- Coastal wetland ecosystem dynamics
- Microbial Community Ecology and Physiology
- Peatlands and Wetlands Ecology
- Gut microbiota and health
- Soil Carbon and Nitrogen Dynamics
- Soil and Water Nutrient Dynamics
- Ecology and Vegetation Dynamics Studies
- Amphibian and Reptile Biology
- Insect symbiosis and bacterial influences
- Wastewater Treatment and Nitrogen Removal
- Constructed Wetlands for Wastewater Treatment
- Fire effects on ecosystems
- Legume Nitrogen Fixing Symbiosis
- Fish Ecology and Management Studies
- Groundwater and Isotope Geochemistry
- Species Distribution and Climate Change
- Hydrology and Watershed Management Studies
- Evolution and Genetic Dynamics
- Plant responses to elevated CO2
- Epigenetics and DNA Methylation
- Environmental DNA in Biodiversity Studies
- Botany and Plant Ecology Studies
- Land Use and Ecosystem Services
- Neuroendocrine regulation and behavior
- Groundwater flow and contamination studies
East Carolina University
2014-2025
Division of Undergraduate Education
2022
House of Representatives
2022
Agroécologie
2022
Ecologie Microbienne Lyon
2022
Ecology and Ecosystem Health
2022
Salisbury University
2022
John Wiley & Sons (United States)
2020
Indiana University Bloomington
2014-2020
Ecological Society of America
2020
Abstract Microbiomes can aid in the protection of hosts from infection and disease, but mechanisms underpinning these functions complex environmental systems remain unresolved. Soils contain microbiomes that influence plant performance, including their susceptibility to disease. For example, some soil microorganisms produce antimicrobial compounds suppress growth pathogens, which provide benefits for sustainable agricultural management. Evidence shows crop rotations increase fertility tend...
ABSTRACT Wetland mitigation is implemented to replace ecosystem functions provided by wetlands; however, restoration efforts frequently fail establish equivalent levels of services. Delivery microbially mediated functions, such as denitrification, influenced both the structure and activity microbial community. The objective this study was compare relationship between soil vegetation factors community function in restored reference wetlands within a bank. Microbial composition assessed using...
Abstract Rescue effects arise when ecological and evolutionary processes restore positive intrinsic growth rates in populations that are at risk of going extinct. have traditionally focused on the roles immigration, phenotypic plasticity, gene flow, adaptation. However, species interactions also critical for understanding how respond to environmental change. In particular, fitness plant animal hosts is strongly influenced by symbiotic associations with bacteria, archaea, microeukaryotes...
Abstract The movement of organisms across habitat boundaries has important consequences for populations, communities, and ecosystems. However, because most species are not well adapted to all types, dispersal into suboptimal habitats could induce physiological changes associated with persistence strategies that influence community assembly. For example, high rates cross‐boundary thought maintain sink populations terrestrial bacteria in aquatic habitats, but these may also persist by lowering...
Disturbances fundamentally alter ecosystem functions, yet predicting their impacts remains a key scientific challenge. While the study of disturbances is ubiquitous across many ecological disciplines, there no agreed-upon, cross-disciplinary foundation for discussing or quantifying complexity disturbances, and consistent terminology methodologies exist. This inconsistency presents an increasingly urgent challenge due to accelerating global change threat interacting that can destabilize...
Ecological restoration often involves only the manipulation of abiotic factors at local scale. However, processes external to a site determine range conditions within site, constraining level progress that can be achieved by on-site manipulations. We examined relationship landscape and explanatory variables plant species composition in 28 restored wetlands Illinois, USA. Using constrained ordination combined with variation partitioning, we determined independent joint effects three spatially...
In nutrient-limited conditions, plants rely on rhizosphere microbial members to facilitate nutrient acquisition, and in return, provide carbon resources these root-associated microorganisms. However, atmospheric deposition can affect plant-microbe relationships by changing soil bacterial composition reducing cooperation between taxa plants. To examine how long-term addition shapes community composition, we compared traits associated with (fast-growing copiotrophs, slow-growing oligotrophs) plant (C
OPINION article Front. Microbiol., 20 April 2018 | https://doi.org/10.3389/fmicb.2018.00748
Every seed germinating in soils, wastewater treatment, and stream confluence exemplify microbial community coalescence-the blending of previously isolated communities. Here, we present theoretical experimental knowledge on how separated communities mix, with particular focus managed ecosystems. We adopt the coalescence framework, which integrates metacommunity theory meta-ecosystem dynamics, highlight prevalence these events within systems. Specifically, (i) describe fundamental types...
Abstract Salinization and eutrophication are nearly ubiquitous in watersheds with human activity. Despite the known impacts of freshwater salinization syndrome (FSS) to organisms, we demonstrate a pronounced knowledge gap on how FSS alters wetland biogeochemistry. Most experiments assessing biogeochemistry pertain coastal saltwater intrusion. The few inland studies mostly add salt as sodium chloride. Sodium chloride alone does not reflect ionic composition salinization, which derives from...
Coastal wetlands can store carbon by sequestering more through primary production than they release though biogenic greenhouse gas production. The joint effects of saltwater intrusion and sea level rise (SWISLR) changing precipitation patterns alter sulfate oxygen availability, challenging estimates emissions. Iron-rich soils have been shown to buffer soil sulfidization sulfide into iron-sulfide. But as SWISLR increases concentrations, produced via reduction will likely exceed the buffering...
Vulnerability of natural communities to invasion by non‐native plants has been linked factors such as recent disturbance and high resource availability, suggesting that recently restored habitats may be especially invasible. Because can interfere with restoration goals, monitoring programs should anticipate which sites are most susceptible species likely become problematic at a site. Restored larger area those rates propagule input have higher richness both natives non‐natives, leading...
Abstract Background Extensive drainage of peatlands in the southeastern United States coastal plain for purposes agriculture and timber harvesting has led to large releases soil carbon as dioxide (CO 2 ) due enhanced peat decomposition. Growth mechanisms that provide financial incentives reducing emissions from land use land-use change could increase funding hydrological restoration reduces CO these ecosystems. Measuring respiration physical drivers across a range site characteristics...
Climate change is a complex problem involving nonlinearities and feedback that operate across scales. No single discipline or way of thinking can effectively address the climate crisis.
We investigated patterns in denitrifier and NH3-oxidizer community structure function along environmental gradients midwestern USA wetlands. Denitrifier functional groups have contrasting sensitivities to O2 levels other soil factors. Thus, variable tolerance among within can result a range of microbial responses the same gradient. compared structure–function relationships 2 restored wetlands Illinois natural Michigan. At each site, we established 4 transects perpendicular shore placed plots...