A5071124369- Coastal wetland ecosystem dynamics
- Constructed Wetlands for Wastewater Treatment
- Coastal and Marine Dynamics
- Microbial Community Ecology and Physiology
- Plant responses to water stress
- Marine and coastal plant biology
- Protist diversity and phylogeny
- Geological formations and processes
- Isotope Analysis in Ecology
- Wastewater Treatment and Nitrogen Removal
- Land Use and Ecosystem Services
- Geology and Paleoclimatology Research
University of Alabama
2020-2024
Smithsonian Environmental Research Center
2024
Human activities have led to 1–2% of coastal wetlands lost per year globally, with subsequent losses in ecosystem services such as nutrient filtering and carbon sequestration. Wetland construction is used mitigate marsh cover resulting from human impacts areas. Though structure can recover relatively quickly (i.e., <10 years) after construction, there are often long‐term lags the recovery functions constructed marshes. We conducted a year‐long study comparing seasonal plant productivity,...
Abstract Coastal marshes mitigate allochthonous nitrogen (N) inputs to adjacent marine habitat; however, their extent is declining rapidly. As a result, marsh restoration and construction have become major foci of wetland management. Constructed can quickly reach similar plant biomass natural marshes, but biogeochemical functions like N removal retention take decades functional equivalency, often due lags in organic matter (OM) pools development newly constructed marshes. We compared...
Abstract Habitat restoration is commonly used to recover ecosystem services, but due resource constraints, post‐project monitoring often fails fully evaluate the recovery of important functions. Metric‐based indicators use simple‐to‐measure variables assess health and function, thereby providing a time‐ cost‐effective method improve monitoring. We tidal‐marsh data set develop metric‐based recovery. In 2021 2022, we surveyed eight restored/created three natural reference tidal marshes in...
Human activities have decreased global salt marsh surface area with a subsequent loss in the ecosystem functions they provide. The creation of marshes terrestrial systems has been used to mitigate this cover. Although these constructed may rapidly recover structure, biogeochemical processes be slow recover. We compared denitrification and dissimilatory nitrate reduction ammonium (DNRA) rates between 32‐year‐old excavation‐created (CON‐2) nearby natural reference (NAT) assess recovery...
<title>Abstract</title> Anthropogenic<bold> </bold>nitrogen (N) has more than doubled over the last century, with much of this excess N making its way to coastal zone. Coastal marshes remove via denitrification or, conversely, retain and recycle through dissimilatory nitrate reduction ammonium (DNRA). Organic carbon (C) availability are important for determining partitioning these two competing N-reduction pathways. Vegetation inherently links C cycles by uptaking releasing both elements....
Widespread degradation and destruction of coastal wetlands over the last century have spurred on practice creating salt marshes to mitigate losses wetland area ecosystem function. Constructed can quickly recover plant biomass, but biogeochemical functions, like recovery nitrogen removal capacity through denitrification, often take decades centuries recover. One potential mechanism for this uncoupling structural functional is that an impaired microbial community subsequently impedes...