1. Univ. of Michigan Biological StationPellstonMI49769
2. Univ. of MichiganDep. of Ecology and Evolutionary BiologyAnn ArborMI48109
3. Alberta Environment and ParksCalgaryABCA T2E 7L7
4. Oregon State Univ. Forest Engineering, Resources and ManagementCorvallisOR97330
5. USDA‐Forest Service Northern Research StationHoughtonMI49931
6. INSTAAR Univ. of Colorado BoulderBoulderCO80303
7. National Ecological Observatory NetworkBoulderCO80301
8. Virginia TechDep. of Forest Resources and Environmental ConservationBlacksburgVA24061