A5062415945- Australian Indigenous Culture and History
- Atmospheric and Environmental Gas Dynamics
- Paleontology and Stratigraphy of Fossils
- Hydrocarbon exploration and reservoir analysis
- Geology and Paleoclimatology Research
- Ecology and Vegetation Dynamics Studies
- Methane Hydrates and Related Phenomena
- Coastal wetland ecosystem dynamics
- Peatlands and Wetlands Ecology
- Geological and Geophysical Studies
- Geological Studies and Exploration
- Species Distribution and Climate Change
- Metal Extraction and Bioleaching
- Geological and Tectonic Studies in Latin America
- Geochemistry and Geologic Mapping
- Botany and Geology in Latin America and Caribbean
- Mineral Processing and Grinding
- Impact of Light on Environment and Health
- Geological and Geochemical Analysis
- Plant Water Relations and Carbon Dynamics
- Constructed Wetlands for Wastewater Treatment
- Plant and animal studies
- Vehicle emissions and performance
Baylor University
2019-2023
Smithsonian Institution
2023
Wesleyan University
2019
University of Tasmania
1852
The geological record encodes the relationship between climate and atmospheric carbon dioxide (CO 2 ) over long short timescales, as well potential drivers of evolutionary transitions. However, reconstructing CO beyond direct measurements requires use paleoproxies herein lies challenge, proxies differ in their assumptions, degree understanding, even reconstructed values. In this study, we critically evaluated, categorized, integrated available to create a high-fidelity transparently...
The day is not far distant, when according to the ordinary course of nature, last surviving remnant aboriginal inhabitants Tasmania, now maintained at a Government establishment, and little more than dozen in number, must be removed by death, distinct people cease exist. entire extinction population, an isolated strip human family, neither matter every occurrence nor trivial import. When Van Diemen's Land was first occupied Europeans, half century ago, its population spread tribes sub-tribes...
Abstract Currently, there is only one paleo‐CO 2 record from plant macrofossils that has sufficient stratigraphic resolution to potentially capture a transient spike related rapid carbon release at the Cretaceous‐Paleogene (K‐Pg) boundary. Unfortunately, associated measurements of stomatal index are off‐calibration, leading qualitative interpretation >2,300‐ppm CO . Here we reevaluate this with proxy based on leaf gas exchange principles. We also test three living species grown 500‐ and...
I have the honour to report that, in obedience instructions from His Excellency Lieutenant-Governor, recently proceeded Mersey and Don Rivers examine tract of country there on which coal was said been found ; that also devoted a week examination both banks Tamar, Whirlpool Reach downwards, with reference surmise existing there.
Abstract Premise Reconstructing the light environment and architecture of plant canopy from fossil record requires use proxies, such as those derived cell wall undulation, size, carbon isotopes. All approaches assume that taxa will respond predictably to changes in environments. However, most species‐level studies looking at undulation only consider “sun” or “shade” leaves; therefore, we need a fully quantitative taxon‐specific method. Methods We quantified response isotopes Platanus...
Abstract Throughout the Phanerozoic, estimated CO 2 levels from proxies generally correlate well with independent estimates of temperature. However, some proxy atmospheric during Late Cretaceous and early Paleocene are low (<400 ppm), seemingly at odds elevated sea surface Here we evaluate by applying a leaf gas‐exchange model to Platanites leaves four localities San Juan Basin, New Mexico (65.66–64.59 Ma). We first calibrate on two modern Platanus species, occidentalis P. × acerifolia ,...
Wetlands provide myriad ecosystem services, yet the C-cycling of vegetation within interior freshwater tidal wetlands remains poorly understood. To this end, we estimated species'-specific plant carbon-fixation rates for six dominant wetland species in a large temperate Connecticut, USA. We integrated field C-fixation marsh with satellite-derived leaf area index and aerial extent data to: 1) quantify seasonal species-level differences rates; 2) estimate whole-marsh emergent aquatic over...