Open Access. Powered by Scholars. Published by Universities.®
Terrestrial and Aquatic Ecology Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Terrestrial and Aquatic Ecology
Scalability And Performance Tradeoffs In Quantifying Relationships Between Elevation And Tidal Wetland Plant Communities, James R. Holmquist, Lisa Schile-Beers, Kevin Buffington, Meng Lu, Thomas J. Mozdzer, Jefferson Riera, Donald E. Weller, Meghan Williams, J Patrick Megonigal
Scalability And Performance Tradeoffs In Quantifying Relationships Between Elevation And Tidal Wetland Plant Communities, James R. Holmquist, Lisa Schile-Beers, Kevin Buffington, Meng Lu, Thomas J. Mozdzer, Jefferson Riera, Donald E. Weller, Meghan Williams, J Patrick Megonigal
Biology Faculty Research and Scholarship
Elevation is a major driver of plant ecology and sediment dynamics in tidal wetlands, so accurate and precise spatial data are essential for assessing wetland vulnerability to sea-level rise and making forecasts. We performed survey-grade elevation and vegetation surveys of the Global Change Research Wetland, a brackish microtidal wetland in the Chesapeake Bay estuary, Maryland (USA), to both intercompare unbiased digital elevation model (DEM) creation techniques and to describe niche partitioning of several common tidal wetland plant species. We identified a tradeoff between scalability and performance in creating unbiased DEMs, with more data-intensive methods such as kriging performing better than …
Seedling Survival Declines With Increasing Conspecific Density In A Common Temperate Tree, Fiona V. Jevon, Sydne Record, John Grady, Ashley K. Lang, David A. Orwig, Matthew P. Ayres, Jaclyn H. Matthes
Seedling Survival Declines With Increasing Conspecific Density In A Common Temperate Tree, Fiona V. Jevon, Sydne Record, John Grady, Ashley K. Lang, David A. Orwig, Matthew P. Ayres, Jaclyn H. Matthes
Biology Faculty Research and Scholarship
Feedbacks between plants and their soil microbial communities often drive negative density dependence in rare, tropical tree species, but their importance to common, temperate trees remains unclear. Additionally, whether negative density dependence is driven by natural enemies (e.g., soil pathogens) or by high densities of seedlings has rarely been assessed. Density dependence may also depend on seedling size, as smaller and/or younger seedlings may be more susceptible to mortality agents. We monitored seedlings of Quercus rubra, a common, canopy‐dominant temperate tree, to investigate how the density of neighboring adults and seedlings influenced their survival over two years. We assessed …