Nitrogen and meadow voles (Microtus pennsylvanicus) : a comparison of two factors controlling biomass on a restored tallgrass prairie
Meserve, Peter L.
Ph.D. (Doctor of Philosophy)
Department of Biological Sciences
Biomass--Illinois; Prairie ecology--Illinois; Microtus pennsylvanicus--Environmental enrichment--Illinois; Nitrogen fertilizers--Environmental aspects--Illinois
The purpose of this experiment was to study the effects of nitrogen and the meadow vole (Microtus pennsylvanicus) on the biomass of a restored northern Illinois tallgrass prairie. Small experimental plots were installed in the field and received one of four treatments: untreated control, fertilizer addition, vole exclusion, or fertilizer addition with vole exclusion. Beginning in 1998, live plant and litter biomass were monitored by the point-contact method for two years. Previous work and theory predicted that nitrogen addition should exert greater effects upon the biomass of the experimental plots than vole exclusion; results for live vegetation biomass supported this hypothesis. However, the results for litter biomass refuted it, suggesting that current models for plant-herbivore interaction may need modification to account for seasonal changes in primary productivity.
Kodani, Christopher H., "Nitrogen and meadow voles (Microtus pennsylvanicus) : a comparison of two factors controlling biomass on a restored tallgrass prairie" (2003). Graduate Research Theses & Dissertations. 4123.
x, 85 pages
Northern Illinois University
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Includes bibliographical references (pages -85)