Glenn Guntenspergen, Ph.D.
Glenn is a Research Ecologist at the Eastern Ecological Science Center in Laurel, MD.
Science and Products
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Evidence for 20th century climate warming and wetland drying in the North American Prairie Pothole Region Evidence for 20th century climate warming and wetland drying in the North American Prairie Pothole Region
The Prairie Pothole Region (PPR) of North America is a globally important resource that provides abundant and valuable ecosystem goods and services in the form of biodiversity, groundwater recharge, water purification, flood attenuation, and water and forage for agriculture. Numerous studies have found these wetlands, which number in the millions, to be highly sensitive to climate...
Authors
B. A. Werner, W. Carter Johnson, Glenn R. Guntenspergen
The impact of sea-level rise on organic matter decay rates in Chesapeake Bay brackish tidal marshes The impact of sea-level rise on organic matter decay rates in Chesapeake Bay brackish tidal marshes
The balance between organic matter production and decay determines how fast coastal wetlands accumulate soil organic matter. Despite the importance of soil organic matter accumulation rates in influencing marsh elevation and resistance to sea-level rise, relatively little is known about how decomposition rates will respond to sea-level rise. Here, we estimate the sensitivity of...
Authors
M.L. Kirwanm, J.A. Langley, Gleen R. Guntenspergen, J.P. Megonigal
A global standard for monitoring coastal wetland vulnerability to accelerated sea-level rise A global standard for monitoring coastal wetland vulnerability to accelerated sea-level rise
Sea-level rise threatens coastal salt-marshes and mangrove forests around the world, and a key determinant of coastal wetland vulnerability is whether its surface elevation can keep pace with rising sea level. Globally, a large data gap exists because wetland surface and shallow subsurface processes remain unaccounted for by traditional vulnerability assessments using tide gauges...
Authors
Edward L. Webb, Daniel A. Friess, Ken W. Krauss, Donald R. Cahoon, Glenn R. Guntenspergen, Jacob Phelps
A causal examination of the effects of confounding factors on multimetric indices A causal examination of the effects of confounding factors on multimetric indices
The development of multimetric indices (MMIs) as a means of providing integrative measures of ecosystem condition is becoming widespread. An increasingly recognized problem for the interpretability of MMIs is controlling for the potentially confounding influences of environmental covariates. Most common approaches to handling covariates are based on simple notions of statistical control...
Authors
Donald R. Schoolmaster, James B. Grace, E. William Schweiger, Brian R. Mitchell, Glenn R. Guntenspergen
Identification of metrics to monitor salt marsh integrity on National Wildlife Refuges in relation to conservation and management objectives Identification of metrics to monitor salt marsh integrity on National Wildlife Refuges in relation to conservation and management objectives
Executive Summary Most salt marshes in the US have been degraded by human activities, and threats from physical alterations, surrounding land-use, species invasions, and global climate change persist. Salt marshes are unique and highly productive ecosystems with high intrinsic value to wildlife, and many National Wildlife Refuges (NWRs) have been established in coastal areas to protect...
Authors
Hilary A. Neckles, Glenn R. Guntenspergen, W. George Shriver, Nicholas P. Danz, Whitney A. Wiest, Jessica L. Nagel, Jennifer H. Olker
An algorithmic and information-theoretic approach to multimetric index construction An algorithmic and information-theoretic approach to multimetric index construction
The use of multimetric indices (MMIs), such as the widely used index of biological integrity (IBI), to measure, track, summarize and infer the overall impact of human disturbance on biological communities has been steadily growing in recent years. Initially, MMIs were developed for aquatic communities using pre-selected biological metrics as indicators of system integrity. As interest in...
Authors
Donald R. Schoolmaster, James B. Grace, E. William Schweiger, Glenn R. Guntenspergen, Brian R. Mitchell, Kathryn M. Miller, Amanda M. Little
Science and Products
Filter Total Items: 19
No Result Found
Filter Total Items: 134
Evidence for 20th century climate warming and wetland drying in the North American Prairie Pothole Region Evidence for 20th century climate warming and wetland drying in the North American Prairie Pothole Region
The Prairie Pothole Region (PPR) of North America is a globally important resource that provides abundant and valuable ecosystem goods and services in the form of biodiversity, groundwater recharge, water purification, flood attenuation, and water and forage for agriculture. Numerous studies have found these wetlands, which number in the millions, to be highly sensitive to climate...
Authors
B. A. Werner, W. Carter Johnson, Glenn R. Guntenspergen
The impact of sea-level rise on organic matter decay rates in Chesapeake Bay brackish tidal marshes The impact of sea-level rise on organic matter decay rates in Chesapeake Bay brackish tidal marshes
The balance between organic matter production and decay determines how fast coastal wetlands accumulate soil organic matter. Despite the importance of soil organic matter accumulation rates in influencing marsh elevation and resistance to sea-level rise, relatively little is known about how decomposition rates will respond to sea-level rise. Here, we estimate the sensitivity of...
Authors
M.L. Kirwanm, J.A. Langley, Gleen R. Guntenspergen, J.P. Megonigal
A global standard for monitoring coastal wetland vulnerability to accelerated sea-level rise A global standard for monitoring coastal wetland vulnerability to accelerated sea-level rise
Sea-level rise threatens coastal salt-marshes and mangrove forests around the world, and a key determinant of coastal wetland vulnerability is whether its surface elevation can keep pace with rising sea level. Globally, a large data gap exists because wetland surface and shallow subsurface processes remain unaccounted for by traditional vulnerability assessments using tide gauges...
Authors
Edward L. Webb, Daniel A. Friess, Ken W. Krauss, Donald R. Cahoon, Glenn R. Guntenspergen, Jacob Phelps
A causal examination of the effects of confounding factors on multimetric indices A causal examination of the effects of confounding factors on multimetric indices
The development of multimetric indices (MMIs) as a means of providing integrative measures of ecosystem condition is becoming widespread. An increasingly recognized problem for the interpretability of MMIs is controlling for the potentially confounding influences of environmental covariates. Most common approaches to handling covariates are based on simple notions of statistical control...
Authors
Donald R. Schoolmaster, James B. Grace, E. William Schweiger, Brian R. Mitchell, Glenn R. Guntenspergen
Identification of metrics to monitor salt marsh integrity on National Wildlife Refuges in relation to conservation and management objectives Identification of metrics to monitor salt marsh integrity on National Wildlife Refuges in relation to conservation and management objectives
Executive Summary Most salt marshes in the US have been degraded by human activities, and threats from physical alterations, surrounding land-use, species invasions, and global climate change persist. Salt marshes are unique and highly productive ecosystems with high intrinsic value to wildlife, and many National Wildlife Refuges (NWRs) have been established in coastal areas to protect...
Authors
Hilary A. Neckles, Glenn R. Guntenspergen, W. George Shriver, Nicholas P. Danz, Whitney A. Wiest, Jessica L. Nagel, Jennifer H. Olker
An algorithmic and information-theoretic approach to multimetric index construction An algorithmic and information-theoretic approach to multimetric index construction
The use of multimetric indices (MMIs), such as the widely used index of biological integrity (IBI), to measure, track, summarize and infer the overall impact of human disturbance on biological communities has been steadily growing in recent years. Initially, MMIs were developed for aquatic communities using pre-selected biological metrics as indicators of system integrity. As interest in...
Authors
Donald R. Schoolmaster, James B. Grace, E. William Schweiger, Glenn R. Guntenspergen, Brian R. Mitchell, Kathryn M. Miller, Amanda M. Little