1. Department of Forest Ecology Faculty of Forestry and Wood Sciences Czech University of Life Sciences Prague Praha 6‐Suchdol Czech Republic
2. Department of Wildland Resources and Ecology Center Utah State University Logan UT USA
3. Department of Environmental and Forest Biology State University of New York College of Environmental Science and Forestry Syracuse NY USA
4. Department of Sustainable Resources Management State University of New York College of Environmental Science and Forestry Syracuse NY USA