Glenn Guntenspergen, Ph.D.
Glenn is a Research Ecologist at the Eastern Ecological Science Center in Laurel, MD.
Science and Products
Filter Total Items: 115
Introduction; Concluding remarks
No abstract available.
Authors
Jari Niemela, Jiirgen Breuste, Thomas Elmqvist, Glenn R. Guntenspergen, Philip James, Nancy McIntyre
Concluding remarks: The way forward for urban ecology
No abstract available.
Authors
J. Niemela, J.H. Breuste, Thomas Elmqvist, Glenn R. Guntenspergen, P. James, N.E. McIntyre
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 models of
Authors
Matthew L. Kirwan, Glenn R. Guntenspergen
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 gradients u
Authors
A.M. Little, G.R. Guntenspergen, T. F. H. Allen
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 sea-level as
Authors
Matthew L. Kirwan, Glenn R. Guntenspergen, Andrea D'Alpaos, James T. Morris, Simon M. Mudd, Stijn Temmerman
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, shortening
Authors
W. Carter Johnson, Brett Werner, Glenn R. Guntenspergen, Richard A. Voldseth, Bruce Millett, David E. Naugle, Mirela Tulbure, Rosemary W.H. Carroll, John Tracy, Craig Olawsky
Climate change, sea-level rise, and coastal wetlands
No abstract available.
Authors
Donald R. Cahoon, G.R. Guntenspergen
Latitudinal trends in Spartina alterniflora productivity and the response of coastal marshes to global change
Marshes worldwide are actively degrading in response to increased sea level rise rates and reduced sediment delivery, though the growth rate of vegetation plays a critical role in determining their stability. We have compiled 56 measurements of above-ground annual productivity for Spartina alterniflora, the dominant macrophyte in North American coastal wetlands. Our compilation indicates a signi
Authors
Matthew L. Kirwan, Glenn R. Guntenspergen, James T. Morris
Climate trends of the North American prairie pothole region 1906-2000
The Prairie Pothole Region (PPR) is unique to North America. Its millions of wetlands and abundant ecosystem goods and services are highly sensitive to wide variations of temperature and precipitation in time and space characteristic of a strongly continental climate. Precipitation and temperature gradients across the PPR are orthogonal to each other. Precipitation nearly triples from west to east
Authors
B. Millett, W.C. Johnson, G. Guntenspergen
Adaptation of farming practices could buffer effects of climate change on northern prairie wetlands
Wetlands of the Prairie Pothole Region of North America are vulnerable to climate change. Adaptation of farming practices to mitigate adverse impacts of climate change on wetland water levels is a potential watershed management option. We chose a modeling approach (WETSIM 3.2) to examine the effects of changes in climate and watershed cover on the water levels of a semi-permanent wetland in easter
Authors
R.A. Voldseth, W.C. Johnson, G.R. Guntenspergen, T. Gilmanov, B.V. Millett
Accelerated sea-level rise ? a response to Craft et al
No abstract available.
Authors
M. L. Kirwan, G.R. Guntenspergen
Anacostia River fringe wetlands restoration project: final report for the five-year monitoring program (2003 through 2007)
The 6-hectare (ha) freshwater tidal Anacostia River Fringe Wetlands (Fringe Wetlands) were reconstructed along the mainstem of the Anacostia River in Washington, DC (Photograph 1, Figure 1) during the summer of 2003. The Fringe Wetlands consist of two separate planting cells. Fringe A, located adjacent to Lower Kingman Island, on the west bank of the Anacostia River, occupies 1.6 ha; Fringe B, loc
Authors
Cairn C. Krafft, Richard S. Hammerschlag, Glenn R. Guntenspergen
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Filter Total Items: 115
Introduction; Concluding remarks
No abstract available.AuthorsJari Niemela, Jiirgen Breuste, Thomas Elmqvist, Glenn R. Guntenspergen, Philip James, Nancy McIntyreConcluding remarks: The way forward for urban ecology
No abstract available.AuthorsJ. Niemela, J.H. Breuste, Thomas Elmqvist, Glenn R. Guntenspergen, P. James, N.E. McIntyreInfluence 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 models ofAuthorsMatthew L. Kirwan, Glenn R. GuntenspergenConceptual 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 gradients uAuthorsA.M. Little, G.R. Guntenspergen, T. F. H. AllenLimits 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 sea-level asAuthorsMatthew L. Kirwan, Glenn R. Guntenspergen, Andrea D'Alpaos, James T. Morris, Simon M. Mudd, Stijn TemmermanPrairie 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, shorteningAuthorsW. Carter Johnson, Brett Werner, Glenn R. Guntenspergen, Richard A. Voldseth, Bruce Millett, David E. Naugle, Mirela Tulbure, Rosemary W.H. Carroll, John Tracy, Craig OlawskyClimate change, sea-level rise, and coastal wetlands
No abstract available.AuthorsDonald R. Cahoon, G.R. GuntenspergenLatitudinal trends in Spartina alterniflora productivity and the response of coastal marshes to global change
Marshes worldwide are actively degrading in response to increased sea level rise rates and reduced sediment delivery, though the growth rate of vegetation plays a critical role in determining their stability. We have compiled 56 measurements of above-ground annual productivity for Spartina alterniflora, the dominant macrophyte in North American coastal wetlands. Our compilation indicates a signiAuthorsMatthew L. Kirwan, Glenn R. Guntenspergen, James T. MorrisClimate trends of the North American prairie pothole region 1906-2000
The Prairie Pothole Region (PPR) is unique to North America. Its millions of wetlands and abundant ecosystem goods and services are highly sensitive to wide variations of temperature and precipitation in time and space characteristic of a strongly continental climate. Precipitation and temperature gradients across the PPR are orthogonal to each other. Precipitation nearly triples from west to eastAuthorsB. Millett, W.C. Johnson, G. GuntenspergenAdaptation of farming practices could buffer effects of climate change on northern prairie wetlands
Wetlands of the Prairie Pothole Region of North America are vulnerable to climate change. Adaptation of farming practices to mitigate adverse impacts of climate change on wetland water levels is a potential watershed management option. We chose a modeling approach (WETSIM 3.2) to examine the effects of changes in climate and watershed cover on the water levels of a semi-permanent wetland in easterAuthorsR.A. Voldseth, W.C. Johnson, G.R. Guntenspergen, T. Gilmanov, B.V. MillettAccelerated sea-level rise ? a response to Craft et al
No abstract available.AuthorsM. L. Kirwan, G.R. GuntenspergenAnacostia River fringe wetlands restoration project: final report for the five-year monitoring program (2003 through 2007)
The 6-hectare (ha) freshwater tidal Anacostia River Fringe Wetlands (Fringe Wetlands) were reconstructed along the mainstem of the Anacostia River in Washington, DC (Photograph 1, Figure 1) during the summer of 2003. The Fringe Wetlands consist of two separate planting cells. Fringe A, located adjacent to Lower Kingman Island, on the west bank of the Anacostia River, occupies 1.6 ha; Fringe B, locAuthorsCairn C. Krafft, Richard S. Hammerschlag, Glenn R. Guntenspergen - News