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Fire severity, frequency, and extent are expected to change dramatically in coming decades in response to changing climatic conditions, superimposed on the adverse cumulative effects of various human-related disturbances on ecosystems during the past 100 years or more. To better gauge these expected changes, knowledge of climatic and human influences on past fire regimes is essential. We characterized the temporal and spatial properties of fire regimes in ponderosa pine forests of the southern San Juan Mountains of southwestern Colorado by collecting 175 fire-scarred tree samples from nine sites across a wide range of topographic settings. All tree rings and fire scars were dated using standard dendrochronological...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Colorado,
Ecological Society of America,
Ecology,
San Juan Mountains,
USA,
Access to Wyoming's Wildlife is a guide to the wildlife habitat management areas and public access areas throughout the state. The guide will tell you what facilities are available at each location, including facilities for the physically challenged, what kinds of fish and wildlife might be found, and what types of recreational activities are permissible. Access: http://wgfd.wyo.gov/web2011/wildlife-1000055.aspx
This map was developed to show the distribution of human influence in the western United States. This dataset was developed from the Human Footprint in the western United States (Leu et al. 2008) in order to ease the interpretation of human footprint comparisons.
Humans have dramatically altered wildlands in the western United States over the past 100 years by using these lands and the resources they provide. Anthropogenic changes to the landscape, such as urban expansion, construction of roads, power lines, and other networks and land uses necessary to maintain human populations influence the number and kinds of plants and wildlife that remain. We developed the map of the human footprint for the western United States from an analysis of 14 landscape structure and anthropogenic features: human habitation, interstate highways, federal and state highways, secondary roads, railroads, irrigation canals, power lines, linear feature densities, agricultural land, campgrounds, highway...
The Wyoming Landscape Conservation Initiative (WLCI) Boundary was buffered by 10 KM and intersected with the U.S. USGS 1:100,000 Topographic Quadrangle Series Index. The intersecting quadrangles were clipped, and then the quad boundary lines dissolved to form the Area of Interest for the WLCI.
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: boundary,
human,
other,
political
This EnviroAtlas dataset contains data on the mean livestock manure application to cultivated crop and hay/pasture lands by 12-digit Hydrologic Unit (HUC) in 2006 (EA_ManureMean attribute). Livestock manure inputs to cultivated crop and hay/pasture lands were estimated using county-level estimates of recoverable animal manure from confined feeding operations compiled for 2007. Recoverable manure is defined as manure that is collected, stored, and available for land application from confined feeding operations. County-scale data on livestock populations-needed to calculate manure inputs-were only available for the year 2007 from the USDA Census of Agriculture (http://www.agcensus.usda.gov/index.php). We acquired...
Plastics have transformed everyday life; usage is increasing and annual production is likely to exceed 300 million tonnes by 2010. In this concluding paper to the Theme Issue on Plastics, the Environment and Human Health, we synthesize current understanding of the benefits and concerns surrounding the use of plastics and look to future priorities, challenges and opportunities. It is evident that plastics bring many societal benefits and offer future technological and medical advances. However, concerns about usage and disposal are diverse and include accumulation of waste in landfills and in natural habitats, physical problems for wildlife resulting from ingestion or entanglement in plastic, the leaching of chemicals...
This paper presents a probabilistic exposure model and its adaptation for use with spatially explicit information: soil contaminant concentrations and pH levels, predicted by geostatistical simulation; and population data mapped according to place of residence. Sequential indicator simulation (SIS) is used to provide 1000 plausible maps of soil contaminant concentrations, and results are fed into the exposure model to produce risk maps. Distributions of exposure values are closely related to uncertainty in the soil contaminant values. Using a different support for the estimations has a large effect on the results when comparing exposure values to regulatory cut-offs. Mapping the number of overexposed people allows...
In this article, the Lovins'[2] explain what is meant by Natural Capitalism, four principles that enable business to behave responsibly towards both nature and people while increasing profits, inspiring their workforce and gaining competitive advantage. It combines radically increased resource productivity; closed-loop, zero-waste, nontoxic production; a business model that rewards both; and reinvestment in natural capital. The article describes how, even today, when nature and people are typically valued at zero, protecting and restoring nature, culture and community can be far more profitable than liquidating them.
Categories: Publication;
Types: Citation;
Tags: Case studies,
Natural,
Rio de la Plata,
basin,
change,
This model provides one view of ecological integrity for the ecoregion, based on a model of landscape condition, which has been summed into the 4x4km grid cells. Anthropogenic stressors come in many forms, from regional patterns of acid deposition or climate-induced ecosystem change, to local-scale patterns in agricultural drainage ditches and tiles, point-source pollution, land-conversion, and transportation corridors, among others. To be effective, a landscape condition model needs to incorporate multiple stressors, their varying individual intensities, the combined and cumulative effect of those stressors, and if possible, some measure of distance away from each stressor where negative effects remain likely....
Types: Downloadable;
Tags: BLM,
Bureau of Land Management,
CBR 2010,
Central Basin and Range,
Cultural Resources,
Implementing conservation in the face of unprecedented landscape change requires an understanding of processes and scales that limit wildlife populations. We assessed landscape-level processes influencing sage-grouse (Centrocercus urophasianus), to a migratory population in the Milk River Basin (MRB), northeast Montana, USA, and south-central Saskatchewan, Canada. A regional analysis of leks (e.g., communal breeding sites) documented that populations impacted by the increasing extent of agricultural tillage, roads, and energy development out to spatial scales larger than previously known. Using bird abundance as a novel way to evaluate human impacts revealed relationships that would have been missed had we not incorporated...
Categories: Publication;
Types: Citation;
Tags: Disease,
Population,
Sage-grouse,
conservation,
footprint,
This data was produced to examine the extent and location of human induced fires throughout the western United States. The National Fire Occurrence Database (1986-1996) and additional government agency fire occurrence databases were queried for human induced fires between 1986 and 2001.
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Arizona,
Burn,
California,
Colorado,
Fires,
Wyoming State Parks and the Division of Cultural Resources are hosting a sample of the collections maintained by our agency as part of the Western Trails Project sponsored by IMLS through the Colorado Digitization Project. All of the collections available are linked by a "trails" theme. Collections from the Wyoming State Archives, Museum, State Archeologist, State Parks, and State Historic Preservation Office are available. Each section has unique items, yet are all part of the documentation of Wyoming's history. Access: http://wyoshpo.state.wy.us/westerntrails/index.html
This dataset was clipped to the WLCI study area by USGS staff. This dataset contains information on the boundaries and quadrangle names of the 1:24,000-scale quadrangle series for Wyoming.
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: base,
human,
map,
other,
political
Climate and land-use change are major components of global environmental change with feedbacks between these components. The consequences of these interactions show that land use may exacerbate or alleviate climate change effects. Based on these findings it is important to use land-use scenarios that are consistent with the specific assumptions underlying climate-change scenarios. The Integrated Climate and Land-Use Scenarios (ICLUS) project developed land-use outputs that are based on a downscaled version of the Intergovernmental Panel on Climate Change (IPCC) Special Report on Emissions Scenarios (SRES) social, economic, and demographic storylines. ICLUS outputs are derived from a pair of models. A demographic...
Developed by the Oak Ridge National Laboratory (ORNL), the LandCast 2050 High-Resolution Population Projection models future national-level human population densities. The models estimate the probability of a population being at a particular location, which measures where people will likely be in the future, not necessarily their places of residence.The LandCast 2050 data set is an empirically-informed spatial distribution of projected population of the contiguous U.S. for 2050 compiled on a 30” x 30” latitude/longitude grid. Population projections of county level numbers were developed using a modified version of the U.S. Census’ projection methodology-with the U.S. Census’ official projection as the benchmark....
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: 2050,
Academics & scientific researchers,
AppLCC,
AppLCC,
Appalachian,
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