Michael Tweiten          

matweiten@wisc.edu

I am studying for my doctoral degree in the Botany Department here in Madison, Wisconsin. Previously I studied the recovering vegetation on Mt. St. Helens, WA; plant community responses to prescribed burning in Northern Arizona; and did vegetation surveys in Arizona for the SW Regional GAP vegetation mapping program. Now I support myself by teaching introductory Botany, Ecology and through research in pollen and charcoal analysis.  I am looking into the possible interaction between jack pine trees, population outbreaks of caterpillars that feed on them, and wild fire during different periods of climatic change and variability.

 

Below are links to some resources I am developing to help.

 

 

Pollen of the North Woods

 

Head Capsule Descriptions of Budworm and Leafroller Caterpillars

 

Forest Hollow Surface Pollen- Vegetation Database

 

Ambrosia- Agriculture Dating of Recent Forest Hollow Sediments