Susan B Fleck

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The relative shade tolerance of T. cordata , F. sylvatica , and C. betulus in mature stands is based on different species-specific carbon and nitrogen allocation patterns. The leaf morphology and photosynthetic capacity of trees are remarkably plastic in response to intra-canopy light gradients. While most studies examined seedlings, it is not well(More)
Terrestrial lidar measurements with the Leica HDS 4500 laserscanner (Imager 5003 from Z+F) were executed in a structurally highly diverse, at least 200-year-old natural 11-species forest with typical characteristics of an old growth forest in order to assess the species-specific differences of tree canopy structures growing in a forest stand. Accuracy of(More)
We update or extend data presented by Herrero (1985). Injury rates were low, 1980-1985. The highest rates were 317,700 and 328,645 park visitors per injury inflicted by black or grizzly bear in Kluane and Denali National Parks. Injury rates calculated against number of backcountry user nights were significantly higher for all parks where injuries occurred,(More)
The Centers for Medicare & Medicaid Services has implemented 3 prevention interventions programs to bring diabetes self-management education to vulnerable populations via Medicare's Quality Improvement Organizations. The programs and the lessons derived from a Federal initiative geared to closing the health disparities gap are described.
The continuous or intermittent use of natural gas in place of oil or coal in existing utility boilers would reduce emissions of sulfur and thereby the concentration of sulfate ions in precipitation. This report examines the technological feasibility and capital cost of retrofitting oil and coal fired utility boilers to burn intermittently natural gas and(More)
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