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Katahdin Woods and Waters National Monument TFG Unit Vegetation Mapping Project Katahdin Woods and Waters National Monument TFG Unit Vegetation Mapping Project
The Katahdin Woods and Waters (KAWW) National Monument TFG Unit Vegetation Mapping Project was initiated in the fall of 2022 by a grant through the USGS Natural Resource Preservation Program (NRPP) to classify and map vegetation types of the TFG Unit, thereby providing resource managers and biological researchers with useful baseline vegetation information. These data provide the...
USGS Archive of Computed tomography (CT) Scans of Coral Cores USGS Archive of Computed tomography (CT) Scans of Coral Cores
This data release presents computed tomography (CT) imagery generated from coral core samples curated within the U.S. Geological Survey (USGS) Coral-Core Archive. These data were collected as part of ongoing USGS coral-reef research activities and include samples originating from multiple locations and collection efforts. A Geotek Rotating X-ray CT (RXCT) system was used to acquire x-ray...
Ponderosa Pine Regeneration and Plant Community Composition in High Severity Reburn Patches of Arizona's Colorado Plateau Ponderosa Pine Regeneration and Plant Community Composition in High Severity Reburn Patches of Arizona's Colorado Plateau
The area burned in high severity fire as well as the proportion of fires burning at high severity have been increasing in southwestern ponderosa pine (Pinus ponderosa) forests since the 1980s, with over 100,000 hectares burning in many recent years and many fires burning at over 40% moderate to high severity. These fires often contain large patches (>100 ha) of 100% tree mortality. This...
Major, Minor, and Trace Element Results from Sequential Extractions of Sediment Cores Collected from the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota, 2014 to 2019 Major, Minor, and Trace Element Results from Sequential Extractions of Sediment Cores Collected from the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota, 2014 to 2019
This U.S. Geological Survey (USGS) Data Release contains chemical analysis information on sediment core and oil samples collected at the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota, USA. Following a crude-oil spill in 1979, biodegradation of petroleum hydrocarbons in the contaminated aquifer has formed distinct zones of pH and/or redox...
Multiple Thermal Metrics of Four Notropis Species in Missouri (2022-2024) Multiple Thermal Metrics of Four Notropis Species in Missouri (2022-2024)
We estimated thermal preference, acclimated chronic exposure, metabolic thermal optima, and critical thermal maximum for four species in the Notropis genus during 2022-2024. Thermal preference was estimated for Blacknose Shiner (Notropis heterolepis) and Ozark Shiner (N. ozarcanus) for individuals acclimated at both 22°C and 26°C for a minimum of two weeks using a behavioral shuttlebox...
Forest Canopy Gap Data Products: Mississippi & Illinois Rivers (partial coverage) Forest Canopy Gap Data Products: Mississippi & Illinois Rivers (partial coverage)
As part of Upper Mississippi River Restoration (UMRR) Program, the U.S. Army Corps of Engineers (USACE) is conducting a study to understand what environmental factors are contributing to the failure of floodplain forests to regenerate. Broken Forest Canopy Identified by Lidar data sets: As part of Upper Mississippi River Restoration (UMRR), the U.S. Army Corps of Engineers (USACE) is...