM, WLCI, WLCI Agency Report


map background search result map search result map Change Agents - Energy - Total Coal Mines Change Agents - Current Road Density BLM Wilderness Study Areas Future Change - Total Species Assessment for Western Long-Eared Myotis (Myotis Evotis) in Wyoming Trout Unlimited-Coldwater Fisheries Data Condition Index - Aquatic - Focal Species Federal Protected Lands Lands (NPS Units, FWS Refuges, USFS Wilderness) Habitat Quality Index Procedures Manual Species Assessment For The Northern Leopard Frog (Rana Pipiens) In Wyoming Modification of The Wyoming Game and Fish Department’s System For Classifying Stream Fisheries Addendum to Monitoring Wyoming's Birds, 2002-2004 Final Report Species Assessment for Dwarf Shrew (Sorex Nanus) in Wyoming Species Assessment for Brewer's Sparrow (Spizella Breweri) in Wyoming Species Assessment For Pygmy Rabbit (Brachylagus Idahoensis) In Wyoming WLCI - Important Agricultural Lands Assessment (Normalized Importance Index) WLCI - Important Agricultural Lands Assessment (Input Raster: Resource Index-Terrestrial-Agriculture-Important Agricultural Lands) Greater sage-grouse population change (percent change) in a high oil and gas development, low population estimate scenario, and with no effects of climate change (2006-2062) BLM Wilderness Study Areas Federal Protected Lands Lands (NPS Units, FWS Refuges, USFS Wilderness) WLCI - Important Agricultural Lands Assessment (Normalized Importance Index) WLCI - Important Agricultural Lands Assessment (Input Raster: Resource Index-Terrestrial-Agriculture-Important Agricultural Lands) Change Agents - Energy - Total Change Agents - Current Road Density Future Change - Total Trout Unlimited-Coldwater Fisheries Data Coal Mines Condition Index - Aquatic - Focal Species Greater sage-grouse population change (percent change) in a high oil and gas development, low population estimate scenario, and with no effects of climate change (2006-2062) Species Assessment for Western Long-Eared Myotis (Myotis Evotis) in Wyoming Habitat Quality Index Procedures Manual Species Assessment For The Northern Leopard Frog (Rana Pipiens) In Wyoming Modification of The Wyoming Game and Fish Department’s System For Classifying Stream Fisheries Addendum to Monitoring Wyoming's Birds, 2002-2004 Final Report Species Assessment for Dwarf Shrew (Sorex Nanus) in Wyoming Species Assessment for Brewer's Sparrow (Spizella Breweri) in Wyoming Species Assessment For Pygmy Rabbit (Brachylagus Idahoensis) In Wyoming