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
Anticipated effects of development on habitat fragmentation and movement of mammals into and out of the Schoodic District, Acadia National Park, Maine Anticipated effects of development on habitat fragmentation and movement of mammals into and out of the Schoodic District, Acadia National Park, Maine
Most national parks interact with adjacent lands because their boundaries fail to encompass all regional habitats, species pools, and migration routes. Activities planned for adjacent lands can have adverse effects on park resources and visitor experiences. For example, fragmentation of adjacent habitat into smaller and more isolated remnants may influence the suitability of park habitat...
Authors
Jason J. Rohweder, Nathan De Jager, Glenn Guntenspergen
Feedbacks between inundation, root production, and shoot growth in a rapidly submerging brackish marsh Feedbacks between inundation, root production, and shoot growth in a rapidly submerging brackish marsh
1. Ecogeomorphic feedbacks between mineral sediment deposition and above-ground plant growth are thought to have dominated the evolution of many coastal ecosystems and landforms. However, land-use-related reductions in sediment delivery rates to estuaries world-wide suggest that these above-ground feedbacks may not apply in some of the world's most vulnerable coastal landscapes. 2. To...
Authors
Matthew L. Kirwan, Glenn Guntenspergen
Numerical models of salt marsh evolution: ecological, geomorphic, and climatic factors Numerical models of salt marsh evolution: ecological, geomorphic, and climatic factors
Salt marshes are delicate landforms at the boundary between the sea and land. These ecosystems support a diverse biota that modifies the erosive characteristics of the substrate and mediates sediment transport processes. Here we present a broad overview of recent numerical models that quantify the formation and evolution of salt marshes under different physical and ecological drivers. In
Authors
Sergio Fagherazzi, Matthew L. Kirwan, Simon Mudd, Glenn Guntenspergen, Stijn Temmerman, Andrea D’Alpaos, Johan van de Koppel, John Rybczyk, Enrique Reyes, Chris Craft, Jonathan Clough
Numerical models of salt marsh evolution: Ecological, geomorphic, and climatic factors Numerical models of salt marsh evolution: Ecological, geomorphic, and climatic factors
Salt marshes are delicate landforms at the boundary between the sea and land. These ecosystems support a diverse biota that modifies the erosive characteristics of the substrate and mediates sediment transport processes. Here we present a broad overview of recent numerical models that quantify the formation and evolution of salt marshes under different physical and ecological drivers. In
Authors
S. Fagherazzi, M. Kirwan, S.M. Mudd, G.R. Guntenspergen, S. Temmerman, A. D'Alpaos, J. Van De Koppel, J.M. Rybczyk, E. Reyes, C. Craft, J. Clough
Concluding remarks: The way forward for urban ecology Concluding remarks: The way forward for urban ecology
No abstract available.
Authors
J. Niemela, J.H. Breuste, Thomas Elmqvist, Glenn Guntenspergen, P. James, N.E. McIntyre
Introduction; Concluding remarks Introduction; Concluding remarks
No abstract available.
Authors
Jari Niemela, Jiirgen Breuste, Thomas Elmqvist, Glenn Guntenspergen, Philip James, Nancy McIntyre
The greenhouse gas flux and potential global warming feedbacks of a northern macrotidal and microtidal salt marsh The greenhouse gas flux and potential global warming feedbacks of a northern macrotidal and microtidal salt marsh
Conversion of wetlands by drainage for agriculture or other anthropogenic activities could have a negative or positive feedback to global warming (GWF). We suggest that a major predictor of the GWF is salinity of the wetland soil (a proxy for available sulfate), a factor often ignored in other studies. We assess the radiative balance of two northern salt marshes with average soil...
Authors
Gail Chmura, Lisa Kellman, Glenn Guntenspergen
Influence of tidal range on the stability of coastal marshland Influence of tidal range on the stability of coastal marshland
Early comparisons between rates of vertical accretion and sea level rise across marshes in different tidal ranges inspired a paradigm that marshes in high tidal range environments are more resilient to sea level rise than marshes in low tidal range environments. We use field‐based observations to propose a relationship between vegetation growth and tidal range and to adapt two numerical...
Authors
Matthew L. Kirwan, Glenn Guntenspergen
Climate change, sea-level rise, and coastal wetlands Climate change, sea-level rise, and coastal wetlands
No abstract available.
Authors
Donald Cahoon, G.R. Guntenspergen
Prairie wetland complexes as landscape functional units in a changing climate Prairie wetland complexes as landscape functional units in a changing climate
The wetland complex is the functional ecological unit of the prairie pothole region (PPR) of central North America. Diverse complexes of wetlands contribute high spatial and temporal environmental heterogeneity, productivity, and biodiversity to these glaciated prairie landscapes. Climatewarming simulations using the new model WETLANDSCAPE (WLS) project major reductions in water volume...
Authors
W. Carter Johnson, Brett Werner, Glenn Guntenspergen, Richard Voldseth, Bruce Millett, David Naugle, Mirela Tulbure, Rosemary Carroll, John Tracy, Craig Olawsky
Limits on the adaptability of coastal marshes to rising sea level Limits on the adaptability of coastal marshes to rising sea level
Assumptions of a static landscape inspire predictions that about half of the world's coastal wetlands will submerge during this century in response to sea-level acceleration. In contrast, we use simulations from five numerical models to quantify the conditions under which ecogeomorphic feedbacks allow coastal wetlands to adapt to projected changes in sea level. In contrast to previous...
Authors
Matthew L. Kirwan, Glenn Guntenspergen, Andrea D’Alpaos, James Morris, Simon Mudd, Stijn Temmerman
Conceptual hierarchical modeling to describe wetland plant community organization Conceptual hierarchical modeling to describe wetland plant community organization
Using multivariate analysis, we created a hierarchical modeling process that describes how differently-scaled environmental factors interact to affect wetland-scale plant community organization in a system of small, isolated wetlands on Mount Desert Island, Maine. We followed the procedure: 1) delineate wetland groups using cluster analysis, 2) identify differently scaled environmental...
Authors
A.M. Little, G.R. Guntenspergen, T. Allen
Science and Products
Filter Total Items: 19
No Result Found
Filter Total Items: 132
Anticipated effects of development on habitat fragmentation and movement of mammals into and out of the Schoodic District, Acadia National Park, Maine Anticipated effects of development on habitat fragmentation and movement of mammals into and out of the Schoodic District, Acadia National Park, Maine
Most national parks interact with adjacent lands because their boundaries fail to encompass all regional habitats, species pools, and migration routes. Activities planned for adjacent lands can have adverse effects on park resources and visitor experiences. For example, fragmentation of adjacent habitat into smaller and more isolated remnants may influence the suitability of park habitat...
Authors
Jason J. Rohweder, Nathan De Jager, Glenn Guntenspergen
Feedbacks between inundation, root production, and shoot growth in a rapidly submerging brackish marsh Feedbacks between inundation, root production, and shoot growth in a rapidly submerging brackish marsh
1. Ecogeomorphic feedbacks between mineral sediment deposition and above-ground plant growth are thought to have dominated the evolution of many coastal ecosystems and landforms. However, land-use-related reductions in sediment delivery rates to estuaries world-wide suggest that these above-ground feedbacks may not apply in some of the world's most vulnerable coastal landscapes. 2. To...
Authors
Matthew L. Kirwan, Glenn Guntenspergen
Numerical models of salt marsh evolution: ecological, geomorphic, and climatic factors Numerical models of salt marsh evolution: ecological, geomorphic, and climatic factors
Salt marshes are delicate landforms at the boundary between the sea and land. These ecosystems support a diverse biota that modifies the erosive characteristics of the substrate and mediates sediment transport processes. Here we present a broad overview of recent numerical models that quantify the formation and evolution of salt marshes under different physical and ecological drivers. In
Authors
Sergio Fagherazzi, Matthew L. Kirwan, Simon Mudd, Glenn Guntenspergen, Stijn Temmerman, Andrea D’Alpaos, Johan van de Koppel, John Rybczyk, Enrique Reyes, Chris Craft, Jonathan Clough
Numerical models of salt marsh evolution: Ecological, geomorphic, and climatic factors Numerical models of salt marsh evolution: Ecological, geomorphic, and climatic factors
Salt marshes are delicate landforms at the boundary between the sea and land. These ecosystems support a diverse biota that modifies the erosive characteristics of the substrate and mediates sediment transport processes. Here we present a broad overview of recent numerical models that quantify the formation and evolution of salt marshes under different physical and ecological drivers. In
Authors
S. Fagherazzi, M. Kirwan, S.M. Mudd, G.R. Guntenspergen, S. Temmerman, A. D'Alpaos, J. Van De Koppel, J.M. Rybczyk, E. Reyes, C. Craft, J. Clough
Concluding remarks: The way forward for urban ecology Concluding remarks: The way forward for urban ecology
No abstract available.
Authors
J. Niemela, J.H. Breuste, Thomas Elmqvist, Glenn Guntenspergen, P. James, N.E. McIntyre
Introduction; Concluding remarks Introduction; Concluding remarks
No abstract available.
Authors
Jari Niemela, Jiirgen Breuste, Thomas Elmqvist, Glenn Guntenspergen, Philip James, Nancy McIntyre
The greenhouse gas flux and potential global warming feedbacks of a northern macrotidal and microtidal salt marsh The greenhouse gas flux and potential global warming feedbacks of a northern macrotidal and microtidal salt marsh
Conversion of wetlands by drainage for agriculture or other anthropogenic activities could have a negative or positive feedback to global warming (GWF). We suggest that a major predictor of the GWF is salinity of the wetland soil (a proxy for available sulfate), a factor often ignored in other studies. We assess the radiative balance of two northern salt marshes with average soil...
Authors
Gail Chmura, Lisa Kellman, Glenn Guntenspergen
Influence of tidal range on the stability of coastal marshland Influence of tidal range on the stability of coastal marshland
Early comparisons between rates of vertical accretion and sea level rise across marshes in different tidal ranges inspired a paradigm that marshes in high tidal range environments are more resilient to sea level rise than marshes in low tidal range environments. We use field‐based observations to propose a relationship between vegetation growth and tidal range and to adapt two numerical...
Authors
Matthew L. Kirwan, Glenn Guntenspergen
Climate change, sea-level rise, and coastal wetlands Climate change, sea-level rise, and coastal wetlands
No abstract available.
Authors
Donald Cahoon, G.R. Guntenspergen
Prairie wetland complexes as landscape functional units in a changing climate Prairie wetland complexes as landscape functional units in a changing climate
The wetland complex is the functional ecological unit of the prairie pothole region (PPR) of central North America. Diverse complexes of wetlands contribute high spatial and temporal environmental heterogeneity, productivity, and biodiversity to these glaciated prairie landscapes. Climatewarming simulations using the new model WETLANDSCAPE (WLS) project major reductions in water volume...
Authors
W. Carter Johnson, Brett Werner, Glenn Guntenspergen, Richard Voldseth, Bruce Millett, David Naugle, Mirela Tulbure, Rosemary Carroll, John Tracy, Craig Olawsky
Limits on the adaptability of coastal marshes to rising sea level Limits on the adaptability of coastal marshes to rising sea level
Assumptions of a static landscape inspire predictions that about half of the world's coastal wetlands will submerge during this century in response to sea-level acceleration. In contrast, we use simulations from five numerical models to quantify the conditions under which ecogeomorphic feedbacks allow coastal wetlands to adapt to projected changes in sea level. In contrast to previous...
Authors
Matthew L. Kirwan, Glenn Guntenspergen, Andrea D’Alpaos, James Morris, Simon Mudd, Stijn Temmerman
Conceptual hierarchical modeling to describe wetland plant community organization Conceptual hierarchical modeling to describe wetland plant community organization
Using multivariate analysis, we created a hierarchical modeling process that describes how differently-scaled environmental factors interact to affect wetland-scale plant community organization in a system of small, isolated wetlands on Mount Desert Island, Maine. We followed the procedure: 1) delineate wetland groups using cluster analysis, 2) identify differently scaled environmental...
Authors
A.M. Little, G.R. Guntenspergen, T. Allen