Glenn Guntenspergen, Ph.D.
Glenn is a Research Ecologist at the Eastern Ecological Science Center in Laurel, MD.
Science and Products
Filter Total Items: 14
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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 Bay to mi
Authors
Karen M. Thorne, Chase M. Freeman, Jordan A. Rosencranz, Neil K. Ganju, Glenn R. Guntenspergen
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) stations. First
Authors
Donald R. Cahoon, Jennifer H. Olker, Alice G. Yeates, Glenn R. Guntenspergen, James B. Grace, Susan C. Adamowicz, Shimon C. Anisfeld, Andrew H. Baldwin, Nels Barrett, Leah Beckett, Alice Benzecry, Linda K. Blum, David M. Burdick, William Crouch, Marci Cole Ekberg, Sarah Fernald, Kristin Wilson Grimes, Joseph Grzyb, Ellen Kracauer Hartig, Danielle A. Kreeger, Marit Larson, Scott Lerberg, James C. Lynch, Nicole Maher, Martha Maxwell-Doyle, Laura R. Mitchell, Jordan Mora, Victoria O'Neill, Angela Padeletti, Diann J. Prosser, Tracy Quirk, Kenneth B. Raposa, William G. Reay, Drexel Siok, Christopher Snow, Adam Starke, J. Court Stevenson, Lorie Staver, Vincent Turner
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 precipitation, temper
Authors
N.E. Mcintyre, G. Liu, J. Gorzo, C.K. Wright, Glenn R. Guntenspergen, F. Schwartz
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 bird species
Authors
Whitney A. Wiest, Maureen D. Correll, Bruce G. Marcot, Brian J. Olsen, Chris Elphick, Thomas P. Hodgman, Glenn R. Guntenspergen, W. Gregory Shriver
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 resulting
Authors
Karen M. Thorne, Glen M. MacDonald, Glenn R. Guntenspergen, Richard F. Ambrose, Kevin Buffington, Bruce D. Dugger, Chase M. Freeman, Christopher Janousek, Lauren N. Brown, Jordan A. Rosencranz, James Homquist, John P. Smol, Kathryn Hargan, John Y. Takekawa
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 construct a sal
Authors
Jessica L. Nagel, Hilary A. Neckles, Glenn R. Guntenspergen, Erika N. Rocks, Donald Schoolmaster, James B. Grace, Dennis E. Skidds, Sara Stevens
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 L. Kirwan, Stijn Temmerman, Glenn R. Guntenspergen, Sergio Fagherazzi
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 experimental m
Authors
Christopher Janousek, Kevin Buffington, Glenn R. Guntenspergen, Karen M. Thorne, Bruce D. Dugger, John Y. Takekawa
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 down along na
Authors
Jim van Belzen, Johan van de Koppel, Matthew L. Kirwan, Daphne van der Wal, Peter M. J. Herman, Vasilis Dakos, Sonia Kéfi, Marten Scheffer, Glenn R. Guntenspergen, Tjeerd J. Bouma
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 these are nee
Authors
Lennert Schepers, Matthew Kirwan, Glenn R. Guntenspergen, Stijn Temmerman
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 experiments were c
Authors
Brett Werner, John Tracy, W. Carter Johnson, Richard A. Voldseth, Glenn R. Guntenspergen, Bruce Millett
Fine‐resolution conservation planning with limited climate‐change information
Climate‐change induced uncertainties in future spatial patterns of conservation‐related outcomes make it difficult to implement standard conservation‐planning paradigms. A recent study translates Markowitz's risk‐diversification strategy from finance to conservation settings, enabling conservation agents to use this diversification strategy for allocating conservation and restoration investments a
Authors
Payal Shah, Mindy L. Mallory, Amy W. Ando, Glenn R. Guntenspergen
Science and Products
Filter Total Items: 14
No Result Found
Filter Total Items: 119
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 Bay to mi
Authors
Karen M. Thorne, Chase M. Freeman, Jordan A. Rosencranz, Neil K. Ganju, Glenn R. Guntenspergen
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) stations. First
Authors
Donald R. Cahoon, Jennifer H. Olker, Alice G. Yeates, Glenn R. Guntenspergen, James B. Grace, Susan C. Adamowicz, Shimon C. Anisfeld, Andrew H. Baldwin, Nels Barrett, Leah Beckett, Alice Benzecry, Linda K. Blum, David M. Burdick, William Crouch, Marci Cole Ekberg, Sarah Fernald, Kristin Wilson Grimes, Joseph Grzyb, Ellen Kracauer Hartig, Danielle A. Kreeger, Marit Larson, Scott Lerberg, James C. Lynch, Nicole Maher, Martha Maxwell-Doyle, Laura R. Mitchell, Jordan Mora, Victoria O'Neill, Angela Padeletti, Diann J. Prosser, Tracy Quirk, Kenneth B. Raposa, William G. Reay, Drexel Siok, Christopher Snow, Adam Starke, J. Court Stevenson, Lorie Staver, Vincent Turner
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 precipitation, temper
Authors
N.E. Mcintyre, G. Liu, J. Gorzo, C.K. Wright, Glenn R. Guntenspergen, F. Schwartz
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 bird species
Authors
Whitney A. Wiest, Maureen D. Correll, Bruce G. Marcot, Brian J. Olsen, Chris Elphick, Thomas P. Hodgman, Glenn R. Guntenspergen, W. Gregory Shriver
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 resulting
Authors
Karen M. Thorne, Glen M. MacDonald, Glenn R. Guntenspergen, Richard F. Ambrose, Kevin Buffington, Bruce D. Dugger, Chase M. Freeman, Christopher Janousek, Lauren N. Brown, Jordan A. Rosencranz, James Homquist, John P. Smol, Kathryn Hargan, John Y. Takekawa
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 construct a sal
Authors
Jessica L. Nagel, Hilary A. Neckles, Glenn R. Guntenspergen, Erika N. Rocks, Donald Schoolmaster, James B. Grace, Dennis E. Skidds, Sara Stevens
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 L. Kirwan, Stijn Temmerman, Glenn R. Guntenspergen, Sergio Fagherazzi
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 experimental m
Authors
Christopher Janousek, Kevin Buffington, Glenn R. Guntenspergen, Karen M. Thorne, Bruce D. Dugger, John Y. Takekawa
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 down along na
Authors
Jim van Belzen, Johan van de Koppel, Matthew L. Kirwan, Daphne van der Wal, Peter M. J. Herman, Vasilis Dakos, Sonia Kéfi, Marten Scheffer, Glenn R. Guntenspergen, Tjeerd J. Bouma
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 these are nee
Authors
Lennert Schepers, Matthew Kirwan, Glenn R. Guntenspergen, Stijn Temmerman
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 experiments were c
Authors
Brett Werner, John Tracy, W. Carter Johnson, Richard A. Voldseth, Glenn R. Guntenspergen, Bruce Millett
Fine‐resolution conservation planning with limited climate‐change information
Climate‐change induced uncertainties in future spatial patterns of conservation‐related outcomes make it difficult to implement standard conservation‐planning paradigms. A recent study translates Markowitz's risk‐diversification strategy from finance to conservation settings, enabling conservation agents to use this diversification strategy for allocating conservation and restoration investments a
Authors
Payal Shah, Mindy L. Mallory, Amy W. Ando, Glenn R. Guntenspergen