A5041662755- Fire effects on ecosystems
- Plant Water Relations and Carbon Dynamics
- Ecology and Vegetation Dynamics Studies
- Tree-ring climate responses
- Rangeland and Wildlife Management
- Thermochemical Biomass Conversion Processes
- Plant Parasitism and Resistance
- Soil Carbon and Nitrogen Dynamics
- Landslides and related hazards
- Botany, Ecology, and Taxonomy Studies
- Primate Behavior and Ecology
- Spaceflight effects on biology
- Religion, Society, and Development
- Wildlife Ecology and Conservation
- Plant and animal studies
- Lichen and fungal ecology
- Plant Physiology and Cultivation Studies
- Tree Root and Stability Studies
- Forest Ecology and Biodiversity Studies
- Climate variability and models
- Bryophyte Studies and Records
- Growth and nutrition in plants
- Plant Disease Management Techniques
- Mycorrhizal Fungi and Plant Interactions
Tall Timbers Research Station and Land Conservancy
2020-2025
Louisiana State University
2000-2023
Louisiana State University Agricultural Center
2006
University of Florida
2000
Fundación PROINPA
1997
Texas Health Dallas
1963
ABSTRACT As forest fragmentation and intentional burning of grasslands increase, the frequency fires penetrating dry subhumid tropical forests Bolivia is also likely to increase. To expand our understanding role fire in forest, physical thermal properties barks tree species were studied determine their relative resistances cambial damage by fire. For 16 found Lomerío region eastern Bolivia, bark thickness, moisture content, specific gravity measured. Insulating capabilities measured...
Abstract Fire regimes in North American forests are diverse and modern fire records often too short to capture important patterns, trends, feedbacks, drivers of variability. Tree‐ring scars provide valuable perspectives on regimes, including centuries‐long year, season, frequency, severity, size. Here, we introduce the newly compiled tree‐ring fire‐scar network (NAFSN), which contains 2562 sites, >37,000 fire‐scarred trees, covers large parts America. We investigate NAFSN terms geography,...
Tapirs (Tapiridae) are the last representatives of Pleistocene megafauna South and Central America. How they affect ecology plants was examined by studying diversity, abundance, condition seeds defecated lowland tapir ( Tapirus terrestris ) in Amazonian Brazil. Additionally, spatio-temporal pattern seed-rain seed-shadows generated tapirs recorded. Three hundred fifty-six faeces were examined. Eleven per cent found water (n = 41), while 88% located on dry land 315). Of those land, 84% at...
Pyrogenic savannas with a tree-grassland 'matrix' experience frequent fires (i.e. every 1-3 yr). Aboveground responses to have been well studied, but of fungal litter decomposers, which directly affect fuels, remain poorly known. We hypothesized that each fire reorganizes belowground communities and slows decomposition, thereby influencing savanna fuel dynamics. In pine savanna, we established patches near away from pines were either burned or unburned in year. Within patches, assessed...
Abstract Natural fires ignited by lightning strikes following droughts frequently are posited as the ecological mechanism maintaining discontinuous tree cover and grass‐dominated ground layers in savannas. Such fires, however, may not reliably maintain humid We propose that savanna trees producing pyrogenic shed leaves might engineer fire characteristics, affecting ground‐layer plants ways explored our hypothesis a high‐rainfall, burned pine which dominant tree, longleaf ( Pinus palustris ),...
Forty percent of terrestrial ecosystems require recurrent fires driven by feedbacks between fire and plant fuels. The accumulation fine fuels in these play a key role intensity, which alters soil nutrients shapes microbial community responses to fire. Changes post-fire fuel production are well known feed back future fires, but decomposition new is poorly understood. Our study sought quantify how pre-fire loading influenced through abiotic properties, as fungal communities. Prior spring...
Understanding of historical fire seasonality should facilitate development concepts regarding as an ecological and evolutionary process. In tree-ring based fire-history studies, the scars can be classified on position scar within or between growth rings. Cambial phenology studies are needed to precisely relate a fire-scar months year because timing dormancy, earlywood production, latewood production varies by species location. We examined cambial patterns longleaf pine (Pinus palustris...
AbstractFire-plant feedbacks engineer recurrent fires in pyrophilic ecosystems like savannas. The mechanisms sustaining these may be related to plant adaptations that trigger rapid responses fire's effects on soil. Plants adapted for high fire frequencies should quickly regrow, flower, and produce seeds mature rapidly disperse postfire. We hypothesized the offspring of such plants would germinate grow rapidly, responding fire-generated changes soil nutrients biota. conducted an experiment...
Few tree-ring based fire-history studies have been completed in pine ecosystems of the Southeastern Coastal Plain, part because difficulties finding old fire-scarred material. We propose specialized field methods that improve likelihood locating fire scars dead trees (i.e. stumps, snags, and logs). Classic developed southwestern United States involve targeting only with evidence repeated external scarring, but we found this approach to be less effective our region given without any scarring...
The longleaf pine ( Pinus palustris Mill.) and related ecosystem is an icon of the southeastern United States (US). Once covering estimated 37 million ha from Texas to Florida Virginia, near-extirpation of, subsequent restoration efforts for, species has been well-documented over past ca. 100 years. Although one longest-lived tree in US—with documented ages 400 years—its use not reviewed field dendrochronology. In this paper, we review utility tree-ring data within applications four primary,...
Abstract Forty percent of terrestrial ecosystems require recurrent fires engineered by feedbacks between fire and plant fuels. Fuel loads control intensity which alters soil nutrients shapes microbial community responses to fire. Changes post-fire fuel production are well known feed back future fires, but decomposition new fuels is poorly understood. Our study sought quantify how pre-fire loading impacted through abiotic properties, fungal communities. In a longleaf pine savanna, both near...
Forty percent of terrestrial ecosystems require recurrent fires engineered by feedbacks between fire and plant fuels. While effects on individual fuel load associated factors (e.g., nutrients, plants, microbes) are well understood, the belowground systems that contribute to fire-fuel is less clear. We hypothesized pre-fire loading would affect soil conditions fungal communities in a way shapes post-fire decomposition. In longleaf pine savanna, we manipulated plot loads modify heat release...