|Southeastern Section - 57th Annual Meeting (10–11 April 2008)|
|Paper No. 15-9|
|Presentation Time: 1:30 PM-5:30 PM|
PLIOCENE-PLEISTOCENE TEMPERATURE TRENDS IN FLORIDA USING DIVERSITY OF FOSSIL MAMMALS
RUEZ, Dennis R., Geology and Geography, Auburn University, 210 Petrie Hall, Auburn, AL 36849, email@example.com|
Correlations between taxonomic diversity of modern mammals and climatic variables were established using datasets generated from ecoregion maps. Predictive equations from the statistically significant correlations were used to estimate temperature values for Pliocene and Pleistocene fossil sites in Florida. The estimated climatic variables were then compared to independent assessments of paleotemperatures.
The Neogene record of fossil mammals is represented better in Florida than any other North American region east of the Mississippi. However, both absolute temperature predictions and temperature trends from these predictive equations give unexpected results, including mean annual temperature estimates of below freezing. The strong relationships between modern mammalian diversity and current climate may not be applicable in the understanding of paleoecosystems. Unfortunately, uncertainties in chronologic placement of Florida's fossil localities and potential species-specific biases in accumulation impede more complete assessment of the fidelity of modern ecosystems to reflect past trends. For now, for paleoecology, it appears that the key to the past might not actually be the present.
Southeastern Section - 57th Annual Meeting (10–11 April 2008)
General Information for this Meeting
|Session No. 15--Booth# 9|
Paleontology and Paleoclimatology (Posters)
Hilton Charlotte University Place: University Lake Ballroom Suites A, B, C
1:30 PM-5:30 PM, Thursday, 10 April 2008
Geological Society of America Abstracts with Programs, Vol. 40, No. 4, p. 23
© Copyright 2008 The Geological Society of America (GSA), all rights reserved. Permission is hereby granted to the author(s) of this abstract to reproduce and distribute it freely, for noncommercial purposes. Permission is hereby granted to any individual scientist to download a single copy of this electronic file and reproduce up to 20 paper copies for noncommercial purposes advancing science and education, including classroom use, providing all reproductions include the complete content shown here, including the author information. All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions.