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This study evaluated the relations between algal, invertebrate, and fish assemblages and physical environmental characteristics of streams at the reach, segment, and watershed scale in agricultural settings in the Midwest. The 86 stream sites selected for study were in predominantly agricultural watersheds sampled as part of the U.S. Geological Survey's National Water-Quality Assessment Program. Species abundance and over 130 biological metrics were used to determine which aspects of the assemblages were most sensitive to change at the three spatial scales. Digital orthophotograph-based riparian land use/land cover was used for analyses of riparian conditions at the reach and segment scales. The percentage area...
The Illinois Water-Quality Information Mapping Tool provides access to water-quality information collected and distributed by the Illinois EPA. This information fulfills requirements identified in the Federal Clean Water Act. Users of the Mapping Tool can locate, create, and print maps of any area within Illinois providing lake and stream information as well as geographic reference information (streets, towns, highways, etc). This site was developed through a cooperative effort between Illinois EPA and the United States Geological Survey (USGS).
NEED FOR STUDY: Water-resource planning and water-quality assessment require a nationwide data base with standardized information. Sediment concentrations and discharges in rivers and streams need to be monitored and defined to achieve this goal. OBJECTIVES: To provide a national sediment data base for use in Federal programs and Federal management of interstate waters. The State also needs spatial and temporal averages and trends of sediment concentration, sediment discharge, and particle-size distribution of sediment being transported in the rivers and streams for planning and action programs.
Concentrations, spatial and temporal variations, and fluxes of nitrogen, phosphorus, and suspended sediment were determined for 16 streams in the Illinois River basin, Illinois from October 1996 through September 2000. Water samples were collected through the National Water-Quality Assessment's Lower Illinois River Basin (LIRB) and Upper Illinois River Basin (UIRB) Study Units on a monthly to weekly frequency from watersheds representing predominantly agricultural and urban land, as well as areas of mixed land-use. Streams in agricultural watersheds had high concentrations and fluxes of nitrate nitrogen, whereas streams in predominantly urban watersheds had high concentrations (above background levels) of ammonia...
The composition, distribution and abundance of 74 taxa of benthic invertebrates collected from snags and woody debris at sites in the Wapsipinicon, Cedar, Iowa and Skunk River basins were used to assess the effects of intensive agriculture in the Eastern Iowa Basins study unit of the NAWQA Program. Two-way indicator species analysis was used to define four groups of sites based upon the distribution and abundance of taxa; detrended correspondence analysis was used to identify relations in the structure of the invertebrate assemblages and the correspondence of taxa and sites in the groups to physical and chemical gradients using habitat, hydrologic and water-quality data. Responses of these assemblages were evaluated...
NEED FOR STUDY: Streamflow supplies water for many uses, including domestic, commercial, and industrial uses; irrigation of crops; dilution and transport for removal of wastes; hydroelectric power generation; commercial transport; and recreation. Streamflow records are used to develop reliable surface-water supplies because they provide information on the availability and variability of streamflow. Excessive streamflow, or flooding can cause extensive damage and hardship. Records of floods obtained at streamflow-gaging stations serve as the basis for the design of bridges, culverts, dams, and flood-warning systems. Streamflow records are used in the planning and design of surface-water related projects and in the...
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Understanding freshwater flow is frequently highlighted as a priority in land management planning and assessments. Changes in climate can impact streamflow through reduced snowpack and snowfall, earlier spring runoff, increased winter flow and flooding, and decreased summer flow. In Southeast Alaska, streamflow is expected to shift dramatically in response to changes in factors such as precipitation and air temperature. Understanding how streamflow might change is instrumental not only for predicting changes in plant distribution and soil moisture, but also for infrastructure planning. Culvert replacement, bridge design, hydropower development, water reservoir placement, and floodplain restoration planning all require...
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The Republic of the Marshall Islands (RMI) is a sovereign Small Island State in the tropical central North Pacific Ocean. RMI is a nation of more than thirty low-lying atolls and islands, most of which are inhabited, dispersed across an EEZ over 2 million square kilometers. Multiple hazards such as coastal flooding, wave overwash, and drought threaten freshwater and food security of the communities. In the atolls, vegetation consists of agroforest, coconut plantation, and coastal species. Because islands/ islets are small and low-lying, all vegetation is vulnerable to the hazards. Current drought hazard products provide generalities regarding conditions on a broad geographic scale, but do not consider exposure of...
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This is the primary output dataset from the project to access the potential impacts of climate change on vegetation management strategies within Hawaii Volcanoes National Park (HAVO). The key objective of this project was to combine climate projections from the International Pacific Research Center (IPRC) and plant distribution models from Price et al. to produce a series of projected species range maps over the next century. Although the project focused on HAVO, the projected species range maps were created for seven of the main Hawaiian Islands. We stored the model output as rasters (.TIF files); additionally we created multi-panel maps of these rasters that are available separately. In summary, this dataset consists...
This report presents the results of a study by the U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, to analyze and compare hydrologic and water-quality characteristics of tallgrass prairie and agricultural basins located within the historical distribution of tallgrass prairie in Missouri and Kansas. Streamflow and water-quality data from two remnant, tallgrass prairie basins (East Drywood Creek at Prairie State Park, Missouri, and Kings Creek near Manhattan, Kansas) were compared to similar data from agricultural basins in Missouri and Kansas. Prairie streams, especially Kings Creek in eastern Kansas, received a higher percentage of base flow and a lower percentage of direct...
Nile monitors (Varanus niloticus), a large carnivorous lizard, are established in the C-51 Basin in Palm Beach County in close proximity to the Artur R. Marshall Loxahatchee National Wildlife Refuge (Lox NWR, Figure 1). They were first sighted in 2007 and breeding was confirmed in 2011 (Ketterlin-Eckles et al. 2017). They have been confirmed as far east as I-95 along the C-51 and west to within 2 kilometers of Stormwater Treatment Area (STA) 1E. Nile Monitors are semi-aquatic habitat generalists and in their native range of sub-Saharan Africa are found in both freshwater and estuaries. In Florida, they are most often found along networks of vegetated canal banks. They are diet generalists consuming invertebrates,...
Categories: Project; Tags: 2019, LCC, SSP-QR FWSR4


map background search result map search result map Projected species range maps over the next century Projecting Future Streamflow in Southeast Alaska Republic of Marshall Islands Precipitation and Vegetation Monitoring Projected species range maps over the next century Republic of Marshall Islands Precipitation and Vegetation Monitoring Projecting Future Streamflow in Southeast Alaska