University of Illinois Urbana-Champaign

Influence of Aridity and Fire on Holocene Vegetational Patterns in the Tallgrass Prairie Peninsula

Nelson, David M.

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https://hdl.handle.net/2142/85358

Description

Title
Influence of Aridity and Fire on Holocene Vegetational Patterns in the Tallgrass Prairie Peninsula
Author(s)
Nelson, David M.
Issue Date
2005
Doctoral Committee Chair(s)
Hu, Feng Sheng
Department of Study
Biology
Discipline
Biology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Paleoecology
Language
eng
Abstract
Because of limitations inherent in delta13C analysis of substrates such as charcoal, new techniques are needed to understand C 3 and C4 grass fluctuations. A method of isolating fossil grass pollen for delta13C analysis was developed, and the delta 13C composition of modern and fossil grass pollen was evaluated. Results suggest that modern pollen from C3 and C4 grass species can be distinguished by delta13C Furthermore, delta 13C analysis of fossil grass pollen indicates that this proxy can provide information on C3 and C4 grass variations unavailable from other proxy indicator.
Graduation Semester
2005
Type of Resource
text
Permalink
http://hdl.handle.net/2142/85358

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