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Ducks Unlimited CPC (Conservation Program Committee) approved focus areas for conservation easements and land acquisitions within the Mississippi River Basin. These regions are very important to DU's habitat restoration and enhancement.Focus areas are designated by DU Board for acquiring conservation easements and land acquisitions without going through three board committees for approval. Only DU's internal board reviews any new easements or acquisitions in focus areas.
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Areas in which Ducks Unlimited wants to do the bulk of their conservation work - restorations, enhancements, and protection (acquisitions/easements) within the Mississippi River Basin. The data was last updated on May 10, 2013. The Platte River LCP boundary was changed to include Big Thompson Ponds SWA.
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Sum of all watershed-based (HU-8) implementation interests or priorities identified as of June 2016 within the Mississippi River Basin. These watersheds represent areas identified as a focus for investment to improve either water quality or aquatic habitat. Data was compiled from state, federal, regional, and non-governmental organizations including, but not limited to USDA-NRCS, USEPA, USFWS, Fish Habitat Partnerships, Gulf Hypoxia Task Force, and State Nutrient Reduction Strategies. Some HUC-12 priority watersheds were included as well, but coded to the HUC-8 level. Data from the Mississippi River Basin Initiative, National Water Quality Initiative and State Nutrient Reduction Strategies were updated in 2016.
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This digital version of the original vegetation cover map can be used to identify regional changes in land cover since the time when the state was first surveyed. This data is not intended for landscape-scale analysis.This is a polygon shapefile derived from a 1:500,000-scale map showing the original, pre-settlement vegetation cover in Wisconsin. The original vegetation cover data was digitized from a 1976 map created from land survey notes written in the mid-1800s when Wisconsin was first surveyed. Linework representing lakes and other hydrographic areas in other data sets were subsequently merged with the original vegetation cover data set to more closely match the source map.
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Forest restoration opportunities in large river bottomlands, Mississippi River Basin. NOTE: Floodplain coverage in Arkansas, Louisiana, Mississippi, and Missouri is incomplete due to only partial data availability as of October 2016.
In the western United States vast acreages of land are exposed to low levels of atmospheric nitrogen (N) deposition, with interspersed hotspots of elevated N deposition downwind of large, expanding metropolitan centers or large agricultural operations. Biological response studies in western North America demonstrate that some aquatic and terrestrial plant and microbial communities are significantly altered by N deposition. Greater plant productivity is counterbalanced by biotic community changes and deleterious effects on sensitive organisms (lichens and phytoplankton) that respond to low inputs of N (3 to 8 kilograms N per hectare per year). Streamwater nitrate concentrations are elevated in high-elevation catchments...
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Dissolved oxygen estimates were generated to help understand how different alternative management scenarios may affect the likelihood of low dissolved oxygen in Glen Canyon Dam releases. The study aimed to examine the effects of different management alternatives on late summer and early fall dissolved oxygen concentrations in Glen Canyon Dam releases. The estimates represent estimates of dissolved oxygen concentration in Glen Canyon Dam releases between August and October of a given year. These estimates were generated using data collected in Lake Powell reservoir as part of a long-term inter-agency water quality monitoring program conducted by the Bureau of Reclamation, the National Park Service, and the U.S. Geological...
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This data release includes data processing scripts, data products, and associated metadata for a study investigating trends in Mississippi River nitrogen and phosphorus loads to the Gulf of Mexico. This data release consists of three main components: 1) Nitrogen and phosphorus balances and accumulation, which account for major nutrient inputs (fertilizer, manure, waste water treatment facility effluent, atmospheric deposition, weathering and nitrogen fixation) and outputs (crop harvest and removal and gaseous emissions of nitrogen). Annual balances and total accumulation are estimated for the entire Mississippi River Basin, which covers 2,887,854 km2 for the time period from 1950 to 2017, 2) Weighted Regression...
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The Maumee River transports huge loads of nitrogen (N) and phosphorus (P) to Lake Erie. The increased concentrations of N and P are causing eutrophication of the lake, creating hypoxic zones, and contributing to phytoplankton blooms. It is hypothesized that the P loads are a major contributor to harmful algal blooms that occur in the western basin of Lake Erie, particularly in summer. The Maumee River has been identified by the United States Environmental Protection Agency as a priority watershed where action needs to be taken to reduce nutrient loads. This study quantified rates of biogeochemical processes affecting downstream flux of N and P by 1) measuring indices of potential sediment P retention and 2) measuring...
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Assessment of biogeochemical processes and transformations at the aquifer-estuary interface and measurement of the chemical flux from submarine groundwater discharge (SGD) zones to coastal water bodies are critical for evaluating ecosystem service, geochemical budgets, and eutrophication status. The U.S. Geological Survey and the University of Delaware measured rates of SGD and concentrations of dissolved constituents, including nitrogen species, from recirculating ultrasonic and manual seepage meters, and in nearshore groundwater, on the southern shore of Guinea Creek, an estuarine tributary of Rehoboth Bay, in Millsboro, Delaware, in June, August, and October of 2015. A novel oxygen- and light-regulated seepage...
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Nutrient limitation tests were performed with a laboratory bioassay that uses a macrophyte, Lemna minor L. (duckweed) and attached epiphytes to characterize the status of ambient and nutrient-enriched waters. In summary, we measured morphological (number of fronds, longest surface axis, root length) and population-level (number of plants, dry mass) responses of L. minor, and community-level (ash free dry mass [AFDM] and chlorophyll a [chl a]) responses of epiphytes to nutrient enrichment. About 90L of water were collected on 23April2008 from streams expected to have low with low nitrogen (N) and low phosphorus (P) (Big Cottonwood and Stalker Creeks, respectively) and were transported to the Stream Ecology Center...
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Data layers portraying hydrogeomorphic evaluation of ecosystem restoration options for the Lower Missouri River Floodplain. Further information can be obtained at: http://www.fws.gov/midwest/planning/currentplans.html
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This dataset displays polygon data for Corridors and Key Habitat Areas in the United States.-Key Migration Corridors where bird risk will differ from season to season, and may also differ from year to year among specific locations within the corridor.-Key Habitat Areas for birds on the Red WatchList (plus both widespread eagle species, and Ferruginous Hawk), where the species may not be present year round. Birds are likely to be most at risk from wind development where their optimal habitat is found within the tinted area.
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Estimated number of breeding pairs of Grasshopper sparrow 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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Predictions of the number of upland nesting duck pairs (mallards, blue-winged teal, gadwall, northern pintail, and northern shoveler) that could potentially nest in the upland habitats of every 40 acre block of the Prairie Pothole Region (PPR). These predictions are based on the known maximum travel distances of hens from wetlands to their nest sites, and regressions (statistical models) created from 4 square mile survey data predicting the number of duck pairs that utilize every individual wetland in PPR during a “typical” breeding season. GRID CODE = Number of Duck Pairs: 1 = 0-10; 2 = 11-20; 3 = 21-40; 4 = 41-60; 5 = 61-80; 6 = 81-100; 7 = >100.
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NRCS Common Resource Areas (CRA), version 1.2. A Common Resource Area is defined as a geographical area where resource concerns, problems, or treatment needs are similar. It is considered a subdivision of an existing Major Land Resource Area (MLRA) map delineation or polygon. Landscape conditions, soil, climate, human considerations, and other natural resource information are used to determine the geographic boundaries of a CRA. Features have been conflated with land cover attributes pertinent to the MRB/GHI e.g. cropland, forest, prairie, etc.
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The Greater Sage Grouse Focal Area represents an area of interest pertaining to the greater sage grouse under the U.S. Department of Agriculture (USDA), Natural Resources Conservation Service (NRCS) Working Lands for Wildlife (WLFW) Wildlife Habitat Incentive Program (WHIP).Working Lands for Wildlife is a partnership between NRCS and the U.S. Fish and Wildlife Service (FWS) to use agency technical expertise and financial assistance from the Wildlife Habitat Incentive Program to combat the decline of seven specific wildlife species whose decline can be reversed and will benefit other species with similar habitat needs. The WLFW project will target species whose decline can be reversed and will benefit other species...
map background search result map search result map Common Resource Areas (MRB) Major River (ERF1v2) - Mississippi River Basin Greater Sage Grouse Focal Area (WLFW) Ducks Unlimited - Land Acquisition/Easement Focus Areas Ducks Unlimited - Landscape Conservation Priority Areas Missouri - Quail Focus Areas Wisconsin - Original Vegetation HAPET - Breeding Duck Pairs (PPJV) HAPET Breeding Pairs - Grasshopper sparrow Lower Missouri River - Potential Natural Vegetation Sum - Watershed Implementation Interests (2016) American Bird Conservancy - Corridors and Key Bird Habitat Areas (MRB) Conservation Estate - Mississippi River Basin (2016) Large River Bottomland Forest Restoration Opportunities 2. Duckweed and epiphyte growth stimulation testing Nearshore groundwater seepage and geochemical data measured in 2015 at Guinea Creek, Rehoboth Bay, Delaware Great Lakes Restoration Initiative: Nutrient cycling in riverbed sediment in the Maumee River Basin, 2019 and 2021 Data (ver. 2.0, March 2024) Nutrient balances, river loads, and a counterfactual analysis to determine drivers of Mississippi River nitrogen and phosphorus loads from 1975 to 2017 Dissolved oxygen predictions for releases from Lake Powell under different management scenarios for Lake Powell releases Nearshore groundwater seepage and geochemical data measured in 2015 at Guinea Creek, Rehoboth Bay, Delaware 2. Duckweed and epiphyte growth stimulation testing Great Lakes Restoration Initiative: Nutrient cycling in riverbed sediment in the Maumee River Basin, 2019 and 2021 Data (ver. 2.0, March 2024) Dissolved oxygen predictions for releases from Lake Powell under different management scenarios for Lake Powell releases Missouri - Quail Focus Areas Wisconsin - Original Vegetation Lower Missouri River - Potential Natural Vegetation HAPET Breeding Pairs - Grasshopper sparrow Greater Sage Grouse Focal Area (WLFW) Ducks Unlimited - Land Acquisition/Easement Focus Areas Major River (ERF1v2) - Mississippi River Basin Common Resource Areas (MRB) Sum - Watershed Implementation Interests (2016) HAPET - Breeding Duck Pairs (PPJV) Large River Bottomland Forest Restoration Opportunities Conservation Estate - Mississippi River Basin (2016) Ducks Unlimited - Landscape Conservation Priority Areas American Bird Conservancy - Corridors and Key Bird Habitat Areas (MRB)