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Estimated number of breeding pairs of Dickcissel based on the amount of grass, trees, and/or hay in the landscape. Landscape scale varied from 1/4- to 2-mile radius depending on the species. Pair estimates were calculated for grass patches >=1 ha, extrapolated to 40-ac cells, then smoothed by averaging over a 1-mile radius. Models were based on point count surveys conducted in 2003-2005 throughout the Tallgrass Prairie Pothole Region. Point count locations were stratified by cover type, the amount of grass in the landscape, and USFWS Wetland Management District boundaries. Landcover data were derived from 2000 Thematic Mapper imagery. Grid values = number of breeding pairs per 30-m pixel.
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For the Green River Basin Landscape Conservation Design (GRB LCD) assessment, we mapped the vulnerability of occupied Colorado River cutthroat trout (Oncorhynchus clarkii pleuriticus) habitat to climate change for each 12-digit hydrologic unit. Cutthroat trout occupied habitat was mapped from the range-wide status report (Hirsch et. al 2013). Using a vulnerability framework, we defined Sensitivity (S) as the total length of occupied cutthroat trout habitat within HUC12 polygons. The exposure parameter incorporates two climate change metrics, the change in flow timing and change in stream temperature. Exposure is quantified as the square root transformed product of the two climate change metrics. Potential Impact...
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Areas identified in the Minnesota Pheasant Action Plan to target habitat enhancement and protection in complexes at least 9 square miles in size where a goal of 40 percent permanent protection can be met within the timeframe of the plan. The complexes identify the best places for pheasant production and focused protection efforts on those areas to create permanent habitat complexes. Ranking of the complexes was based on current conditions. For instance, if a complex is at 38% permanent protection, it scores very high since with only a little effort 40% protection can be achieved, conversely. A place that was 20% scored low. The complexes identify the best places for pheasant production and focused protection efforts...
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This dataset is made up of features aggregated from Ecoregional Assessments as well as other planning methodologies used across The Nature Conservancy to identify areas of biodiversity significance and prioritize conservation action. More information about ecoregional assesments and other conservation planning methodologies is available at The Nature Conservancy's Conservation Gateway, the Ecoregional Assessment Status Tool (EAST), and at http://maps.tnc.org. This dataset provides a vision for conservation success for ecological systems, natural communities and species representative of an ecoregion by showing the boundaries of areas that The Nature Conservancy has prioritized for conservation within the Mississippi...
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Conservation priorities have been identified for each river basin at the cataloging unit or stream reach scale and were categorized using two tiers to indicate relative importance when considering the limited resources available for conservation initiatives. The recommendations were developed by Commission biologists through review of their field data as well as data from several agencies and research organizations. The review considered a combination of factors such as the presence of federal- or state-listed species; distribution of priority species; high species diversity; unique habitats, or high-quality habitats in the subbasin; and the importance of the watershed to downstream populations. Priority areas identified...
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Mississippi River Basin Gridded SSURGO mapunits where "pwsl1pomu" (wetland potential) is at least 60 or at least 50 and "drclassdcd" (Drainage Class - Dominant Condition) is poorly or very poorly drained. These mapunits represent those with the highest wetland potential based on these criteria.
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Potential yields and harvested area, by county, within the Mississippi River Basin, of switchgrass planted for biofuel in the year 2030 from the USDOE Billion Ton Update baseline scenario at a farmgate price of $60/dry ton or less. Source: USDOE Billion Ton Update, Scenario: BLY+EC1_BLT (Baseline Yield with 1% Increase in Energy Crops); Year: 2030.
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These datasets represent model results from Rabotyagov et. al. 2014. Cost-effective targeting of conservation investments to reduce the northern Gulf of Mexico hypoxic zone. Proceedings of the National Academy of Sciences. 111 (52): 18530-18535. The authors developed an integrated assessment model linking the water quality effects of cropland conservation investment decisions on the more than 550 agricultural subwatersheds that deliver nutrients into the Gulf of Mexico with a hypoxic zone model. The model was used to identify the most cost-effective subwatersheds to target for cropland conservation investments. The 60% reduction [60PCT] model could cost-effectively reduce the area of the hypoxic zone to 5,000 km2,...
map background search result map search result map UMRGL JV Grassland Bird Habitat Data UMRGLR JV - Woodland Breeding Bird Habitat Priorities Gridded SSURGO - Highest Potential for Wet Soil HAPET Breeding Pairs - Dickcissel Gulf Hypoxia Solution Maps Biofuel Switchgrass Potential - 2030 (MRB) Historic Land Cover (IA/IL/MN/MO/OH/WI) American Bird Conservancy - ESA Critical Bird Habitat (MRB) Minnesota Pheasant Action Plan - Habitat Complexes North Carolina SWAP Priority Watersheds (MRB HUC-12) Nature Conservancy - Ecoregional Rollup (MRB) Yazoo River Basin (HU4-0803) - Riparian Implementation Opportunities (2017) Boeuf-Tensas River Basin (HU4-0805) - Riparian Implementation Opportunities (2017) Vulnerability of Colorado River Cutthroat Trout Habitat to Climate Change in the Green River Basin North Carolina SWAP Priority Watersheds (MRB HUC-12) Minnesota Pheasant Action Plan - Habitat Complexes Vulnerability of Colorado River Cutthroat Trout Habitat to Climate Change in the Green River Basin HAPET Breeding Pairs - Dickcissel UMRGLR JV - Woodland Breeding Bird Habitat Priorities Historic Land Cover (IA/IL/MN/MO/OH/WI) UMRGL JV Grassland Bird Habitat Data American Bird Conservancy - ESA Critical Bird Habitat (MRB) Gulf Hypoxia Solution Maps Gridded SSURGO - Highest Potential for Wet Soil Yazoo River Basin (HU4-0803) - Riparian Implementation Opportunities (2017) Boeuf-Tensas River Basin (HU4-0805) - Riparian Implementation Opportunities (2017) Biofuel Switchgrass Potential - 2030 (MRB) Nature Conservancy - Ecoregional Rollup (MRB)