Glenn Guntenspergen, Ph.D.
Glenn is a Research Ecologist at the Eastern Ecological Science Center in Laurel, MD.
Science and Products
Filter Total Items: 19
No Result Found
Filter Total Items: 132
Climatic controls on the distribution of foundation plant species in coastal wetlands of the conterminous United States: Knowledge gaps and emerging research needs Climatic controls on the distribution of foundation plant species in coastal wetlands of the conterminous United States: Knowledge gaps and emerging research needs
Foundation plant species play a critical role in coastal wetlands, often modifying abiotic conditions that are too stressful for most organisms and providing the primary habitat features that support entire ecological communities. Here, we consider the influence of climatic drivers on the distribution of foundation plant species within coastal wetlands of the conterminous USA. Using...
Authors
Michael Osland, James B. Grace, Glenn Guntenspergen, Karen Thorne, Joel Carr, Laura Feher
Thin-layer sediment addition to an existing salt marsh to combat sea-level rise and improve endangered species habitat in California, USA Thin-layer sediment addition to an existing salt marsh to combat sea-level rise and improve endangered species habitat in California, USA
Current tidal marsh elevations and their accretion rates are important predictors of vulnerability to sea-level rise. When tidal marshes are at risk, adaptation measures, such as sediment addition to increase elevations, can be implemented to prevent degradation and loss. In 2016, wildlife managers prescribed a thin-layer sediment addition of locally sourced dredged material from Anaheim...
Authors
Karen M. Thorne, Chase Freeman, Jordan A. Rosencranz, Neil K. Ganju, Glenn Guntenspergen
Hurricane Sandy impacts on coastal wetland resilience Hurricane Sandy impacts on coastal wetland resilience
The goal of this research was to evaluate the impacts of Hurricane Sandy on surface elevation trends in estuarine marshes located across the northeast region of the United States from Virginia to Maine using data from an opportunistic (in other words, not strategic) and collaborative network (from here on, an opportunistic network) of surface elevation table-marker horizon (SET-MH)...
Authors
Donald R. Cahoon, Jennifer Olker, Alice Yeates, Glenn Guntenspergen, James Grace, Susan Adamowicz, Shimon Anisfeld, Andrew Baldwin, Nels Barrett, Leah Beckett, Alice Benzecry, Linda Blum, David Burdick, William Crouch, Marci Ekberg, Sarah Fernald, Kristin Grimes, Joseph Grzyb, Ellen Hartig, Danielle Kreeger, Marit Larson, Scott Lerberg, James Lynch, Nicole Maher, Martha Maxwell-Doyle, Laura R. Mitchell, Jordan Mora, Victoria O’Neill, Angela Padeletti, Diann Prosser, Tracy Quirk, Kenneth Raposa, William Reay, Drexel Siok, Christopher Snow, Adam Starke, J. Stevenson, Lorie Staver, Vincent Turner
Simulating the effects of climate variability on waterbodies and wetland-dependent birds in the Prairie Pothole Region Simulating the effects of climate variability on waterbodies and wetland-dependent birds in the Prairie Pothole Region
Understanding how bird populations respond to changes in waterbody availability in the climatically variable Prairie Pothole Region (PPR) of North America hinges on being able to couple hydrological and climate modeling to represent potential future landscapes. Model experiments run with the Pothole Complex Hydrologic Model using downscaled climate data (variables relating to...
Authors
N.E. Mcintyre, G. Liu, J. Gorzo, C.K. Wright, Glenn Guntenspergen, F. Schwartz
Estimates of tidal-marsh bird densities using Bayesian networks Estimates of tidal-marsh bird densities using Bayesian networks
Conserving tidal-marsh bird communities requires strategies to address continuing pressures from human development to the effects of increasing rates of sea-level rise. Knowing tidal-marsh bird distributions and population sizes are important for developing these strategies. In the Northeast United States, where estimates of sea-level rise are 3 times higher than the global average, 5...
Authors
Whitney Wiest, Maureen Correll, Bruce Marcot, Brian Olsen, Chris Elphick, Thomas Hodgman, Glenn Guntenspergen, W. Shriver
U.S. Pacific coastal wetland resilience and vulnerability to sea-level rise U.S. Pacific coastal wetland resilience and vulnerability to sea-level rise
We used a first-of-its-kind comprehensive scenario approach to evaluate both the vertical and horizontal response of tidal wetlands to projected changes in the rate of sea-level rise (SLR) across 14 estuaries along the Pacific coast of the continental United States. Throughout the U.S. Pacific region, we found that tidal wetlands are highly vulnerable to end-of-century submergence, with...
Authors
Karen M. Thorne, Glen MacDonald, Glenn Guntenspergen, Richard Ambrose, Kevin Buffington, Bruce Dugger, Chase Freeman, Christopher Janousek, Lauren Brown, Jordan A. Rosencranz, James Homquist, John Smol, Kathryn Hargan, John Takekawa
Development of a multimetric index for integrated assessment of salt marsh ecosystem condition Development of a multimetric index for integrated assessment of salt marsh ecosystem condition
Tools for assessing and communicating salt marsh condition are essential to guide decisions aimed at maintaining or restoring ecosystem integrity and services. Multimetric indices (MMIs) are increasingly used to provide integrated assessments of ecosystem condition. We employed a theory-based approach that considers the multivariate relationship of metrics with human disturbance to...
Authors
Jessica Nagel, Hilary Neckles, Glenn Guntenspergen, Erika Rocks, Donald Schoolmaster, James Grace, Dennis Skidds, Sara Stevens
Reply to ‘Marsh vulnerability to sea-level rise’ Reply to ‘Marsh vulnerability to sea-level rise’
Response to Parkinson et al. Rebuttal of Kirwan, M. L., Temmerman, S., Skeehan, E. E., Guntenspergen, G. R.,& Fagherazzi, S. (2016). Overestimation of marsh vulnerability to sea level rise. Nature Climate Change, 6(3):253-2601.
Authors
Matthew Kirwan, Stijn Temmerman, Glenn Guntenspergen, Sergio Fagherazzi
Inundation, vegetation, and sediment effects on litter decomposition in Pacific Coast tidal marshes Inundation, vegetation, and sediment effects on litter decomposition in Pacific Coast tidal marshes
The cycling and sequestration of carbon are important ecosystem functions of estuarine wetlands that may be affected by climate change. We conducted experiments across a latitudinal and climate gradient of tidal marshes in the northeast Pacific to evaluate the effects of climate- and vegetation-related factors on litter decomposition. We manipulated tidal exposure and litter type in...
Authors
Christopher Janousek, Kevin Buffington, Glenn Guntenspergen, Karen Thorne, Bruce D. Dugger, John Takekawa
Vegetation recovery in tidal marshes reveals critical slowing down under increased inundation Vegetation recovery in tidal marshes reveals critical slowing down under increased inundation
A declining rate of recovery following disturbance has been proposed as an important early warning for impending tipping points in complex systems. Despite extensive theoretical and laboratory studies, this ‘critical slowing down’ remains largely untested in the complex settings of real-world ecosystems. Here, we provide both observational and experimental support of critical slowing...
Authors
Jim van Belzen, Johan van de Koppel, Matthew Kirwan, Daphne van der Wal, Peter Herman, Vasilis Dakos, Sonia Kefi, Marten Scheffer, Glenn Guntenspergen, Tjeerd Bouma
Spatio-temporal development of vegetation die-off in a submerging coastal marsh Spatio-temporal development of vegetation die-off in a submerging coastal marsh
In several places around the world, coastal marsh vegetation is converting to open water through the formation of pools. This is concerning, as vegetation die-off is expected to reduce the marshes' capacity to adapt to sea level rise by vegetation-induced sediment accretion. Quantitative analyses of the spatial and temporal development of marsh vegetation die-off are scarce, although...
Authors
Lennert Schepers, Matthew Kirwan, Glenn Guntenspergen, Stijn Temmerman
Modeling the effects of tile drain placement on the hydrologic function of farmed prairie wetlands Modeling the effects of tile drain placement on the hydrologic function of farmed prairie wetlands
The early 2000s saw large increases in agricultural tile drainage in the eastern Dakotas of North America. Agricultural practices that drain wetlands directly are sometimes limited by wetland protection programs. Little is known about the impacts of tile drainage beyond the delineated boundaries of wetlands in upland catchments that may be in agricultural production. A series of...
Authors
Brett Werner, John Tracy, W. Johnson, Richard Voldseth, Glenn Guntenspergen, Bruce Millett
Science and Products
Filter Total Items: 19
No Result Found
Filter Total Items: 132
Climatic controls on the distribution of foundation plant species in coastal wetlands of the conterminous United States: Knowledge gaps and emerging research needs Climatic controls on the distribution of foundation plant species in coastal wetlands of the conterminous United States: Knowledge gaps and emerging research needs
Foundation plant species play a critical role in coastal wetlands, often modifying abiotic conditions that are too stressful for most organisms and providing the primary habitat features that support entire ecological communities. Here, we consider the influence of climatic drivers on the distribution of foundation plant species within coastal wetlands of the conterminous USA. Using...
Authors
Michael Osland, James B. Grace, Glenn Guntenspergen, Karen Thorne, Joel Carr, Laura Feher
Thin-layer sediment addition to an existing salt marsh to combat sea-level rise and improve endangered species habitat in California, USA Thin-layer sediment addition to an existing salt marsh to combat sea-level rise and improve endangered species habitat in California, USA
Current tidal marsh elevations and their accretion rates are important predictors of vulnerability to sea-level rise. When tidal marshes are at risk, adaptation measures, such as sediment addition to increase elevations, can be implemented to prevent degradation and loss. In 2016, wildlife managers prescribed a thin-layer sediment addition of locally sourced dredged material from Anaheim...
Authors
Karen M. Thorne, Chase Freeman, Jordan A. Rosencranz, Neil K. Ganju, Glenn Guntenspergen
Hurricane Sandy impacts on coastal wetland resilience Hurricane Sandy impacts on coastal wetland resilience
The goal of this research was to evaluate the impacts of Hurricane Sandy on surface elevation trends in estuarine marshes located across the northeast region of the United States from Virginia to Maine using data from an opportunistic (in other words, not strategic) and collaborative network (from here on, an opportunistic network) of surface elevation table-marker horizon (SET-MH)...
Authors
Donald R. Cahoon, Jennifer Olker, Alice Yeates, Glenn Guntenspergen, James Grace, Susan Adamowicz, Shimon Anisfeld, Andrew Baldwin, Nels Barrett, Leah Beckett, Alice Benzecry, Linda Blum, David Burdick, William Crouch, Marci Ekberg, Sarah Fernald, Kristin Grimes, Joseph Grzyb, Ellen Hartig, Danielle Kreeger, Marit Larson, Scott Lerberg, James Lynch, Nicole Maher, Martha Maxwell-Doyle, Laura R. Mitchell, Jordan Mora, Victoria O’Neill, Angela Padeletti, Diann Prosser, Tracy Quirk, Kenneth Raposa, William Reay, Drexel Siok, Christopher Snow, Adam Starke, J. Stevenson, Lorie Staver, Vincent Turner
Simulating the effects of climate variability on waterbodies and wetland-dependent birds in the Prairie Pothole Region Simulating the effects of climate variability on waterbodies and wetland-dependent birds in the Prairie Pothole Region
Understanding how bird populations respond to changes in waterbody availability in the climatically variable Prairie Pothole Region (PPR) of North America hinges on being able to couple hydrological and climate modeling to represent potential future landscapes. Model experiments run with the Pothole Complex Hydrologic Model using downscaled climate data (variables relating to...
Authors
N.E. Mcintyre, G. Liu, J. Gorzo, C.K. Wright, Glenn Guntenspergen, F. Schwartz
Estimates of tidal-marsh bird densities using Bayesian networks Estimates of tidal-marsh bird densities using Bayesian networks
Conserving tidal-marsh bird communities requires strategies to address continuing pressures from human development to the effects of increasing rates of sea-level rise. Knowing tidal-marsh bird distributions and population sizes are important for developing these strategies. In the Northeast United States, where estimates of sea-level rise are 3 times higher than the global average, 5...
Authors
Whitney Wiest, Maureen Correll, Bruce Marcot, Brian Olsen, Chris Elphick, Thomas Hodgman, Glenn Guntenspergen, W. Shriver
U.S. Pacific coastal wetland resilience and vulnerability to sea-level rise U.S. Pacific coastal wetland resilience and vulnerability to sea-level rise
We used a first-of-its-kind comprehensive scenario approach to evaluate both the vertical and horizontal response of tidal wetlands to projected changes in the rate of sea-level rise (SLR) across 14 estuaries along the Pacific coast of the continental United States. Throughout the U.S. Pacific region, we found that tidal wetlands are highly vulnerable to end-of-century submergence, with...
Authors
Karen M. Thorne, Glen MacDonald, Glenn Guntenspergen, Richard Ambrose, Kevin Buffington, Bruce Dugger, Chase Freeman, Christopher Janousek, Lauren Brown, Jordan A. Rosencranz, James Homquist, John Smol, Kathryn Hargan, John Takekawa
Development of a multimetric index for integrated assessment of salt marsh ecosystem condition Development of a multimetric index for integrated assessment of salt marsh ecosystem condition
Tools for assessing and communicating salt marsh condition are essential to guide decisions aimed at maintaining or restoring ecosystem integrity and services. Multimetric indices (MMIs) are increasingly used to provide integrated assessments of ecosystem condition. We employed a theory-based approach that considers the multivariate relationship of metrics with human disturbance to...
Authors
Jessica Nagel, Hilary Neckles, Glenn Guntenspergen, Erika Rocks, Donald Schoolmaster, James Grace, Dennis Skidds, Sara Stevens
Reply to ‘Marsh vulnerability to sea-level rise’ Reply to ‘Marsh vulnerability to sea-level rise’
Response to Parkinson et al. Rebuttal of Kirwan, M. L., Temmerman, S., Skeehan, E. E., Guntenspergen, G. R.,& Fagherazzi, S. (2016). Overestimation of marsh vulnerability to sea level rise. Nature Climate Change, 6(3):253-2601.
Authors
Matthew Kirwan, Stijn Temmerman, Glenn Guntenspergen, Sergio Fagherazzi
Inundation, vegetation, and sediment effects on litter decomposition in Pacific Coast tidal marshes Inundation, vegetation, and sediment effects on litter decomposition in Pacific Coast tidal marshes
The cycling and sequestration of carbon are important ecosystem functions of estuarine wetlands that may be affected by climate change. We conducted experiments across a latitudinal and climate gradient of tidal marshes in the northeast Pacific to evaluate the effects of climate- and vegetation-related factors on litter decomposition. We manipulated tidal exposure and litter type in...
Authors
Christopher Janousek, Kevin Buffington, Glenn Guntenspergen, Karen Thorne, Bruce D. Dugger, John Takekawa
Vegetation recovery in tidal marshes reveals critical slowing down under increased inundation Vegetation recovery in tidal marshes reveals critical slowing down under increased inundation
A declining rate of recovery following disturbance has been proposed as an important early warning for impending tipping points in complex systems. Despite extensive theoretical and laboratory studies, this ‘critical slowing down’ remains largely untested in the complex settings of real-world ecosystems. Here, we provide both observational and experimental support of critical slowing...
Authors
Jim van Belzen, Johan van de Koppel, Matthew Kirwan, Daphne van der Wal, Peter Herman, Vasilis Dakos, Sonia Kefi, Marten Scheffer, Glenn Guntenspergen, Tjeerd Bouma
Spatio-temporal development of vegetation die-off in a submerging coastal marsh Spatio-temporal development of vegetation die-off in a submerging coastal marsh
In several places around the world, coastal marsh vegetation is converting to open water through the formation of pools. This is concerning, as vegetation die-off is expected to reduce the marshes' capacity to adapt to sea level rise by vegetation-induced sediment accretion. Quantitative analyses of the spatial and temporal development of marsh vegetation die-off are scarce, although...
Authors
Lennert Schepers, Matthew Kirwan, Glenn Guntenspergen, Stijn Temmerman
Modeling the effects of tile drain placement on the hydrologic function of farmed prairie wetlands Modeling the effects of tile drain placement on the hydrologic function of farmed prairie wetlands
The early 2000s saw large increases in agricultural tile drainage in the eastern Dakotas of North America. Agricultural practices that drain wetlands directly are sometimes limited by wetland protection programs. Little is known about the impacts of tile drainage beyond the delineated boundaries of wetlands in upland catchments that may be in agricultural production. A series of...
Authors
Brett Werner, John Tracy, W. Johnson, Richard Voldseth, Glenn Guntenspergen, Bruce Millett