Glenn Guntenspergen, Ph.D.
Science and Products
Concluding remarks: The way forward for urban ecology
No abstract available.
Niemela, J.; Breuste, J.H.; Elmqvist, T.; Guntenspergen, Glenn R.; James, P.; McIntyre, N.E.; Niemela, J.; Breuste, J.H.; Elmqvist, Thomas; Guntenspergen, Glenn R.; James, P.; McIntyre, N.E. 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...
Kirwan, Matthew L.; Guntenspergen, Glenn R. Climate change, sea-level rise, and coastal wetlands
Cahoon, Donald R.; Guntenspergen, G.R. 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)...
Johnson, W. Carter; Werner, Brett; Guntenspergen, Glenn R.; Voldseth, Richard A.; Millett, Bruce; Naugle, David E.; Tulbure, Mirela; Carroll, Rosemary W.H.; Tracy, John; Olawsky, Craig 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...
Kirwan, Matthew L.; Guntenspergen, Glenn R.; D'Alpaos, Andrea; Morris, James T.; Mudd, Simon M.; Temmerman, Stijn 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)...
Little, A.M.; Guntenspergen, G.R.; Allen, T.F.H. 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...
Krafft, Cairn C.; Hammerschlag, Richard S.; Guntenspergen, Glenn R. Accelerated sea-level rise ? a response to Craft et al
Kirwan, M. L.; Guntenspergen, G.R. 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...
Millett, B.; Johnson, W.C.; Guntenspergen, G. 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...
Kirwan, Matthew L.; Guntenspergen, Glenn R.; Morris, James T. 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...
Voldseth, R.A.; Johnson, W.C.; Guntenspergen, G.R.; Gilmanov, T.; Millett, B.V. Effect of climate fluctuations on long-term vegetation dynamics in Carolina bay wetlands
Carolina bays and similar depression wetlands of the U.S. Southeastern Coastal Plain have hydrologic regimes that are driven primarily by rainfall. Therefore, climate fluctuations such as drought cycles have the potential to shape long-term vegetation dynamics. Models suggest two potential long-term responses to hydrologic fluctuations, either...
Stroh, C.L.; De Steven, D.; Guntenspergen, G.R.