Dr. Carrel
Research Interests:
-- Biodiversity of Forest Arthropods


In collaboration with Jan Weaver at Mizzou, I am examining how timber harvest techniques (clear cutting, selective cutting, or no cutting) affect the abundance and species richness of arthropods in leaf litter on the floor of oak forests in the Ozark Region of Missouri.  (Click here to read about "The Invisible Forest"). This is part of the 150-year Missouri Ozark Forest Ecosystem Project (MOFEP) initiated by the Missouri Department of Conservation and other agencies in 1990. Because our sampling methods are quantitative and replicated, unlike most ecological studies of arthropod communities, we might be able to determine robustly how patterns of different species vary in time and space, regardless of treatment effects.  We hope to continue this project for another 15-20 years. Click here to see Jan's website at Mizzou.

Sorting arthropods in alcohol sample.

In collaboration with Ray Semlitsch, I am beginning a similar project on the influence of forestry practices on terrestrial arthropods and pond-breeding amphibians in Missouri.  His group is doing a variety of field studies on the amphibians while we study the macroarthropods in the various treatments that represent the food base.  Our purpose is to determine if there are qualitative and semi-quantitative variations in the food resources of the amphibians that are correlated with changes in amphibian abundance, which might suggest a cause-and-effect relationship or "bottom up control".


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University of Missouri Biological Sciences Dept. Dr. Carrels Home Page