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Using tree rings to learn about past fire activity in longleaf pine ecosystems
Using tree rings to learn about past fire activity in longleaf pine ecosystems
We are using remnant wood collected from stumps and snags (standing dead trees) to understand past fire activity at numerous sites in the southeastern U.S., with a focus on longleaf pine ecosystems. Fire scars found in the tree rings can be used to determine the year and season of past fires. These histories typically extend for 200-400 years.
Examining how warming temperatures affect longleaf pine and wiregrass regeneration
Examining how warming temperatures affect longleaf pine and wiregrass regeneration
We have installed a field experiment at Ev-Henwood Preserve in Brunswick County, North Carolina. The experiment uses open-top chambers to apply a warming treatment to seedlings of wiregrass and longleaf pine. The warmed treatment plots will be compared to control plots to assess how increased temperatures associated with climate change will affect the seedling stage of both plant species in a frequently burned landscape.
An exploration of past fire and stand-age structure in the Green Swamp
An exploration of past fire and stand-age structure in the Green Swamp
We are using tree-ring data paired with GIS data to examine stand age structure and historical fire activity in the Green Swamp. Our study compares pocosins dominated by pond pine to adjacent savannas dominated by longleaf pine.
Ghost forest formation following saltwater intrusion along the Cape Fear River
Ghost forest formation following saltwater intrusion along the Cape Fear River
We have implemented a paired proxy study using tree rings and microfossils in sediments to better understand the process of how saltwater intrusion drives ghost forest formation in freshwater forested tidal swamps dominated by bald cypress. The study is focused on the Cape Fear River and it's tributaries, in and around Wilmington, North Carolina. We are also using sensors to monitor current salinity and water levels.
Cambial phenology of longleaf pine informs fire seasonality studies
Cambial phenology of longleaf pine informs fire seasonality studies
We are examining patterns of growth and dormancy in longleaf pine in North Carolina and Florida. We are using dendrometer bands paired with punch cores (miniature tree cores) to determine growth rates associated with different times of year. Our research will capture the time period associated with both the earlywood-latewood transition and the dormancy period. This research will help inform interpretation of seasonality of fire-scar data.
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