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There is widespread evidence that multiple drivers of global change, such as habitat degradation, invasive species, and climate change, are influencing wildlife. Understanding how these drivers interact with and affect species may be difficult because outcomes depend on the magnitude and duration of environmental change and the life history of the organism. In addition, various environmental drivers may be evaluated and managed at different spatial scales. We used a historical dataset from 1991 to 1994 and current information from 2010 to 2012 to examine whether occupancy patterns of wintering raptors were consistent with regional changes in distribution or habitat conditions within a local management unit, the...
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With shortening snow season duration, snowshoe hares are experiencing increased camouflage mismatch with their environment reducing survival. Phenological variation of hare molt at regional scales could facilitate local adaptation in the face of climate change, but the level of variation, especially along the southern range boundary, is unknown. Using a network of trail cameras and historical museum specimens, we (1) developed contemporary and historical molt phenology curves in the Upper Great Lakes region, USA.
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
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In addition to current distribution of each mammal species, this map shows their current and near-term status within the ecoregion. Current, long-term, and summary bioclimate data is also include for several of these mammal species. The input datasets used in the distribution model are also included. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential...
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This map shows the current, near-term, and long-term decadal averages of winter (December, January, February) total precipitation in the YKL study area. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. The BLM...
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This table contains information about the amount of each threat analysis attribute, indicator and metric quantified for the 6th level Hydrological Unit (HUC12). These attributes were calculated for the entire HUC 12, the streams within the HUC 12, or the riparian corridor within the HUC 12. The attributes were calculated using ArcMap Tools. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. The User is encouraged to carefully consider the content of the metadata file associated with these data.
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
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This set of 4 rasters shows winter (Dec to Feb) mean temperature (deg C * 10) for Western North America under the B1 Emissions Scenario from the Intergovernmental Panel on Climate Change (IPCC). One layer shows the historic period (1961 to 1990), and there are three layers of future climate projections representing the 2020s, the 2050s, and the 2080s. These future layers are ensemble averages across all 23 CMIP3 AOGCMs (Coupled Model Intercomparison Project 3 Atmosphere-Ocean General Circulation Models). All layers have a resolution of 1 km, and are designed to capture climate gradients, temperature inversions, and rain shadows in the mountainous landscape of western North America. These data, originally published...
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This data set represents the Wildlife Habitat Management Area boundaries. The Wyoming Game and Fish Department, under the direction of the Wyoming Game and Fish Commission, administers lands and public easement areas that are home to vast numbers of fish and wildlife. The department maintains approximately 413,000 acres of land under deed, lease or by agreement and continually strives to acquire new access areas. These areas include access to nearly 225 miles of streams, over 21,000 lake surface areas, and more than 148 miles of road right-of-ways. Management of these lands demonstrates our state's commitment to its precious wildlife heritage and those people who seek to enjoy our wildlife and wild lands. Wyoming's...
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This is an ArcGIS shapefile which depicts the seasonal salinity dynamics of 32 Gulf of Mexico estuaries. To characterize the dynamic nature of estuarine salinity gradients, a multivariate methodology (Bulger et al. 1993) was applied to derive five bio-salinity zones in four salinity seasons for 32 Gulf of Mexico estuaries (Christensen et al. 1997). This seasonal salinity zone spatial framework built upon and refined earlier studies which characterized salinity on an annual-averaged basis (NOAA 1985, Orlando et al. 1993, NOAA 2007). Precipitation, flow gage data, and monthly salinity averages were evaluated to determine which months would be used to represent the high, low, and transitional (increasing and decreasing)...
Categories: Data; Tags: Academics & scientific researchers, Apalachee Bay, Apalachicola Bay, Aransas Bay, Atchafalaya Bay, All tags...
Whole air drawn from four heights within the high elevation (3,340 m asl), deep, winter snowpack at Niwot Ridge, Colorado, were sampled into stainless steel canisters, and subsequently analyzed by gas chromatography for 51 volatile inorganic and organic gases. Two adjacent plots with similar snow cover were sampled, one over bare soil and a second one from within a snow-filled chamber where Tedlar/Teflon-film covered the ground and isolated it from the soil. This comparison allowed for studying effects from processes in the snowpack itself versus soil influences on the gas concentrations and fluxes within and through the snowpack. Samples were also collected from ambient air above the snow surface for comparison...
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The tabular dataset is a compilation of all historic observations of whooping crane locations up through 1941. Most of the records were obtained from Robert Porter Allen's 1952 report, "The Whooping Crane"; an additional 73 records were added from records found since 1952. Records include source (Allen 1952 [The Whooping Crane, Audubon]or other), location name, county, state or province, country (Canada, US, Mexico), estimated latitude and longitude, year, month, day, life stage (breeding, summering, wintering, migration, unknown), season (spring, summer, fall, winter), observer's name, and logical indicators of nesting, specimen taken, observer identified, or if captive bird. Completeness of each record is variable....
Recent energy development has resulted in rapid and large-scale changes to western shrub-steppe ecosystems without a complete understanding of its potential impacts on wildlife populations. We modeled winter habitat use by female greater sage-grouse (Centrocercus urophasianus) in the Powder River Basin (PRB) of Wyoming and Montana, USA, to 1) identify landscape features that influenced sage-grouse habitat selection, 2) assess the scale at which selection occurred, 3) spatially depict winter habitat quality in a Geographic Information System, and 4) assess the effect of coal-bed natural gas (CBNG) development on winter habitat selection. We developed a model of winter habitat selection based on 435 aerial relocations...
Although freeze?thaw cycles can alter soil physical properties and microbial activity, their overall impact on soil functioning remains unclear. This review addresses the effects of freeze?thaw cycles on soil physical properties, microorganisms, carbon and nutrient dynamics, trace gas losses and higher organisms associated with soil. I discuss how the controlled manipulation of freeze?thaw cycles has varied widely among studies and propose that, despite their value in demonstrating the mechanisms of freeze?thaw action in soils, many studies of soil freeze?thaw cycles have used cycle amplitudes, freezing rates and minimum temperatures that are not relevant to temperature changes across much of the soil profile in...
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This map contains the data layers and layout showing the Winter Flood Risk in Coldwater Fish Range by 4km analysis unit. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. The BLM should be cited as the data source...
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This set of 4 rasters shows winter (Dec to Feb) mean temperature (deg C * 10) for Western North America under the A2 Emissions Scenario from the Intergovernmental Panel on Climate Change (IPCC). One layer shows the historic period (1961 to 1990), and there are three layers of future climate projections representing the 2020s, the 2050s, and the 2080s. These future layers are ensemble averages across all 23 CMIP3 AOGCMs (Coupled Model Intercomparison Project 3 Atmosphere-Ocean General Circulation Models). All layers have a resolution of 1 km, and are designed to capture climate gradients, temperature inversions, and rain shadows in the mountainous landscape of western North America. These data, originally published...
map background search result map search result map Wildlife Habitat Management Areas for Wyoming at 1:24,000 Winter (Dec to Feb) Mean Temperature under the B1 Emissions Scenario (Western North America, 23 AOGCM Ensemble) Winter (Dec to Feb) Mean Temperature under the A2 Emissions Scenario (Western North America, 23 AOGCM Ensemble) Louisiana Waterthrush geographic range Worm-eating Warbler geographic range Kentucky Warbler geographic range Acadian Flycatcher geographic range FSA 10:1 NAIP Imagery m_4509116_ne_15_1_20150915_20151110 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4509116_sw_15_1_20150915_20151110 3.75 x 3.75 minute JPEG2000 from The National Map Whooping Crane historic observation records, 1722-1941 Dynamic Five-Zone Salinity Scheme - Gulf of Mexico BLM REA MIR 2011 CWF Winter Flood Threat BLM REA YKL 2011 Current, Near-Term, and Long-Term Winter Total Precipitation BLM REA CBR 2010 Terrestrial Species Mammals Status - Mule Deer BLM REA NGB 2011 Winter Flood Risk in Coldwater Fish Areas (4km) Snowshoe Hare Molt Characteristics at Study Sites from Contemporary and Historical Museum Specimens Across Wisconsin, Michigan and Minnesota from 1898 - 2007 FSA 10:1 NAIP Imagery m_4509116_ne_15_1_20150915_20151110 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4509116_sw_15_1_20150915_20151110 3.75 x 3.75 minute JPEG2000 from The National Map Wildlife Habitat Management Areas for Wyoming at 1:24,000 Dynamic Five-Zone Salinity Scheme - Gulf of Mexico Snowshoe Hare Molt Characteristics at Study Sites from Contemporary and Historical Museum Specimens Across Wisconsin, Michigan and Minnesota from 1898 - 2007 BLM REA MIR 2011 CWF Winter Flood Threat BLM REA NGB 2011 Winter Flood Risk in Coldwater Fish Areas (4km) BLM REA CBR 2010 Terrestrial Species Mammals Status - Mule Deer BLM REA YKL 2011 Current, Near-Term, and Long-Term Winter Total Precipitation Worm-eating Warbler geographic range Kentucky Warbler geographic range Acadian Flycatcher geographic range Louisiana Waterthrush geographic range Whooping Crane historic observation records, 1722-1941 Winter (Dec to Feb) Mean Temperature under the B1 Emissions Scenario (Western North America, 23 AOGCM Ensemble) Winter (Dec to Feb) Mean Temperature under the A2 Emissions Scenario (Western North America, 23 AOGCM Ensemble)