1. Biology, ecological impact, and management of invasive plants.2. Long-term evaluation of patterns of vegetation recovery following successful suppression of invasive plants.3. Establishing ecological thresholds for managing grassland vegetation, especially in reference to managing prairie dog colonies as habitat for black-footed ferrets.
My research interests focuses on the ecology and management of the vegetation associated with the grasslands, shrublands, woodlands, and forests of the Northern Great Plains. This includes the effects of invasive plants on the ecosystem structure, function, and sustainability, and vegetation management in relation to natural and anthropogenic distubances.
The Northern Great Plains contains some of the largests undisturbed tracts of native grasslands in the United States. These diverse ecosystems provide a wide variety of consumptive and non-consumptive resources. Research is needed to develop the innovative tools and techniques that provide a range of sustainable alternatives consistent with the compromises that are often inherent in simultaneously managing for multiple use.
1. I have published several papers on the ecology and management on probably the most endangered plant community in the Northern Great Plains, the Green-Ash Draw.2. I was heavily involved the National Vegetation Mapping Program in the Northern Great Plains where I worked on team mapping and classifying a wide variety of plant communities.3. I was part of large-scale research and demonstration project funded and administered by the Agricultural Research Service. The Project, called TEAM (The Ecological Area-wide Management) Leafy Spurge evaluated the ecology and management of leafy spurge on a regional basis (ND, SD, WY, and MT).