MODELING CLIMATE AND VEGETATIONAL CHANGE SINCE THE LAST GLACIAL MAXIMUM USING STABLE ISOTOPES AND DIGITAL ANALYSIS
Pennilyn Higgins Florida Museum of Natural History
Gainesville, [email protected]
Isotopes as environmental proxyC – Dietary proxy
C3 vs C4 plants in herbivoresC3 13C lower than C4 13C
O – Climatic proxy18O increases with warmer temperatures18O decreases with high rainfall in warm weather
OutlineAn overabundance of dataGeographical dataUsing the computer to sort it outVisualizing large data setsMaking it look niceReal applications
OutlineAn overabundance of dataGeographical dataUsing the computer to sort it outVisualizing large data setsMaking it look niceReal applications
Data generation
One tooth; how many data points?
Database
OutlineAn overabundance of dataGeographical dataUsing the computer to sort it outVisualizing large data setsMaking it look niceReal applications
Plotting isotopic values against geographical information
Localities sampled
Stacked plots
OutlineAn overabundance of dataGeographical dataUsing the computer to sort it outVisualizing large data setsMaking it look niceReal applications
Database query
Plot and contour the data
Change your data and color scheme.
Look at a specific part of the fauna
…and compare with other species
Liven it up with color
…and get a closer look
OutlineAn overabundance of dataGeographical dataUsing the computer to sort it outVisualizing large data setsMaking it look niceReal applications
Exporting to other formats
Initial diagrams can be pretty ugly…
…but are easy enough to sharpen with other software
Plotting oxygen and carbon
OutlineAn overabundance of dataGeographical dataUsing the computer to sort it outVisualizing large data setsMaking it look niceA real applications
Full Glacial + Glacial Carbon
FG + G Bison and Camelops
FG + G Equus
Full Glacial + Glacial Carbon
Late Glacial Carbon
Late Glacial Carbon
OutlineAn overabundance of dataGeographical dataUsing the computer to sort it outVisualizing large data setsMaking it look niceReal applications
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