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Publications
Presentations
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Presentation
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A glacial cycle of geomorphic and paleoenvironmental change at Praia Re Cortico, Portugal.,
Annual Meeting of the International Union for Quaternary Research 2023-07-01
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A new forensic tool establishing source and fate of per- and p0lyfluroalkyl substances (PFAS): Compound-specific isotopic analysis using gas chromatograph-isotope ratio mass spectrometry.,
2023 NC Water Resources Research Institute Annual Conference 2023-03-01
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Multi-proxy stable isotope analyses of late-Holocene precipitation variability and vegetation change at Laguna María Aguilar, Costa Rica.,
the annual meeting of the American Geophysical Union 2022-12-01
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A 4800-year record of vegetation and hydrology from a Belizean savanna.,
Annual Meeting of the Southeastern Division of the American Association of Geographers 2022-11-01
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Stable carbon isotope evidence of prehistoric vegetation change from Laguna Bonillita, Costa Rica.,
Annual Meeting of the Southeastern Division of the American Association of Geographers 2022-11-01
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Stable carbon isotope signatures as indicators of changes in vegetation and historical land use around Rutland Lake, New York.,
Annual Meeting of the Southeastern Division of the American Association of Geographers 2022-11-01
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An 8000-year precipitation record from the Central American dry corridor,
annual meeting of the American Association of Geographers 2022-02-01
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Analysis of compound-specific hydrogen isotopes from lacustrine sediments to establish Holocene precipitation dynamics at Laguna Arancibia, Costa Rica.,
the annual meeting of the American Association of Geographers 2022-02-01
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Compound- specific stable carbon and hydrogen isotope analyses of vegetation and precipitation change in a Belizean pine savanna.,
the annual meeting of the American Association of Geographers 2022-02-01
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Compound-specific stable carbon and hydrogen isotope analyses of vegetation and precipitation change in a Belizean pine savanna,
annual meeting of the American Association of Geographers 2022-02-01
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Geochemical and microfossil records from a late-Holocene sediment core from Laguna Maria Aguilar, Costa Rica.,
the annual meeting of the American Association of Geographers 2022-02-01
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300-year hurricane frequency reconstructions using grain size and δ18O analysis of Elphidium excavatum coeval with tempestites in the Pelican Cays, Belize,
2021 Annual Meeting of the American Geophysical Union 2021-12-01
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Mechanisms of improvement in glucose tolerance after complex carbohydrate meal in type 2 diabetes,
57th Annual Meeting of the European Association for the Study of Diabetes 2021-09-01
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Organic microfossils and stable carbon isotope signatures in a savannah wetland,
53rd Annual Meeting of the AASP-The Palynological Society 2021-08-01
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Pollen and stable carbon isotope analysis at Guayabo de Turrialba and Laguna Azul, Costa Rica,
53rd Annual Meeting of the AASP-The Palynological Society 2021-08-01
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Estimation of glucose turnover using naturally enriched complex carbohydrate meal in type 2 diabetes; comparison with triple tracer meal,
81st Scientific Sessions of the American Diabetes Association 2021-06-01
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7,500 years of environmental change at Clear Pond, South Carolina,
annual meeting of the American Association of Geographers 2021-04-01
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Interpretation of age offsets between alkanes and stratigraphically coeval sediments and macrofossils in lacustrine cores,
annual meeting of the American Association of Geographers 2021-04-01
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Using multiple stable isotopes to assess late Holocene foraging grounds of Adélie penguins in the southern Ross Sea, Antarctica,
12th International Conference on the Applications of Stable Isotope Techniques to Ecological Studies 2020-06-01
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Developing a pollen and charcoal record from Laguna de Felipe in the Dominican Republic,
Discovery Day, University of Tennessee 2020-05-01
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7000 years of environmental change at Clear Pond, South Carolina,
annual meeting of the American Association of Geographers 2020-04-01
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A Late Devonian (Frasnian), low-latitude record of orbital forcing: Magnetic susceptibility reflects a global dust teleconnection, Guilmette Formation, Great Basin, U.S.A.,
meeting of the Society for Sedimentary Geology (SEPM) International Sedimentary Geosciences Congress 2020-04-01
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An 8000-year precipitation record from the Central American Dry Corridor.,
annual meeting of the American Association of Geographers 2020-04-01
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Developing bulk δ13C and δ15N records from lake sediments: can we use the same acid-fumigated sample for both analyses?,
annual meeting of the American Association of Geographers 2020-04-01
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How sample pretreatments affect stable isotope values in lake sediments,
Exhibition of Undergraduate Research and Creative Achievement (EURēCA) 2020-04-01
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Stable carbon and nitrogen isotope ratios in the sediments of Laguna Arancibia, Costa Rica,
Exhibition of Undergraduate Research and Creative Achievement (EURēCA) 2020-04-01
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Vegetation and fire dynamics from a wetland sediment core in the Central Valley, Costa Rica,
annual meeting of the American Association of Geographers 2020-04-01
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Sediment cores from White Pond, South Carolina contain a platinum anomaly, pyrogenic carbon peak, and coprophilous spore decline at 12.8 ka,
annual meeting of the Southeastern Division of the Geological Society of America 2020-03-01
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New Bayesian quantitative paleoenvironmental reconstructions of AD 1700 coastal subsidence along the northern margin of the Cascadia subduction zone,
meeting of the International Union for Quaternary Research 2019-07-01
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A 4,200-year record of fire history from the southern Pacific Costa Rica lowlands,
Annual Meeting of the American Association of Geographers 2019-04-01
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A multiproxy record of paleoenvironmental change from a Belizean pine savanna,
Annual Meeting of the American Association of Geographers 2019-04-01
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A revised chronology of paleohydrology and vegetation change at Laguna Bonillita, Costa Rica.,
Annual Meeting of the American Association of Geographers 2019-04-01
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A spatially-explicit record of prehistoric maize agriculture from compound-specific carbon isotope analysis,
Annual Meeting of the American Association of Geographers 2019-04-01
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Biofuel and Biogenic Contributions of Ethanol in Rainwater in Wilmington determined by compound specific stable carbon isotopes,
NC Breathe 2019 2019-04-01
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Compound-specific stable carbon isotope analysis of vegetation and land-use change at Laguna Los Mangos, Costa Rica.,
Annual Meeting of the American Association of Geographers 2019-04-01
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Implications of biochar addition on plant-microbial interactions and soil respiration,
meeting of the Atlantic Estuarine Research Society 2019-04-01
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New proxy analyses from Laguna Martinez, Costa Rica,
Annual Meeting of the American Association of Geographers 2019-04-01
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Highlights-bioluminescent Mangrove Lagoon, St. Croix, U.S.V.I.,
Annual Meeting of the Association for the Sciences of Limnology and Oceanography 2019-02-01
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Implications of land use practices on coastal ecosystems as determined via geochemical properties in corals of Salt River Bay, St. Croix, USVI.,
Annual Meeting of the American Geophysical Union 2018-12-01
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Differential effects of warming and nitrogen fertilization on soil respiration and microbial dynamics in switchgrass croplands.,
Annual Meeting of the American Geophysical Union 2018-12-01
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Hydrogen isotope analysis of n-alkanes in sediments of Emerald Pond, Abaco Island, The Bahamas.,
Annual Meeting of the Southeastern Division of the American Association of Geographers 2018-11-01
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Sedimentary nitrogen as a proxy for prehistoric forest clearance and site abandonment in southern Pacific Costa Rica,
Annual Meeting of the Southeastern Division of the American Association of Geographers 2018-11-01
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A 10,000 year hydrogen isotope record of precipitation variability form highland Costa Rica.,
Annual Meeting of the American Association of Geographers 2018-04-01
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A high-resolution Holocene fire history from Clear Pond, South Carolina,
Annual Meeting of the American Association of Geographers 2018-04-01
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A stratigraphic multi-proxy covariation test for the cause of the Late Devonian punctata event carbon isotope excursion, Guilmette Formation, eastern Nevada, U.S.A.,
Annual Meeting of the Geological Society of America 2018-04-01
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Compound-specific hydrogen isotope record of precipitation from coastal north Hispaniola,
Annual Meeting of the American Association of Geographers 2018-04-01
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Fire history across the Little Ice Age in southern Pacific Costa Rica,
Annual Meeting of the American Association of Geographers 2018-04-01
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Historical profiles of organic and soot carbon in White Pond, South Carolina,
Southeastern Biogeochemistry Symposium 2018-04-01
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Stable carbon isotope signature of the Late Devonian (Frasnian) Alamo impact: Geologically instantaneous transfer of 13C-enriched carbon from the lithosphere to the dissolved inorganic carbon pool,
Annual Meeting of the Geological Society of America 2018-04-01
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What is the Punctata event? A new high-resolution δ13Ccarb and magnetic susceptibility record of late Devonian (Frasnian) paleo-oceanography from the Great Basin, U.S.A.,
Annual Meeting of the Geological Society of America 2018-04-01
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Compound-Specific Stable Isotope Analysis of Aqueous and Gas Phase Ethanol Using Solid Phase Microextraction,
Joint Ocean Sciences Meeting 2018-02-01
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Compound-specific hydrogen isotope evidence of late Quaternary paleohydrologic change from the Atlantic Coastal Plain, North Carolina, USA,
Annual Meeting of the American Geophysical Union 2017-12-01
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High Relative Abundance of Biofuel Sourced Ethanol in Precipitation in the US and Brazil Determined Using Compound Specific Stable Carbon Isotopes,
American Geophysical Union 2017-12-01
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High relative abundance of biofuel-sourced ethanol in precipitation in the US and Brazil determined using compound-specific stable carbon isotopes,
Annual Meeting of the American Geophysical Union 2017-12-01
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Nitrogen fertilization elevated spatial heterogeneity of soil microbial biomass carbon and nitrogen in switchgrass and gamagrass croplands,
Annual Meeting of the American Geophysical Union 2017-12-01
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Sedimentary geochemical evidence of late-Holocene paleoenvironmental change from Baradères Bay, Haiti,
nnual Meeting of the American Geophysical Union 2017-12-01
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A Pyrogenic Biomarker Characterization of Prehistoric Conifer Combustion in the Atlantic Coastal Plain,
UNCW Center for the Support of Undergraduate Research and Fellowships (CSURF) Research and Creativity Showcase 2017-11-01
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Increasing ethanol consumption as a renewable fuel: How will vehicle ethanol emissions impact the urban atmosphere?,
NADP Fall Meeting 2017-11-01
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Proxy analyses of wetland sediments in Costa Rica,
Annual Meeting of the Southeastern Division of the American Association of Geographers 2017-11-01
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Assessing the utility of δ13C and bulk geochemistry in estuaries along the Cascadia subduction zone for coastal paleoseismology,
Annual Meeting of the Geological Society of America 2017-10-01
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Highlights-Bioluminescent Mangrove Lagoon, St. Croix, USVI.,
University of the Virgin Islands Annual Research Symposium 2017-05-01
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Late Holocene climate variability from St. Croix, USVI reef corals,
Annual Meeting of the Cordilleran Division of the Geological Society of America 2017-05-01
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Palaeolimnological records of climate change in the Central American–Intra-American Seas region over the last 2000 years,
Open Science Meeting of the Past Global Changes Project 2017-05-01
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Reconstructing past environments in Costa Rica through analyses of wetland sediments,
University of Tennessee Discovery Day 2017-05-01
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Pre-Columbian agriculture, fire, and Spanish contact: A 4300-year record from Laguna Los Mangos, Costa Rica,
Annual Meeting of the Association of American Geographers 2017-04-01
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A new sediment record from the Blue Ridge Mountains of North Carolina,
Annual Meeting of the Association of American Geographers 2017-04-01
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Highlights of the bioluminescent Mangrove Lagoon, St Croix, USVI,
University of the Virgin Islands Research Day 2017-04-01
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Holocene vegetation and fire history from Clear Pond, South Carolina,
Annual Meeting of the Association of American Geographers 2017-04-01
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Hydrogen isotope evidence of climatic control on prehistoric agricultural activity in southern Costa Rica,
Annual Meeting of the Association of American Geographers 2017-04-01
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A 1900-year multi-proxy paleoenvironmental reconstruction of Piseco Lake, Adirondack Mountains, New York,
Annual Meeting of the Northeast Division of the Geological Society of America 2017-03-01
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Geochemical analyses of estuarine sediments along the Cascadian subduction zone and their utility in estimating coseismic subsidence,
Annual Meeting of the Southeast Division of the Geological Society of America 2017-03-01
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Compound-specific stable hydrogen isotope (δD) analysis of lake-sediment cores: A key method for reconstructing prehistoric droughts and effects,
XI Congreso de Antropologia 2017-02-01
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Stable carbon isotope ratios in Costa Rican lake sediments as a proxy for forest clearance and crop cultivation,
XI Congreso de Antropologia 2017-02-01
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Leaf wax isotopes from the Carolina bays: Evidence of late Quaternary climate change in the southeastern U.S.,
UNCW Center for the Support of Undergraduate Research and Fellowships (CSURF) Research and Creativity Showcase 2016-11-01
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Compound-specific –combustion-GC-IRMS determination of Ethanol in precipitation: Impact of biofuel.,
Southeastern Regional Meeting of the American Chemical Society (SERMACS) meeting 2016-10-01
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Radiocarbon ages of southern Appalachian deposits show low accumulation during the middle Holocene. ,
Annual Meeting of the Geological Society of America 2016-09-01
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A 4000-year record of paleoenvironmental change and agriculture intensification from Laguna Los Mangos in southern Pacific Costa Rica,
nnual Meeting of the Association of American Geographers 2016-03-01
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Late Holocene fires in Costa Rica: Patterns and drivers.,
Annual Meeting of the Association of American Geographers 2016-03-01
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Molecular and isotopic proxies of Holocene hydrology and paleoenvironmental change at Praia Rei Cortico, Portugal.,
Annual Meeting of the Association of American Geographers 2016-03-01
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Precipitation variability over the past 2500 years at Laguna Bonillita, Costa Rica,
Annual Meeting of the Association of American Geographers 2016-03-01
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Investigating the utility of foraminiferal isotope proxies for sea-level variability in the Buenos Aires province, Argentina,
Annual Meeting of the Geological Society of America 2015-11-01
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Evaluation of magnetic microspherules and elemental data from pre-Younger Dryas to recent age deposits at Squires Ridge (31ED365), Tar River, North Carolina.,
annual Southeastern Archaeological Conference 2015-11-01
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A late-Holocene sedimentary record of hurricane landfalls, climate change, and fire from seasonally-dry tropical forests in southwestern Dominican Republic.,
Meeting of the International Limnogeology Congress 2015-06-01
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Archaeological freshwater mussel shells as a paleoclimate proxy in middle Tennessee: potentials and limitations,
Annual Meeting of the Association of American Geographers 2015-04-01
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Late Holocene paleoenvironments and human-environment interactions from southern pacific Costa Rica: Two new records.,
Annual Meeting of the Association of American Geographers 2015-04-01
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A new Late Triassic (Norian) marine stable isotope record from western Idaho: A previously unrecognized global OAE?,
Annual Meeting of the Southeast Division of the Geological Society of America 2015-03-01
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Decadal variations in Western Pacific Warm Pool dynamics as evidenced by Porites coral from Chuuk Atoll, Federated States of Micronesia,
Annual Meeting of the American Geophysical Union 2014-12-01
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Compound-specific hydrogen isotope evidence of the Terminal Classic Drought from Hispaniola and potential impacts on Caribbean societies,
Annual Meeting of the Geological Society of America 2014-10-01
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Investigating the utility of isotopic proxies for sea-level variability in the South Atlantic Ocean,
Annual Meeting of the Geological Society of America 2014-10-01
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Multi-proxy evidence of late Quaternary paleoenvironmental change in the southeastern United States from two Carolina bays in North Carolina: 1. Pollen and microscopic charcoal,
Annual Meeting of the Geological Society of America 2014-10-01
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Multi-proxy evidence of late Quaternary paleoenvironmental change in the southeastern United States from two Carolina bays in North Carolina: 2. Stable isotopes and macroscopic charcoal.,
Annual Meeting of the Geological Society of America 2014-10-01
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Decadal variations in Western Pacific Warm Pool dynamics evidenced by corals from Chuuk Atoll, Federated States of Micronesia.,
Ocean-Human-Climate and Ocean Resources Forum (US-Korea Conference) 2014-08-01
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A paleolimnological record of environmental change and bioluminescence from Laguna Grande, Puerto Rico,
Annual Meeting of the Association of American Geographers 2012-02-01
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Mineralization of organic matter with warming in boreal forest soils is influenced by nitrogen dynamics,
Annual Meeting of the American Geophysical Union 2011-12-05
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Compound-specific Hydrogen Isotope Variability in Sediments of the Highest Lake in Costa Rica,
Department of Geology Symposium Series 2011-09-01
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Nitrogen as a mediator of soil organic matter decomposition in a changing climate: Linking stable isotopes, organic geochemistry, and microbial ecology.,
Annual Meeting of the Ecological Society of America 2011-08-07
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The Little Ice Age In The Circum-Caribbean: Just How 'Little' Was It and Why Should We Care?,
Sigma XI Research Symposium 2011-04-19
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7600 Cal Yr Environmental Record from Laguna Tortuguero, Puerto Rico,
Annual Meeting of the Association of American Geographers 2011-04-01
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Linking Aquatic and Terrestrial Biogeochemistry to Assess the Impact of Climate Warming on Boreal Carbon Reservoirs,
Humber River Basin Project Meeting 2011-02-02
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Linking biogeochemical time scales to understand boreal soil responses to climate change,
Humber River Basin Project Meeting 2011-02-02
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Warming Enhanced Microbial Mineralization of Slow-Turnover Soil Organic Matter Along a Boreal Forest Transect,
Annual Meeting of the Ecological Society of America 2011-01-01
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CPMAS 13CNMR of Freshwater Dissolved Organic Matter from Multiple Watersheds within the Humber River Basin,
Humber River Basin Project Meeting 2010-02-01
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Developing Watershed-Scale Indicators for Boreal Forest Soil Organic Matter Change with Climate Warming,
Humber River Basin Project Meeting 2010-02-01
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Boreal Stream Dissolved Organic Matter Composition Among Contrasting Subcatchments in a Large Newfoundland Watershed,
Summer Meeting othe Americal Society of Limnology and Oceanography 2010-01-01
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The Impact of Nutrient Enrichment on the Use of 13C-Labeled Substrates by Epilithic Biofilms in Headwater Streams,
Summer Meeting of the American Society of Limnology and Oceanography 2010-01-01
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Warming, Nitrogen Availability and Site Variation Interact to Govern Soil Microbial Substrate Choice and CO2 Release Along a Boreal Forest Transect,
Annual Meeting of the American Geophysical Union 2010-01-01
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Educational Outreach on Pollen and Other Proxy Indicators in Sediment Records of Environmental Change,
Annual Meetong of hte Association of the AASP-The Palynological Society 2009-01-01
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Paleoecology of an Endemism Hotspot: Evidence from Poza and Masrsh Sediments of Cuatrocienegas, Mexico,
Internation Biogeography Society Meeting 2009-01-01
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Refining the Spatial Scale of Lacustrine Proxies of Maize Cultivation,
Annual Meeting of the Association of American Geographers 2009-01-01
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Sedimentary Evidence of Increased Aridity in the Mid-Elevations of the Dominican Republic During the Little Ice Age,
Annual Meeting of the Association of American Geographers 2009-01-01
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Sedimentary Evidence of Shifting Paleoceanographic Conditions During the Late Holocene from the LaHave Basin,
Annual Meeting of the Association of American Geographers 2009-01-01
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The Importance of Prehistoric Maize Cultivation in the Interior of Hispaniola,
Annual Meeting of the Association of American Geographers 2008-01-01
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Lake Sediments as Archives of Spatially Varying Terrestrial Carbon Production: A High Resolution Test Using Surface Sediments from a Small Farm Pond in West Tennessee,
Annual Meeting of the Association of American Geographers 2007-01-01
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Paleoecological Reconstruction of Early Agriculture and Landscape Change in Costa Rica and the Dominican Republic: Approaches to Improve Spatial Resolution,
Annual Meeting of the Society of American Archaeology 2007-01-01
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Paleolimnological Evidence of Late-Holocene Precipitiation Variability in the Dominican Republic and its Possible Impacts on Prehistoric Human Populations,
Annual Meeting of the Association of American Geographers 2007-01-01
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The Modern Distributions and Paleolimnological Significance of Ostracod and Charophyte Fossils in the Lakes of Las Lagunas, Dominican Republic,
Annual Meeting of the Association of American Geographers 2007-01-01
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A Multi-Proxy Record of Paleoenvironmental Change in the Dominican Republic from Two Small Mid-Elevation Lakes,
Annual Meeting of the Association of American Geographers 2006-01-01
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High Resolution Analyses of Sediment Characteristics, Delta13Csom Values, and Microfossils in Late Holocene Sediments from Laguna Castilla, Dominican Republic,
Annual Meeting of the Geological Society of America 2006-01-01
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Searching for Pine Stomata in Circum-Caribbean Lake Sediments,
Annual Meeting of the Association of American Geographers 2006-01-01
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The Isotopic Impact of Prehistoric Maize Agriculture on Lacustrine Sedimentary Archives of Vegetation Change,
Annual Meeting of the Southeastern Division of the Geological Society of America 2006-01-01
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Preliminary Multi-Proxy Evidence of Paleoenvironmental Change int he Mid-Elevations of the Cordillera Central, Dominican Republic,
Annual Meeting of the Association of American Geographers 2005-01-01
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Reassessment of Prehistoric Human Impacts at Laguna Bonillita, Costa Rica, Using Stable Carbon Isotopes,
Annual Meeting of the Association of American Geographers 2004-01-01
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A New Controlled Method for Making Reference Charcoal in the Laboratory,
Annual Meeting of the Southeastern Division of the Association of American Geographers 2003-01-01
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Stable Carbon Isotopes in Sediments as Indicators of Prehistoric Forest Clearance in Costa Rica,
Annual Meeting of the Association of American Geographers 2003-01-01
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Paleoecological Significance of Stable Carbon Isotopes in Lake Sediments from the Paramo of Costa Rica,
Annual Meeting of the Geological Society of America 2002-01-01
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Holocene Climate and Vegetation Change in Rocky Mountain National Park,
Annual Meeting of the Association of American Geographers 2001-01-01
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Biogeochemical Proxies of Paleoenvironmental Change,
Undergraduate Research Symposium 2000-01-01
Research
Research Overview
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Quaternary Environmental History, Stable Isotope Geochemistry, Biogeography, Paleoclimatology, Biogeochemistry, Circum-Caribbean Region, Prehistoric Human-Environment Interactions, Rapid Climate Change, Vegetation Dynamics
Principal Investigator On
Co-principal Investigator On
Investigator On
Teaching
Teaching Overview
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Weather and Climate, Physical Geography, Paleoclimatology, Paleoenvironmental Reconstruction, Stable Isotope Geochemistry, Prehistoric Human-Environment Interactions, Global Climate Change
