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There is a need to understand how alteration of physical processes on the Rio Grande River have impacted aquatic biota and their habitats, and a need to predict potential future effects of climate change on biotic resources in order to prescribe research and management activities that will enhance conservation of aquatic species. We propose a project with the goal of developing monitoring recommendations and identifying research needs for aquatic ecological resources in the Big Bend region of the Rio Grande. This goal will be targeted by synthesizing and analyzing available data and literature for aquatic species in the project region. In particular, we will work to develop time series of abundance and population...
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Album caption and index card: Summit of plateau of Santa Helena looking off to southeast. Canyon of Rio Grande, 1700 feet deep. Terlingua quadrangle, Brewster County, Texas. 1899.
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Comma-separated values (.csv) file containing data related to mercury concentrations in dragonfly samples from U.S. National Parks collected as part of the Dragonfly Mercury Project (DMP). First posted - September 14, 2018 Revised - October 18, 2019, ver. 2.0 Revised - February 4, 2020, ver. 3.0 Revised - October 28, 2020, ver. 4.0
Categories: Data; Tags: Acadia National Park, Allegheny Portage Railroad National Historic Site, Apostle Islands National Lakeshore, Appomattox Court House National Historical Park, Battle Creek Cypress Swamp, All tags...
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Mr. Hill's party leaving the canyons of the Rio Grande at Langtry, left to right: James MacMahon boatman, Robert T. Hill, Prentice B. Hill assistant, Shorty Franklin boatman, Henry J. Ware boatman and Serafino Torrez cook. Thus completing the first exploration of the Big Bend portion of the Rio Grande. Valverde County, Texas. October 28, 1899.
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Comma-separated values (.csv) files containing data related to a National-scale assessment of mercury bioaccumulation in the US National Parks using dragonfly larvae as biosentinels through a citizen science framework.
Categories: Data; Tags: Acadia National Park, Allegheny Portage Railroad National Historic Site, Apostle Islands National Lakeshore, Appomattox Court House National Historical Park, Aquatic Biology, All tags...
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These data are spatial polygon data and remote sensing image-based classification maps of surface water and vegetation species for 2012 along the Rio Grande River in Big Bend National Park in Texas. The geographic extent of the classification spans from the end of Mariscal Canyon to 5 km after the end of Boquillas Canyon, totaling approximately 77 Km of the river. The maps are also restricted to a digitized extent of riparian vegetation that is defined by the alluvial valley of the Rio Grande River. The 2012 classification maps are created using 20 cm multispectral (Near Infrared (NIR), Red and Green) imagery and LiDAR data collected in June 2012. The accuracy assessment for the classification product is based on...


map background search result map search result map Burro Mesa. Big Bend National Park, Texas. 1970. Tule Mountain and Burro Mesa. Big Bend National Park, Texas. 1970. Castolon Peak. Big Bend National Park, Texas. 1970. Croton Peak. Big Bend National Park, Texas. 1970. Rio Grande River, Sierra Ponce, Santa Elena Canyon, and Mesa de Anguila. Big Bend National Park, Texas. 1970. Laccolith at Fresno Canyon, north of Lajitas. Big Bend National Park, Texas. 1970. Mariscal Mountain. Big Bend National Park, Texas.1970. Rio Grande River and Sierra San Vicente. Big Bend National Park, Texas. 1970. Burro Mesa. Big Bend National Park, Texas. 1970. Santa Ana Mesa. Big Bend National Park, Texas. 1970. Mr. Hill's party leaving the canyons of the Rio Grande at Langtry. Valverde County, Texas. 1899. Summit of plateau of Santa Helena. Big Bend National Park, Texas. 1899. Grand Canyon de Santa Helena. Big Bend National Park, Texas. 1899. Carmen Canyon. Big Bend National Park, Texas. 1899. Ecological changes in aquatic communities in the Big Bend reach of the Rio Grande: Synthesis and future monitoring needs Rooney Camp and strata of Sierra San Vincente. Big Bend National Park, Texas. 1970. Total Mercury Concentrations in Dragonfly Larvae from U.S. National Parks Rio Grande 2012 Vegetation and Water Classification Data in the Big Bend Region Mercury Bioaccumulation in US National Parks Using Dragonfly Larvae as Biosentinels, 2009-2018 Burro Mesa. Big Bend National Park, Texas. 1970. Tule Mountain and Burro Mesa. Big Bend National Park, Texas. 1970. Castolon Peak. Big Bend National Park, Texas. 1970. Croton Peak. Big Bend National Park, Texas. 1970. Rio Grande River, Sierra Ponce, Santa Elena Canyon, and Mesa de Anguila. Big Bend National Park, Texas. 1970. Laccolith at Fresno Canyon, north of Lajitas. Big Bend National Park, Texas. 1970. Mariscal Mountain. Big Bend National Park, Texas.1970. Rio Grande River and Sierra San Vicente. Big Bend National Park, Texas. 1970. Burro Mesa. Big Bend National Park, Texas. 1970. Santa Ana Mesa. Big Bend National Park, Texas. 1970. Mr. Hill's party leaving the canyons of the Rio Grande at Langtry. Valverde County, Texas. 1899. Summit of plateau of Santa Helena. Big Bend National Park, Texas. 1899. Grand Canyon de Santa Helena. Big Bend National Park, Texas. 1899. Carmen Canyon. Big Bend National Park, Texas. 1899. Rooney Camp and strata of Sierra San Vincente. Big Bend National Park, Texas. 1970. Ecological changes in aquatic communities in the Big Bend reach of the Rio Grande: Synthesis and future monitoring needs Mercury Bioaccumulation in US National Parks Using Dragonfly Larvae as Biosentinels, 2009-2018 Total Mercury Concentrations in Dragonfly Larvae from U.S. National Parks