A5060129219- Ecology and Vegetation Dynamics Studies
- Fire effects on ecosystems
- Forest ecology and management
- Forest Ecology and Biodiversity Studies
- Plant Water Relations and Carbon Dynamics
- Forest Management and Policy
- Forest Insect Ecology and Management
- Rangeland and Wildlife Management
- Botany, Ecology, and Taxonomy Studies
- Forest Biomass Utilization and Management
- Ecology and Conservation Studies
- Plant responses to elevated CO2
- Seedling growth and survival studies
- Tree-ring climate responses
- Soil Carbon and Nitrogen Dynamics
- Plant and animal studies
- Horticultural and Viticultural Research
- Coal and Its By-products
- Aeolian processes and effects
- Tree Root and Stability Studies
- Species Distribution and Climate Change
- Bamboo properties and applications
- Plant Physiology and Cultivation Studies
- Powdery Mildew Fungal Diseases
- Allelopathy and phytotoxic interactions
Northern Research Station
2019-2024
US Forest Service
2017-2024
University of Missouri
2022
United States Department of Agriculture
2019-2022
Clemson University
2012-2020
The increase in compounding disturbances, such as “hotter droughts” coupled with insect outbreaks, has significant impacts on the integrity of forested ecosystems and their subsequent management for important ecosystem services multiple-use objectives. In Southern Sierra Nevada, years severe drought have resulted unprecedented tree mortality across this mountainous landscape. Additionally, past land practices, including fire suppression, led to overly stocked, homogenous forest stand...
Abstract Background Ecosystem management, community restoration, and managing for climate resilience have become major priorities of land management in recent decades. For woodlands savannas (i.e., “open forests”), this transition has meant moving fire-deprived, closed-canopy forests to structures compositions characteristic natural communities that are rare today: open-grown, wide-spreading trees, endemic flora fauna associated with frequent, low moderate intensity fires. Open forest...
Chinese tallow is a non-native invasive tree expanding in range and abundance throughout the southern United States. Several biogeographical studies mapping distribution examining key underlying environmental factors relied on U.S. Forest Service Inventory Analysis (FIA) data, representing forestlands at scales of ~2400 ha. However, given that most trees, like tallow, are cosmopolitan dynamic nature, FIA data fails to capture extent severity invasion especially outside areas classified as...
Longleaf pine (Pinus palustris Mill.) seedlings have a morphological "grass stage" that is considered to be an adaptation frequent surface fire regimes. However, can kill longleaf and thus may play important role in regeneration dynamics. We used prescribed burn simulation tool designed treat individual grass stage with controlled delivery of treatments then measured survival growth responses through two growing seasons. Naturally regenerated were randomly selected from three size classes...
Prairie reconstruction has become a common method for reestablishing tallgrass prairie communities in the central United States. With objective of creating plant that approximate remnant (reference) prairies, managers are interested identifying: (1) best methods reconstructing reference community conditions; (2) rate change through time following reconstruction; and (3) species present but missing from reconstructed communities. This information is important development adaptive management...
Biological invasions by woody species in forested ecosystems can have significant impacts on forest management and conservation. We designed tested several options based the physiology of Chinese tallow (Triadica sebifera [L.] Small). Specifically, we four treatments, including mastication, foliar herbicide, fire (MHfolF), mastication herbicide (MHfol), dormant-stem (HdorF), (Hdor), to determine their efficacy reducing density regeneration this highly invasive tree species. Mastication...
Abstract Highly disturbed forests are commonplace throughout the eastern United States and their residing composition structure is reflective of past land use. Management restoration efforts complicated by diverse abundant nonnative invasive plants, including Ailanthus altissima. Verticillium nonalfalfae has been identified as a potential native mycoherbicide option for Ailanthus. To test efficacy on we designed study in highly southern Ohio. At each five sites, monitored symptomology,...
We analyzed national forest inventory data collected from circa 2000–2018 across 37 of the eastern US states to better understand influence health related canopy disturbances on regeneration and recruitment dynamics upland oaks (Quercus). found low levels oak all disturbance types examined but limited evidence any direct effects type population regenerating oaks. The general lack differences in response between caused by harvested or non-disturbed plots do not indicate that were benign,...