1. Department of Ecology and Evolutionary Biology University of Connecticut Storrs 06269
2. Smithsonian Environmental Research Center Edgewater 21037
3. Forest Service U.S. Department of Agriculture Northern Research Station Burlington 05405
4. CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences Mengla 666303 Yunnan China
5. Department of Biological Sciences University of Notre Dame Notre Dame 46556