Search datasets
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The dataset consists of abundance information of butterfly species (61 species) collected at 25 sites in northwest Indiana in 1998 and 1999. Each site was surveyed 21 times. Auxiliary data on...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: September 10, 2026 at 10:47 PM -
This geodatabase includes spatial datasets that represent the Cambrian-Ordovician aquifer system in the States of Wisconsin, Michigan, Minnesota, Iowa, and Illinois. Included are: (1) a...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: October 14, 2026 at 05:44 AM -
Nitrogen and phosphorus losses from agricultural areas have impacted the water quality of downstream rivers, lakes, and oceans. As a result, investment in the adoption of agricultural best...
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This data release contains the calibration data set and R code used to create regression models for estimating daily loads of suspended sediment, total nitrogen, and total phosphorus at the...
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In 2013, the first of several Regional Stream Quality Assessments (RSQA) was done in the Midwest United States. The Midwest Stream Quality Assessment (MSQA) was a collaborative study by the U.S....
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 10:10 PM -
This geospatial dataset represents a prototype of a finer-scale representation of the principal aquifers of the United States, using four original principal aquifers in the Upper Midwest, United...
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The data set consists of continuous water-quality data (temperature, specific conductance, pH, dissolved oxygen, turbidity, nitrate plus nitrite, and streamflow) from in-situ equipment and...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 09:19 PM -
These ESRI shape files are of National Park Service tract and boundary data that was created by the Land Resources Division. Tracts are numbered and created by the regional cartographic staff at...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 07:22 PM -
In 2013, the first of several Regional Stream Quality Assessments (RSQA) was done in the Midwest United States. The Midwest Stream Quality Assessment (MSQA) was a collaborative study by the U.S....
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 10:49 PM -
The Marshall aquifer underlies much of the Lower Peninsula of Michigan and has a maximum thickness of 493 feet (Lampe, 2009). The aquifer consists mainly of medium-grained sandstone and is...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 07:52 PM -
Delivery of program services to the federally recognized tribes and individual Indians and Alaska Natives, whether directly or through contracts, grants or compacts, is administered by the twelve...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 07:18 PM -
The primary data sets consist of loads (with upper 95-percent prediction interval, and lower 95-percent prediction interval) of suspended sediment, total nitrogen, and total phosphorus calculated...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 10:20 PM -
This dataset captures in digital form previously published maps showing the inferred extent and subsurface elevation of several Paleozoic consolidated rock units in the northern Midwest of the...
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Fire effects monitoring data collected at Sleeping Bear Dunes National Lakeshore (SLBE) in Empire, MI. Data were collected during summer field seasons by the fire effects monitoring crews out from...
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These ESRI file geodatabases contain authoritative National Park Service tract and boundary geospatial data produced by the Land Resources Division. Regional cartographic staff at the Land...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 12, 2026 at 07:45 PM -
This release covers the entire study region (Midwest) and includes data used for retrospective population modeling effort as well as climate projection data for each county on the summer breeding...
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Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 08:31 PM -
The primary data set consists of continuous water-quality data (temperature, specific conductance, pH, dissolved oxygen, turbidity, nitrate plus nitrite, and streamflow) from in-situ equipment,...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 09:56 PM -
Fire effects monitoring data collected at Buffalo National River in Arkansas. The data were collected during summer field seasons by the fire effects monitoring crew out of Ozark National Scenic...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 07:13 PM -
Fire effects monitoring data collected at St. Croix National Scenic Riverway (SACN) (St. Croix Falls, WI). Data were collected during summer field seasons by the fire effects monitoring crews from...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 07:21 PM
