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The importance of riparian ecosystems in semiarid and arid regions has generated interest in understanding processes that drive the distribution and abundance of dominant riparian plants. Changes in streamflow patterns downstream of dams have profoundly affected riparian vegetation composition and structure. For example, in the southwestern United States, flow regulation has contributed to the replacement of many riparian forests historically dominated by the native Populus fremontii (Fremont Cottonwood) and Salix gooddingii (Goodding’s Willow) by the exotic species Tamarix spp. (Salt Cedar). The proposed project will help guide reservoir release decision making to enhance downstream recruitment of native cottonwood...
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The Rainwater Basin in south-central Nebraska includes a complex of seasonally shallow playa wetlands that attract millions of migratory waterfowl as well as other waterbirds, including the federally and state listed endangered whooping crane. The Light Detection And Ranging (LiDAR) data provide the robust capability of capturing small variations in low-relief playa wetlands. The main objective of this project is to build LiDAR-derived 3-D geospatial models to statistically assess the effectiveness of grass plantings and buffers on playa natural inundation and sedimentation control at watershed scales in the Rainwater Basin. The anticipated products include: (1) A set of statistical models to correlate grass plantings/buffers...
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This project will develop a principle method for the estimation of monarch butterfly colony sizes as informed by technological innovations derived from (1) LiDAR, (2) object-driven, quantitative 3D modeling, (3) thermography and associated visualization and analytical capabilities and; establish the foundation of a science communication and public education strategy for USFWS to increase awareness and support for science-based approaches to Monarch conservation.
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In response to the rapid and dramatic hydroecological deterioration of the Rio Grande through Big Bend, the Big Bend Conservation Cooperative (BBCC), a multi-disciplinary group of natural resource agencies, research institutions, and conservation organizations have been organizing and implementing a wide range of river rehabilitation, scientific research activities and climate change initiatives. More recently, the Basin and Bay Expert Science Team, part of an environmental flows initiative by the state of Texas, is using best available science to recommend environmental flow regimes for the major rivers of Texas. Limited understating of the sediment dynamics of the Rio Grande and riparian vegetation change hinders...
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The USGS St. Petersburg Coastal and Marine Science Center (USGS St. Pete) processed lidar topographic data in Alaska. Raw lidar data are not in a format that is generally usable by resource managers and scientists for scientific analysis. Converting dense lidar elevation data into a readily usable format without loss of essential information requires specialized processing. Project included processing of lidar data acquired in Summer 2010 along the North Slope of Alaska between Colville River and Hulahula River.
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Over the last 3 years, high-resolution LiDAR elevation data has been acquired for much of the northern coast of Alaska in support of the USGS Coastal and Marine Geology Program’s National Assessment of Shoreline Change project. Because of funding limitations, LiDAR data were not collected over most river deltas and embayments. Subsequent discussions with scientists and managers from both public agencies and private organizations indicated a need and desire to fill the gaps in the coastal elevation data set, specifically over the low-lying deltas and estuaries that provide important habitat for migratory birds and other wildlife. The Arctic LCC provided support to help cover costs associated with acquiring and processing...


    map background search result map search result map Use of LIDAR to Assess the Effectiveness of Grass Plantings and Buffers on Playa Natural Inundation and Sedimentation Control in the Rainwater Basin Managing water and riparian habitats on the Bill Williams River with scientific benefit for other desert river systems Remote Acquisition of High Quality Topography (LIDAR) and Multispectral Imagery Data for the Rio Grande through the Big Bend National Park: A Critical Need for Climate Change Mitigation Planning North Slope Alaska Admiralty Bay LiDAR Alaska LiDAR Data Processing - Colville to Staines River Counting Butterfies: Using Lidar to Count Monarchs Remote Acquisition of High Quality Topography (LIDAR) and Multispectral Imagery Data for the Rio Grande through the Big Bend National Park: A Critical Need for Climate Change Mitigation Planning Managing water and riparian habitats on the Bill Williams River with scientific benefit for other desert river systems Use of LIDAR to Assess the Effectiveness of Grass Plantings and Buffers on Playa Natural Inundation and Sedimentation Control in the Rainwater Basin North Slope Alaska Admiralty Bay LiDAR Alaska LiDAR Data Processing - Colville to Staines River Counting Butterfies: Using Lidar to Count Monarchs