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Accession: BOT-GCET-2212 Research Theme: Botany (Graduate Thesis Study)
Contributors: Katharine Napora, Victor Thompson
Title: Bald cypress radiocarbon and dendrochronological data from trees located in the Altamaha Wildlife Management Area and on Sapelo Island, Georgia, USA
Abstract: Ancient bald cypress trees buried under anoxic mud on the Altamaha Wildlife Management Area islands were sampled, prepared, radiocarbon dated, and the ringwidths measured for crossdating. Modern bald cypress samples were also obtained from Sapelo Island. Tree rings were measured using a Velmex and Measure J2X software and/or the ObjectJ extension of ImageJ. Measured radii were crossdated using visual dendrochronological methods and Cofecha software. Tree rings anchored to the present date back to 3161 B.C.E. and extend to 2016 C.E. In addition, the oldest two trees provide another 529 years of ringwidth data. This work was conducted under the National Science Foundation Doctoral Dissertation Improvement Award: Human Adaptation to Long Term Environmental Change (Award #1834682). All samples are part of the accessioned collections of the University of Georgia Laboratory's of Archaeology.
DOI: 10.6073/pasta/b028cc4ee3ed0678ab30e0db80dddf34
Key Words: Altamaha River, annual, climate change, forests, long term, ringwidth; radiocarbon dates, Sapelo Island, Taxodium distichum, UGA
LTER Core Area: Population Studies
Research Themes: Botany, Population Ecology
Study Period: 01-Jun-2016 to 10-Apr-2021
Study Sites:
Sapelo -- Sapelo Island, Sapelo Island, Georgia
GA_Coast -- Georgia Coast, Southeast Georgia
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Data Table: BOT-GCET-2212 (Main data table for data set BOT-GCET-2212, 123 records)

Access: Public (released 10-Apr-2023)

Metadata: Text (ESA FLED), XML (Ecological Metadata Language)

Data Formats: Spreadsheet (CSV) [13.69kb],  Text File [14.02kb],  MATLAB (GCE Toolbox) [28.50kb],  MATLAB (Variables) [28.72kb],  Text Report [33.69kb]

Column List:(display)


Text Data file: BOT-GCET-2212_Altamaha-FloatingChron_RingwidthMeasurements (Crossdated tree ring measurements in microns (Tucson compact format))

Access: Public (released 10-Apr-2023)

Metadata: XML (Ecological Metadata Language)

Data Formats: ASCII text [4.74 kb]


Text Data file: BOT-GCET-2212_Altamaha-TreeRingChron_RingwidthMeasurements (Crossdated tree ring measurements in microns (Tucson compact format))

Access: Public (released 10-Apr-2023)

Metadata: XML (Ecological Metadata Language)

Data Formats: ASCII text [231 kb]

Statistics: Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS
Citation: Napora, Katharine. 2022. Bald cypress radiocarbon and dendrochronological data from trees located in the Altamaha Wildlife Management Area and on Sapelo Island, Georgia, USA. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/b028cc4ee3ed0678ab30e0db80dddf34

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This material is based upon work supported by the National Science Foundation under grants OCE-9982133, OCE-0620959, OCE-1237140 and OCE-1832178. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.