A5026976614- Fire effects on ecosystems
- Plant Water Relations and Carbon Dynamics
- Ecology and Vegetation Dynamics Studies
- Peatlands and Wetlands Ecology
- Soil Carbon and Nitrogen Dynamics
- Atmospheric and Environmental Gas Dynamics
- Rangeland and Wildlife Management
- Climate variability and models
- Soil and Water Nutrient Dynamics
- Plant and animal studies
- Forest Management and Policy
- Forest ecology and management
- Soil erosion and sediment transport
- Conservation, Ecology, Wildlife Education
- Forest Ecology and Biodiversity Studies
- Plant Ecology and Soil Science
- Species Distribution and Climate Change
- Hydrology and Watershed Management Studies
- Mycorrhizal Fungi and Plant Interactions
- Crop Yield and Soil Fertility
- Land Use and Ecosystem Services
- Bioenergy crop production and management
- Coastal wetland ecosystem dynamics
- Hydrology and Drought Analysis
- thermodynamics and calorimetric analyses
University of Waterloo
2018-2023
University at Buffalo, State University of New York
2020-2023
New York State Energy Research and Development Authority
2022
Duke University
2013-2017
Durham Technical Community College
2017
Agricultural Research Service
2011
Litter quality and soil environmental conditions are well-studied drivers influencing decomposition rates, but the role played by disturbance legacy, such as fire history, in mediating these is not well understood. Fire history may impact directly, through changes that microbial function, or indirectly, shifts plant community composition litter chemistry. Here, we compared early-stage rates across longleaf pine forest blocks managed with varying frequencies (annual burns, triennial...
Boreal wetlands are at risk of degradation from anthropogenic activities including oil sands energy extraction. Despite efforts to monitor the impacts extraction-related on wetland ecology, few studies examine diverse human development types plant communities. Here, we sought quantify effects in Athabasca, Peace River, and Cold Lake Oil Sands Regions Alberta, Canada, its impact community composition. Across region, found that total related mining were both low; ~80% study area was...
Abstract. Many ecosystems experience drastic changes to soil nutrient availability associated with fire, but the magnitude and duration of these are highly variable among vegetation fire types. In pyrogenic pine savannas across southeastern United States, pulses inorganic nitrogen (N) occur in tandem ecosystem-scale losses from prescribed burns. Despite importance this management tool for restoring maintaining fire-dependent plant communities, contributions different mechanisms underlying...
Abstract Questions Disturbances can cause fluctuations in resource availability that influence plant performance. In systems with such dynamics, inter‐specific differences capture may promote co‐existence by partitioning competition between periods of high or low availability. Such use strategy have been described the Plant Economics Spectrum, which hypothesizes functions related to and processing should co‐vary be predicted from traits. pyrogenic systems, fires are associated short‐term...
Abstract. Climatic extreme events are expected to occur more frequently in the future, increasing likelihood of unprecedented climate extremes (UCEs) or record-breaking events. UCEs, such as heatwaves and droughts, substantially affect ecosystem stability carbon cycling by plant mortality delaying recovery. Quantitative knowledge effects is limited due paucity experiments focusing on climatic beyond range historical experience. Here, we present a road map how dynamic vegetation demographic...
Abstract Boreal peatlands provide numerous ecosystem services ranging from carbon sequestration to the provisioning of habitat for species integral Indigenous communities. In Oil Sands Region Alberta, Canada, human development related oil and gas extraction occurs in a wetland-dominated landscape. Wetland monitoring programs can determine extent which impacts wetlands, but existing focus on characterizing biodiversity across region compliance regulatory that assumes sands do not extend past...
Plant metabolic acclimation to thermal stress remains underrepresented in current global climate models. Gaps exist our understanding of how processes (i.e., photosynthesis, respiration) acclimate over time and aboveground versus belowground differs. We measured the Populus trichocarpa, comparing physiology time. Ninety genetically identical ramets were propagated mesocosms that separated root microbial components. After establishment at 25°C for 6 weeks, 60 clones warmed +4 or +8°C...
Abstract. Climatic extreme events are expected to occur more frequently in the future, increasing likelihood of unprecedented climate extremes (UCEs), or record-breaking events. UCEs, such as heatwaves and droughts, substantially affect ecosystem stability carbon cycling by plant mortality delaying recovery. Quantitative knowledge effects is limited due paucity experiments focusing on climatic beyond range historical experience. Here, we use two dynamic vegetation demographic models (VDMs),...
Biological indicators are commonly used to evaluate ecosystem condition. However, their use is often constrained by the availability of information with which assign species-specific indicator values, reflect species' responses environmental conditions being evaluated indicator. As these driven underlying traits, and trait data for numerous species available in publicly accessible databases, one possible approach approximating missing bioindicator values through traits. We Floristic Quality...
Wetland restoration in the Prairie Pothole Region (PPR) often involves soil removal to enhance water storage volume and/or remove seedbanks of invasive species. Consequences could include loss organic carbon (SOC), which is important ecosystem functions such as water-holding capacity and nutrient retention needed for plant re-establishment. We used watershed position surface flow pathways classify wetlands into headwater or network systems address two questions relevant (C) cycling wetland...
Abstract. Many ecosystems experience drastic changes to soil nutrient availability associated with fire, but the magnitude and duration of these are highly variable among vegetation fire types. In pyrogenic pine savannas across south eastern United States, pulses inorganic nitrogen (N) occur in tandem ecosystem-scale losses from prescribed burns. Despite importance this management tool for restoring maintaining fire-dependent plant communities, contributions different mechanisms underlying...
Burned Sites B1 B2 B3