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
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
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 subplot e
Bat at Mine Detention Pond
Ernie Valdez, USGS Fort Collins Science Center, examines a bat caught over the mine detention pond.
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 or reconst
Authors
Michael J. Hooper, Matthew Struckhoff, John P. Isanhart, Janice L. Albers, Keith Grabner, Nicholas S. Green, Bethany K. Kunz, M. Victoria McDonald, Benjamin M West
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 (prerestoration conditi
Authors
Matthew Struckhoff, Keith Grabner, Janice L. Albers, Michael J. Hooper
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 goal was
Authors
Nile E. Kemble, Keith Grabner, David W. Whites, David Walters, Michael J. Hooper, Jeffery Steevens
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. area. A s
Authors
Esther D. Stroh, Matthew A. Struckhoff, Keith W. Grabner
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 nutrients, a
Authors
Matthew A. Struckhoff, Esther D. Stroh, Keith W. Grabner
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 Consortium
Authors
Keith W. Grabner, Michael C. Stambaugh, Joseph M. Marschall, Erin R. Abadir
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. Harvest
Authors
Carter O. Kinkead, John M. Kabrick, Michael C. Stambaugh, Keith W. Grabner
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. The purpos
Authors
K.W. Grabner, M. C. Stambaugh, R.P. Guyette, D. C. Dey, G.D. Willson
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 used to des
Authors
Matthew A. Struckhoff, Keith W. Grabner, Esther D. Stroh
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, 1994a). The
Authors
Robert A. Chastain, Matthew A. Struckhoff, Keith W. Grabner, Esther D. Stroh, Hong He, David R. Larsen, Timothy A. Nigh, Jim Drake
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
An updated rate-of-spread clock
Several years ago, Blank and Simard (1983) described an electronic timer, frequently referred to as a rate-of-spread (ROS) clock—a relatively simple instrument used in measuring fire spread. Although other techniques for measuring rate of spread are available (such as data loggers), the basic ROS clock remains a valuable and relatively inexpensive tool. However, several items described in the orig
Authors
Jeremy Kolaks, Keith W. Grabner, George Hartman, Bruce E. Cutter, Edward F. Loewenstein
Science and Products
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
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 subplot e
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.
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 or reconst
Authors
Michael J. Hooper, Matthew Struckhoff, John P. Isanhart, Janice L. Albers, Keith Grabner, Nicholas S. Green, Bethany K. Kunz, M. Victoria McDonald, Benjamin M West
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 (prerestoration conditi
Authors
Matthew Struckhoff, Keith Grabner, Janice L. Albers, Michael J. Hooper
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 goal was
Authors
Nile E. Kemble, Keith Grabner, David W. Whites, David Walters, Michael J. Hooper, Jeffery Steevens
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. area. A s
Authors
Esther D. Stroh, Matthew A. Struckhoff, Keith W. Grabner
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 nutrients, a
Authors
Matthew A. Struckhoff, Esther D. Stroh, Keith W. Grabner
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 Consortium
Authors
Keith W. Grabner, Michael C. Stambaugh, Joseph M. Marschall, Erin R. Abadir
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. Harvest
Authors
Carter O. Kinkead, John M. Kabrick, Michael C. Stambaugh, Keith W. Grabner
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. The purpos
Authors
K.W. Grabner, M. C. Stambaugh, R.P. Guyette, D. C. Dey, G.D. Willson
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 used to des
Authors
Matthew A. Struckhoff, Keith W. Grabner, Esther D. Stroh
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, 1994a). The
Authors
Robert A. Chastain, Matthew A. Struckhoff, Keith W. Grabner, Esther D. Stroh, Hong He, David R. Larsen, Timothy A. Nigh, Jim Drake
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
An updated rate-of-spread clock
Several years ago, Blank and Simard (1983) described an electronic timer, frequently referred to as a rate-of-spread (ROS) clock—a relatively simple instrument used in measuring fire spread. Although other techniques for measuring rate of spread are available (such as data loggers), the basic ROS clock remains a valuable and relatively inexpensive tool. However, several items described in the orig
Authors
Jeremy Kolaks, Keith W. Grabner, George Hartman, Bruce E. Cutter, Edward F. Loewenstein