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Full-Text Articles in Life Sciences
Enhancing Assessments Of Blue Carbon Stocks In Marsh Soils Using Bayesian Mixed-Effects Modeling With Spatial Autocorrelation — Proof Of Concept Using Proxy Data, Grace S. Chiu, Molly Mitchell, Julie Herman, Christian Longo, Kate Davis
Enhancing Assessments Of Blue Carbon Stocks In Marsh Soils Using Bayesian Mixed-Effects Modeling With Spatial Autocorrelation — Proof Of Concept Using Proxy Data, Grace S. Chiu, Molly Mitchell, Julie Herman, Christian Longo, Kate Davis
VIMS Articles
Our paper showcases the potential gain in scientific insights about blue carbon stocks (or total organic carbon) when additional rigor, in the form of a spatial autocorrelation component, is formally incorporated into the statistical model for assessing the variability in carbon stocks. Organic carbon stored in marsh soils, or blue carbon (BC), is important for sequestering carbon from the atmosphere. The potential for marshes to store carbon dioxide, mitigating anthropogenic contributions to the atmosphere, makes them a critical conservation target, but efforts have been hampered by the current lack of robust methods for assessing the variability of BC stocks at …
Changes In Plant Communities Of Low-Salinity Tidal Marshes In Response To Sea-Level Riselow-Salinity Tidal Marshes In Response To Sea-Level Rise, Abbey Humphreys, Adrianna L. Gorsky, Donna M. Bilkovic, Randolph M. Chambers
Changes In Plant Communities Of Low-Salinity Tidal Marshes In Response To Sea-Level Riselow-Salinity Tidal Marshes In Response To Sea-Level Rise, Abbey Humphreys, Adrianna L. Gorsky, Donna M. Bilkovic, Randolph M. Chambers
VIMS Articles
As sea-level rises, low-salinity tidal marshes experience greater flooding with more saline water. In the Chesapeake Bay estuary, we compared the 1980 and 2014 tidal marsh inventories (TMIs) of plant communities from James City County, Virginia, USA, with respect to the spatial distribution of two species—the invasive reed Phragmites australis and native salt marsh grass Spartina alterniflora–plus overall species richness. Since the 1980 TMI, the total area of low-salinity tidal marshes in which P. australis occurred increased from 0.46 km2 to 6.30 km2 in 2014. Between TMIs, however, the total area of low-salinity marshes occupied by …
A Multi-Scale Approach For Simulating Tidal Marsh Evolution, Karinna Nunez, Yinglong J. Zhang, Julie Herman, W. G. Reay, Carl Hershner
A Multi-Scale Approach For Simulating Tidal Marsh Evolution, Karinna Nunez, Yinglong J. Zhang, Julie Herman, W. G. Reay, Carl Hershner
VIMS Articles
This study presents a new approach to modeling marsh evolution. The Tidal Marsh Model (TMM) has been developed as a module within the SCHISM (Semi-implicit Cross-scale Hydroscience Integrated System Model) framework. Some unique features of the TMM are dynamic rates, cross-scale simulations, and incorporation of anthropogenic stressors, which allow it to overcome many limitations that current marsh models possess. To evaluate model performance, the TMM was applied in Carter Creek and Taskinas Creek within the York River system (Virginia, USA). We assessed model outputs against field observations focusing on two main aspects: marsh boundary evolution and distribution of marsh sediments. …
Effects Of Terrestrial–Aquatic Connectivity On An Estuarine Turtle, Robert Isdell, Randolph M. Chambers, Donna M. Bilkovic, Matthias Leu
Effects Of Terrestrial–Aquatic Connectivity On An Estuarine Turtle, Robert Isdell, Randolph M. Chambers, Donna M. Bilkovic, Matthias Leu
VIMS Articles
Estuaries world-wide have been modified or fragmented due to human stressors in their terrestrial and aquatic components. Estuary fragmentation often results in reductions in species richness, diversity and connectivity. Effects of human modification on estuaries have been well studied, but less is known about how land use alters connectivity of the terrestrial–aquatic ecotone. We studied the relationship between terrestrial–aquatic connectivity and the distri- bution of an estuarine turtle, diamondback terrapin (Malaclemys terrapin).