Ernie Valdez, USGS Fort Collins Science Center, examines a bat caught over the mine detention pond.
Keith Grabner
Keith is an Ecologist at the Columbia Environmental Research Center.
Education and Certifications
M.S. Forestry, University of Missouri, 1996
B.S. Forestry, University of Maine, 1992
Science and Products
Pickle Pond pre-restoration orthomosaic and elevation products, Superior, Wisconsin, September 2022 Pickle Pond pre-restoration orthomosaic and elevation products, Superior, Wisconsin, September 2022
The orthomosaic, digital surface model and point cloud presented here document conditions at Pickle Pond in Superior, Wisconsin in September 2022, prior to planned ecological restoration. Images were collected using a 3D Robotics Solo aircraft with GNSS GPS upgrade, Mission Planner software, and a Pentax Ricoh GRII 3-band digital camera sensor. Imagery acquisition flights were...
Otter Creek pre-restoration orthomosaic and elevation products, Toledo, Ohio, September 2022 Otter Creek pre-restoration orthomosaic and elevation products, Toledo, Ohio, September 2022
The orthomosaic, digital surface model and point cloud presented here document conditions at Otter Creek in Toledo, Ohio in September 2022, prior to planned ecological restoration. Images were collected using a 3D Robotics Solo aircraft with GNSS GPS upgrade, Mission Planner software, and a Pentax Ricoh GRII 3-band digital camera sensor. Imagery acquisition flights were approximately 400...
Swan Lake National Wildlife Refuge pre-restoration orthoimagery and elevation products, spring 2025 Swan Lake National Wildlife Refuge pre-restoration orthoimagery and elevation products, spring 2025
The products presented here document conditions at the Swan Lake National Wildlife Refuge, Missouri from March to May, 2025. Imagery was collected to document conditions at areas in the north (“N_wetlands”) and east (“E_wetlands”) portions of the refuge prior to restoration to modify hydrology and habitat and improve future management capabilities. Imagery also captured a section of...
Orthoimagery, digital surface model, and point cloud for the Big Bend restoration site, West Jordan Utah, January, 2022 Orthoimagery, digital surface model, and point cloud for the Big Bend restoration site, West Jordan Utah, January, 2022
The products presented here document conditions at the Big Bend restoration site on the Jordan River, West Jordan, Utah in January, 2022. Multiband imagery was collected shortly after the initiation of restoration actions. Images were collected using a 3DR Solo unoccupied aerial system (UAS) at a height approximately 400 feet above the surface of the Jordan River flood plain using a...
Little Saint Francis River chat pile orthoimagery and elevation products, Missouri, July 2019 Little Saint Francis River chat pile orthoimagery and elevation products, Missouri, July 2019
The products presented here document conditions at the Little Saint Francis River chat pile restoration site near Fredericktown, Missouri in July 2019. Imagery was collected shortly after the initiation of restoration actions. Images were collected using low-altitude flights of unoccupied aerial systems (UAS, or “drones”) and processed using structure-from-motion techniques to generate...
Toxicity data for the evaluation of Ziram to Grass Carp Ctenopharyngodon idella in a laboratory setting Toxicity data for the evaluation of Ziram to Grass Carp Ctenopharyngodon idella in a laboratory setting
Data consists of dose, dose method, solvent, weight, length and survival of test species from bioassays following an Up-and-Down method conducted with Ziram.
NE Indiana bottomland restoration vegetation, soils and carbon data, 2015 and 2016 NE Indiana bottomland restoration vegetation, soils and carbon data, 2015 and 2016
This data set includes tables providing location, environmental, vegetation, soils, and carbon sampling data collected in 2015 and 2016 at vegetation sampling units on restored areas and other habitats at sites in northeast Indiana, USA. "Sample_units.txt" provides location, environmental, soil physical and chemical properties for each sample location. "Subplot_ground_flora.txt" provides...
Bat at Mine Detention Pond
Ernie Valdez, USGS Fort Collins Science Center, examines a bat caught over the mine detention pond.
Filter Total Items: 16
Restoration monitoring metric framework: Integrating innovative remote-sensing technologies: Comparisons between field and remotely sensed vegetation surveys of restored forested and grassland sites in Ohio Restoration monitoring metric framework: Integrating innovative remote-sensing technologies: Comparisons between field and remotely sensed vegetation surveys of restored forested and grassland sites in Ohio
Restoration monitoring is generally perceived as costly and time-consuming, yet the concept of universal restoration monitoring metrics is trending for evaluation of restoration performance across spatial scales, project boundaries, and jurisdictions. Natural Resource Damage Assessment and Restoration (NRDAR) practitioners seek to restore natural resources injured by oil spills or...
Authors
Heather Theel, Molly Reif, Safra Altman, Christina Saltus, Nathan Beane, Samuel Jackson, Scott Bourne, Jennifer Laird, Shea Hammond, Kenneth Matheson, Thomas Berry, Jo Hinck, Keith Grabner, Esther D. Stroh, Robin L. Tillitt, Kristin Skrabis
Studies to assess natural resource recovery and evaluate monitoring methods for restored bottomland hardwood forests Studies to assess natural resource recovery and evaluate monitoring methods for restored bottomland hardwood forests
The Natural Resource Damage Assessment and Restoration process assesses natural resource injury due to oil or chemical spills and calculates the damages to compensate the public for those injuries. Ecological restoration provides a means for recovering resources injured or lost due to contamination from oil or chemical spills by restoring the injured site after remediation, or acquiring...
Authors
Michael Hooper, Matthew Struckhoff, John Isanhart, Janice Albers, Keith Grabner, Nicholas S. Green, Bethany Kunz, M. McDonald, Benjamin West
Vegetation community recovery on restored bottomland hardwood forests in northeast Indiana, USA Vegetation community recovery on restored bottomland hardwood forests in northeast Indiana, USA
Vegetation communities in restored bottomland hardwood forests in northeast Indiana were studied 6–21 years after restoration to assess progress toward restoration objectives. The study focused on four sites that were restored to compensate for resource injuries after contaminant releases. The restored sites were compared with four reference-site conditions, including crops...
Authors
Matthew Struckhoff, Keith Grabner, Janice Albers, Michael Hooper
Evaluation of Ziram as an oral toxic bait chemical for control of grass carp Ctenopharyngodon idella Evaluation of Ziram as an oral toxic bait chemical for control of grass carp Ctenopharyngodon idella
The grass carp, Ctenopharyngodon idella, is an invasive species in North America that has been recorded in 45 states with breeding populations in several major river basins. Established populations of grass carp have had cascading, negative effects on aquatic ecosystem structure and function. Oral piscicide baits have been examined as a potential method to manage invasive grass carp. Our...
Authors
Nile Kemble, Keith Grabner, David Whites, David Walters, Michael Hooper, Jeffery Steevens
A floral survey of cliff habitats along Bull Run at Manassas National Battlefield Park, Virginia, 2014 A floral survey of cliff habitats along Bull Run at Manassas National Battlefield Park, Virginia, 2014
Isolated patches of native vegetation in human-modified landscapes are important reservoirs of biological diversity because they may be the only places in which rare or native species can persist. Manassas National Battlefield Park, Virginia, is an island embedded in a matrix of intensively modified lands; it is becoming increasingly isolated due to growth of the greater Washington, D.C...
Authors
Esther Stroh, Matthew Struckhoff, Keith Grabner
Effects of mining-associated lead and zinc soil contamination on native floristic quality Effects of mining-associated lead and zinc soil contamination on native floristic quality
We assessed the quality of plant communities across a range of lead (Pb) and zinc (Zn) soil concentrations at a variety of sites associated with Pb mining in southeast Missouri, USA. In a novel application, two standard floristic quality measures, Mean Coefficient of Conservatism (Mean C) and Floristic Quality Index (FQI), were examined in relation to concentrations of Pb and Zn, soil...
Authors
Matthew Struckhoff, Esther Stroh, Keith Grabner
Oak woodlands and forests fire consortium: A regional view of fire science sharing Oak woodlands and forests fire consortium: A regional view of fire science sharing
The Joint Fire Science Program established 14 regional fire science knowledge exchange consortia to improve the delivery of fire science information and communication among fire managers and researchers. Consortia were developed regionally to ensure that fire science information is tailored to meet regional needs. In this paper, emphasis was placed on the Oak Woodlands and Forests Fire...
Authors
Keith Grabner, Michael C. Stambaugh, Joseph Marschall, Erin Abadir
Changes to oak woodland stand structure and ground flora composition caused by thinning and burning Changes to oak woodland stand structure and ground flora composition caused by thinning and burning
Our objective was to quantify the cumulative effects of prescribed burning and thinning on forest stocking and species composition at a woodland restoration experiment site in the Ozark Highlands of Missouri. Our study used four treatments (burn, harvest, harvest and burn, control) on three slope position and aspect combinations (south, north, ridge) replicated in three complete blocks
Authors
Carter Kinkead, John Kabrick, Michael C. Stambaugh, Keith Grabner
Genesis of an oak-fire science consortium Genesis of an oak-fire science consortium
With respect to fire management and practices, one of the most overlooked regions lies in the middle of the country. In this region there is a critical need for both recognition of fire’s importance and sharing of fire information and expertise. Recently we proposed and were awarded funding by the Joint Fire Science Program to initiate the planning phase for a regional fire consortium...
Authors
K.W. Grabner, M. Stambaugh, R.P. Guyette, D. Dey, G.D. Willson
Vegetation communities at Big Muddy National Fish and Wildlife Refuge, Missouri Vegetation communities at Big Muddy National Fish and Wildlife Refuge, Missouri
New and existing data were used to describe and map vegetation communities at Big Muddy National Fish and Wildlife Refuge. Existing data had been gathered during the growing seasons of 2002, 2003, and 2004. New data were collected in 2007 to describe previously unsampled communities and communities within which insufficient data had been collected. Plot data and field observations were...
Authors
Matthew Struckhoff, Keith Grabner, Esther Stroh
Mapping vegetation communities in Ozark National Scenic Riverways: final technical report to the National Park Service Mapping vegetation communities in Ozark National Scenic Riverways: final technical report to the National Park Service
Vegetation communities were mapped at two levels in Ozark National Scenic Riverways (ONSR) usign a hybrid combination of statistical methods and photointerpretation. The primary map includes 49 cover classes, including 24 cleasses that relate to vegetation associations currenly described by the United States National Vegetation Classification Standard (USNVC: The Nature Conservancy...
Authors
Robert Chastain, Matthew Struckhoff, Keith Grabner, Esther Stroh, Hong He, David R. Larsen, Timothy Nigh, Jim Drake
Evaluating the impacts of white-tailed deer (Odocoileus virginianus) on vegetation within Pea Ridge National Military Park Evaluating the impacts of white-tailed deer (Odocoileus virginianus) on vegetation within Pea Ridge National Military Park
No abstract available.
Authors
Keith W. Grabner, Matthew Struckhoff, Deborah A. Buhl
Science and Products
Pickle Pond pre-restoration orthomosaic and elevation products, Superior, Wisconsin, September 2022 Pickle Pond pre-restoration orthomosaic and elevation products, Superior, Wisconsin, September 2022
The orthomosaic, digital surface model and point cloud presented here document conditions at Pickle Pond in Superior, Wisconsin in September 2022, prior to planned ecological restoration. Images were collected using a 3D Robotics Solo aircraft with GNSS GPS upgrade, Mission Planner software, and a Pentax Ricoh GRII 3-band digital camera sensor. Imagery acquisition flights were...
Otter Creek pre-restoration orthomosaic and elevation products, Toledo, Ohio, September 2022 Otter Creek pre-restoration orthomosaic and elevation products, Toledo, Ohio, September 2022
The orthomosaic, digital surface model and point cloud presented here document conditions at Otter Creek in Toledo, Ohio in September 2022, prior to planned ecological restoration. Images were collected using a 3D Robotics Solo aircraft with GNSS GPS upgrade, Mission Planner software, and a Pentax Ricoh GRII 3-band digital camera sensor. Imagery acquisition flights were approximately 400...
Swan Lake National Wildlife Refuge pre-restoration orthoimagery and elevation products, spring 2025 Swan Lake National Wildlife Refuge pre-restoration orthoimagery and elevation products, spring 2025
The products presented here document conditions at the Swan Lake National Wildlife Refuge, Missouri from March to May, 2025. Imagery was collected to document conditions at areas in the north (“N_wetlands”) and east (“E_wetlands”) portions of the refuge prior to restoration to modify hydrology and habitat and improve future management capabilities. Imagery also captured a section of...
Orthoimagery, digital surface model, and point cloud for the Big Bend restoration site, West Jordan Utah, January, 2022 Orthoimagery, digital surface model, and point cloud for the Big Bend restoration site, West Jordan Utah, January, 2022
The products presented here document conditions at the Big Bend restoration site on the Jordan River, West Jordan, Utah in January, 2022. Multiband imagery was collected shortly after the initiation of restoration actions. Images were collected using a 3DR Solo unoccupied aerial system (UAS) at a height approximately 400 feet above the surface of the Jordan River flood plain using a...
Little Saint Francis River chat pile orthoimagery and elevation products, Missouri, July 2019 Little Saint Francis River chat pile orthoimagery and elevation products, Missouri, July 2019
The products presented here document conditions at the Little Saint Francis River chat pile restoration site near Fredericktown, Missouri in July 2019. Imagery was collected shortly after the initiation of restoration actions. Images were collected using low-altitude flights of unoccupied aerial systems (UAS, or “drones”) and processed using structure-from-motion techniques to generate...
Toxicity data for the evaluation of Ziram to Grass Carp Ctenopharyngodon idella in a laboratory setting Toxicity data for the evaluation of Ziram to Grass Carp Ctenopharyngodon idella in a laboratory setting
Data consists of dose, dose method, solvent, weight, length and survival of test species from bioassays following an Up-and-Down method conducted with Ziram.
NE Indiana bottomland restoration vegetation, soils and carbon data, 2015 and 2016 NE Indiana bottomland restoration vegetation, soils and carbon data, 2015 and 2016
This data set includes tables providing location, environmental, vegetation, soils, and carbon sampling data collected in 2015 and 2016 at vegetation sampling units on restored areas and other habitats at sites in northeast Indiana, USA. "Sample_units.txt" provides location, environmental, soil physical and chemical properties for each sample location. "Subplot_ground_flora.txt" provides...
Bat at Mine Detention Pond
Ernie Valdez, USGS Fort Collins Science Center, examines a bat caught over the mine detention pond.
Ernie Valdez, USGS Fort Collins Science Center, examines a bat caught over the mine detention pond.
Filter Total Items: 16
Restoration monitoring metric framework: Integrating innovative remote-sensing technologies: Comparisons between field and remotely sensed vegetation surveys of restored forested and grassland sites in Ohio Restoration monitoring metric framework: Integrating innovative remote-sensing technologies: Comparisons between field and remotely sensed vegetation surveys of restored forested and grassland sites in Ohio
Restoration monitoring is generally perceived as costly and time-consuming, yet the concept of universal restoration monitoring metrics is trending for evaluation of restoration performance across spatial scales, project boundaries, and jurisdictions. Natural Resource Damage Assessment and Restoration (NRDAR) practitioners seek to restore natural resources injured by oil spills or...
Authors
Heather Theel, Molly Reif, Safra Altman, Christina Saltus, Nathan Beane, Samuel Jackson, Scott Bourne, Jennifer Laird, Shea Hammond, Kenneth Matheson, Thomas Berry, Jo Hinck, Keith Grabner, Esther D. Stroh, Robin L. Tillitt, Kristin Skrabis
Studies to assess natural resource recovery and evaluate monitoring methods for restored bottomland hardwood forests Studies to assess natural resource recovery and evaluate monitoring methods for restored bottomland hardwood forests
The Natural Resource Damage Assessment and Restoration process assesses natural resource injury due to oil or chemical spills and calculates the damages to compensate the public for those injuries. Ecological restoration provides a means for recovering resources injured or lost due to contamination from oil or chemical spills by restoring the injured site after remediation, or acquiring...
Authors
Michael Hooper, Matthew Struckhoff, John Isanhart, Janice Albers, Keith Grabner, Nicholas S. Green, Bethany Kunz, M. McDonald, Benjamin West
Vegetation community recovery on restored bottomland hardwood forests in northeast Indiana, USA Vegetation community recovery on restored bottomland hardwood forests in northeast Indiana, USA
Vegetation communities in restored bottomland hardwood forests in northeast Indiana were studied 6–21 years after restoration to assess progress toward restoration objectives. The study focused on four sites that were restored to compensate for resource injuries after contaminant releases. The restored sites were compared with four reference-site conditions, including crops...
Authors
Matthew Struckhoff, Keith Grabner, Janice Albers, Michael Hooper
Evaluation of Ziram as an oral toxic bait chemical for control of grass carp Ctenopharyngodon idella Evaluation of Ziram as an oral toxic bait chemical for control of grass carp Ctenopharyngodon idella
The grass carp, Ctenopharyngodon idella, is an invasive species in North America that has been recorded in 45 states with breeding populations in several major river basins. Established populations of grass carp have had cascading, negative effects on aquatic ecosystem structure and function. Oral piscicide baits have been examined as a potential method to manage invasive grass carp. Our...
Authors
Nile Kemble, Keith Grabner, David Whites, David Walters, Michael Hooper, Jeffery Steevens
A floral survey of cliff habitats along Bull Run at Manassas National Battlefield Park, Virginia, 2014 A floral survey of cliff habitats along Bull Run at Manassas National Battlefield Park, Virginia, 2014
Isolated patches of native vegetation in human-modified landscapes are important reservoirs of biological diversity because they may be the only places in which rare or native species can persist. Manassas National Battlefield Park, Virginia, is an island embedded in a matrix of intensively modified lands; it is becoming increasingly isolated due to growth of the greater Washington, D.C...
Authors
Esther Stroh, Matthew Struckhoff, Keith Grabner
Effects of mining-associated lead and zinc soil contamination on native floristic quality Effects of mining-associated lead and zinc soil contamination on native floristic quality
We assessed the quality of plant communities across a range of lead (Pb) and zinc (Zn) soil concentrations at a variety of sites associated with Pb mining in southeast Missouri, USA. In a novel application, two standard floristic quality measures, Mean Coefficient of Conservatism (Mean C) and Floristic Quality Index (FQI), were examined in relation to concentrations of Pb and Zn, soil...
Authors
Matthew Struckhoff, Esther Stroh, Keith Grabner
Oak woodlands and forests fire consortium: A regional view of fire science sharing Oak woodlands and forests fire consortium: A regional view of fire science sharing
The Joint Fire Science Program established 14 regional fire science knowledge exchange consortia to improve the delivery of fire science information and communication among fire managers and researchers. Consortia were developed regionally to ensure that fire science information is tailored to meet regional needs. In this paper, emphasis was placed on the Oak Woodlands and Forests Fire...
Authors
Keith Grabner, Michael C. Stambaugh, Joseph Marschall, Erin Abadir
Changes to oak woodland stand structure and ground flora composition caused by thinning and burning Changes to oak woodland stand structure and ground flora composition caused by thinning and burning
Our objective was to quantify the cumulative effects of prescribed burning and thinning on forest stocking and species composition at a woodland restoration experiment site in the Ozark Highlands of Missouri. Our study used four treatments (burn, harvest, harvest and burn, control) on three slope position and aspect combinations (south, north, ridge) replicated in three complete blocks
Authors
Carter Kinkead, John Kabrick, Michael C. Stambaugh, Keith Grabner
Genesis of an oak-fire science consortium Genesis of an oak-fire science consortium
With respect to fire management and practices, one of the most overlooked regions lies in the middle of the country. In this region there is a critical need for both recognition of fire’s importance and sharing of fire information and expertise. Recently we proposed and were awarded funding by the Joint Fire Science Program to initiate the planning phase for a regional fire consortium...
Authors
K.W. Grabner, M. Stambaugh, R.P. Guyette, D. Dey, G.D. Willson
Vegetation communities at Big Muddy National Fish and Wildlife Refuge, Missouri Vegetation communities at Big Muddy National Fish and Wildlife Refuge, Missouri
New and existing data were used to describe and map vegetation communities at Big Muddy National Fish and Wildlife Refuge. Existing data had been gathered during the growing seasons of 2002, 2003, and 2004. New data were collected in 2007 to describe previously unsampled communities and communities within which insufficient data had been collected. Plot data and field observations were...
Authors
Matthew Struckhoff, Keith Grabner, Esther Stroh
Mapping vegetation communities in Ozark National Scenic Riverways: final technical report to the National Park Service Mapping vegetation communities in Ozark National Scenic Riverways: final technical report to the National Park Service
Vegetation communities were mapped at two levels in Ozark National Scenic Riverways (ONSR) usign a hybrid combination of statistical methods and photointerpretation. The primary map includes 49 cover classes, including 24 cleasses that relate to vegetation associations currenly described by the United States National Vegetation Classification Standard (USNVC: The Nature Conservancy...
Authors
Robert Chastain, Matthew Struckhoff, Keith Grabner, Esther Stroh, Hong He, David R. Larsen, Timothy Nigh, Jim Drake
Evaluating the impacts of white-tailed deer (Odocoileus virginianus) on vegetation within Pea Ridge National Military Park Evaluating the impacts of white-tailed deer (Odocoileus virginianus) on vegetation within Pea Ridge National Military Park
No abstract available.
Authors
Keith W. Grabner, Matthew Struckhoff, Deborah A. Buhl