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Dataset contains the groundwater well locations and water-level measurements for 273 wells measured during a water-level survey of the Sparta-Memphis aquifer in Arkansas, January through June 2015. Well-location and water-level data is publicly available from the U.S. Geological Survey's National Water Information System.
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Karst hydrologic systems are important resources in the state of Tennessee both as drinking water resources and as centers for possible biological diversity. These systems are susceptible to contamination due to the inherent connectivity between surface water and groundwater systems in karst systems. A partnership between the U.S. Geological Survey (USGS) and Tennessee Department of Conservation (TDEC) was formed to investigate karst spring systems across the state utilizing fluorescent groundwater tracing, particularly in areas where these resources may be used as drinking water sources. In fall 2021, USGS and TDEC staff identified possible vulnerabilities or complexities that may exist within karst spring systems...
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Karst hydrologic systems are important resources in the state of Tennessee both as drinking water resources and as centers for possible biological diversity. These systems are susceptible to contamination due to the inherent connectivity between surface water and groundwater systems in karst systems. A partnership between the U.S. Geological Survey (USGS) and Tennessee Department of Conservation (TDEC) was formed to investigate karst spring systems across the state utilizing fluorescent groundwater tracing, particularly in areas where these resources may be used as drinking water sources. In fall 2021, USGS and TDEC staff identified possible vulnerabilities or complexities that may exist within karst spring systems...
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This dataset contains measures of seasonal mean bird stopover densities and in seasonal mean bird density based on weather surveillance radar data from 20 radar locations in the Northeast U.S. across seven autumn migrations (15 August through 7 November of 2008-2014) [six autumn migrations for the terminal doppler weather radar (15 August through 7 November of 2009-2014)]. Data are present only in radar-sampled areas for each individual radar (see below for description on how these data are filtered). If you are interested in a continuous map of bird stopover densities for the entire region (and outside of these radar coverage areas), refer to layer “Predicted autumn migratory landbird density, 1km, Northeast U.S.”.The...
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South of Interstate 40 mule deer reside in Game Management Units (GMU) 8 and 6B in Arizona. The herd summers in high-elevation open meadows and ponderosa pine habitat southwest of Flagstaff, Arizona. In late October, the herd migrates west to lower elevation pinyon-juniper and shrub habitats near the junction of Interstate 40 and U.S. Highway 89. With funding support by the U.S. Department of the Interior (USDI) through Secretarial Order 3362, research on this herd’s migration began in February 2020. Additional GPS collars were deployed in January 2022 with support from the U.S. Forest Service, Mule Deer Foundation, and other partners. Primary threats to the herd’s migration involve high volume roads including Interstate...
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The Siskiyou mule deer herd migrates from winter ranges primarily north and east of Mount Shasta (i.e., Day Bench, Lake Shastina, Montague, Mount Dome, Mount Hebron, Sheep-Mahogany Mountain, Tionesta, and Wild Horse Mountain) to sprawling summer ranges scattered between the Mount Shasta Wilderness in the west and the Burnt Lava Flow Geological Area in the east. A small percentage of the herd are residents, residing largely within winter ranges across the central and northeast areas of the herd’s annual distribution. The total population size of the Siskiyou herd is unknown, but adult deer densities averaged 6.01 deer per km2 on summer ranges in 2017 and 5.16 deer per km2 on winter ranges in 2019 (Wittmer and others,...
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Mule deer within the Jackson segment of the Sublette herd winter mainly in the valley and south-facing slopes of the buttes. These geologic features are characteristic of the Jackson Hole area near Jackson, Wyoming. Winter ranges in the Jackson valley are a mixture of national forest public land as well as private urban and exurban land. The lower elevation, south-facing hillslopes are typified by stands of Juniperus scopulorum (Rocky Mountain juniper) or mixed mountain shrub communities of Artemisia tridentata (mountain big sagebrush), Artemisia tripartite (three-tip sagebrush), Purshia tridentata (antelope bitterbrush), Amelanchier alnifolia (Saskatoon serviceberry), Symphoricarpos albus (common snowberry), chokecherry,...
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Chum salmon (Oncorhynchus keta) are the most abundant species of salmon spawning in the Yukon River drainage system, and they support important personal use, subsistence, and commercial fisheries. Chum salmon returning to the Tanana River in Interior Alaska are a significant contribution to the overall abundance of Yukon River chum salmon and an improved understanding of habitat use is needed to improve conservation of this important resource. We characterized spawning habitat of chum salmon using the mainstem Tanana River as part of a larger study to document spawning distributions and habitat use in this river. Areas of spawning activity were located using radiotelemetry and aerial helicopter surveys. At 11 spawning...


map background search result map search result map Characteristics of fall chum salmon spawning habitat on a mainstem river in Interior Alaska Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T3 from 1976 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P1 from 1977 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T2 from 1984 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P8 from 1988 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T2 from 1991 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T6 from 2000 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P2 from 2001 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T4 from 2006 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T6 from 2006 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands P1, T1, and T3 from 2009 Cottonwood Lake Study Area-Wetland Vegetation Zones-1986 Cottonwood Lake Study Area-Wetland Vegetation Zones-1990 Autumn migratory landbird stopover density radars, Northeast U.S. Sparta-Memphis aquifer well point dataset, in Arkansas, January-June 2015 Cowan, Tennessee Karst Groundwater Dye Tracing Water Year 2022 Woodbury, Tennessee Karst Groundwater Dye Tracing Water Year 2022 Arizona Mule Deer South of I 40 Stopovers California Mule Deer Siskiyou Routes Wyoming Mule Deer Jackson Routes Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T6 from 2000 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T3 from 1976 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T2 from 1991 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T2 from 1984 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T4 from 2006 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland T6 from 2006 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P8 from 1988 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P1 from 1977 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetland P2 from 2001 Digital Orthorectified Aerial Image of Cottonwood Lake Study Area Wetlands P1, T1, and T3 from 2009 Cottonwood Lake Study Area-Wetland Vegetation Zones-1986 Cottonwood Lake Study Area-Wetland Vegetation Zones-1990 Cowan, Tennessee Karst Groundwater Dye Tracing Water Year 2022 Woodbury, Tennessee Karst Groundwater Dye Tracing Water Year 2022 Wyoming Mule Deer Jackson Routes Arizona Mule Deer South of I 40 Stopovers California Mule Deer Siskiyou Routes Characteristics of fall chum salmon spawning habitat on a mainstem river in Interior Alaska Sparta-Memphis aquifer well point dataset, in Arkansas, January-June 2015 Autumn migratory landbird stopover density radars, Northeast U.S.