Richard Hallett
Title: Research Ecologist
Unit: Center for Research on Ecosystem Change
Address: Northern Research Station
271 Mast Road
Durham, NH 03824
Phone: 603-868-7657
E-mail: Contact Richard Hallett
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Education
- Ph.D. in Natural Resources, University of New Hampshire, Durham, NH, May 1996
- M.S. in Forestry, University of New Hampshire, Durham, NH, May 1991
- B.S. in Forest Science, University of Wisconsin, Madison, WI, December, 1984
Current Research
My overall goal is to take information gained from plot level studies on forest health, productivity, and ecosystem function and design studies that examine these same issues at a landscape or regional scale. This means being able to work across paradigms, such as individuals and institutions that only trust ground-level data gathered at the tree itself, and those that want to incorporate the most advanced technology to view forests and ecological systems for thousands of miles with no human contact involved. This has been challenging work. To accomplish this shift in scale I work to devise, develop, or modify techniques that allow us to expand our studies spatially while maintaining the necessary scientific rigor. This provides valuable information and new knowledge about the impacts of large scale phenomena such as acid rain, forest decline, and introduced pests and diseases.
Research Objectives
- Characterize the linkage between forest canopy chemistry and stream water chemistry and map forest canopy level cation concentrations using hyperspectral remote sensing technology to map stream water quality across the landscape.
- Discover the link that biogeochemistry has with sugar maple (and co-occurring species) health and growth across the northeastern United States and develop tools or information that can be used to make land management decisions.
- Determine the role of Ca-oxalate in forested ecosystem plant available Ca supply.
- Develop methodologies for utilizing commercially available hyperspectral remote sensing imagery for early detection of invasive insects and diseases in rural and urban forests.
Why is This Important
We live in a changing environment and "scaling" up our understanding of plot level dynamics involved in forest health issues to a landscape scale will allow us to detect forest health issues earlier and design management strategies for maintaining the health of our forests at a regional scale.
Future Research
I am interested in working in urban ecosystems in order to apply remote sensing technology and early stress detection techniques to urban forests. Urban forests are often the first place we see invasive insects which later become problems in our rural forests if they are not contained or controlled (e.g. Asian Longhorn Beetle, Emerald Ash Borer).
Featured Publications
- Long, Robert P.; Horsley, Stephen B.; Hallett, Richard A.; Bailey, Scott W. 2009. Sugar maple growth in relation to nutrition and stress in the northeastern United States. Ecological Applications. 19(6): 1454-1466.
- Hallett, Richard; Pontius, Jennifer; Martin, Mary; Plourde, Lucie. 2008. Evaluating the practical utility of hyperspectral remote sensing imagery: an EAB case study. In: Gottschalk, Kurt W., ed. Proceedings, 18th U.S. Department of Agriculture interagency research forum on gypsy moth and other invasive species 2007; 2007 January 9-12; Annapolis, MD. Gen. Tech. Rep. NRS-P-28. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 33-35.
- Pontius, Jennifer; Martin, Mary; Plourde, Lucie; Hallett, Richard. 2008. Hyperspectral remote sensing for early detection of invasive pests. In: Mastro, Victor; Lance, David; Reardon, Richard; Parra, Gregory, comps. Emerald ash borer research and development meeting; 2007 October 23-24; Pittsburgh, PA. FHTET 2008-07. Morgantown, WV: U.S. Department of Agriculture, Forest Service, Forest Health Technology Enterprise Team: 66.
- Horsley, Stephen B.; Bailey, Scott W.; Ristau, Todd E.; Long, Robert P.; Hallett, Richard A. 2008. Linking environmental gradients, species composition, and vegetation indicators of sugar maple health in the northeastern United States. Canadian Journal of Forest Research. 38: 1761-1774.
- Hallett, Richard; Pontius, Jennifer; Martin, Mary; Plourde, Lucie. 2008. The practical utility of hyperspectral remote sensing for early detection of emerald ash borer. In: Mastro, Victor; Lance, David; Reardon, Richard; Parra, Gregory, comps. Emerald ash borer research and development meeting; 2007 October 23-24; Pittsburgh, PA. FHTET 2008-07. Morgantown, WV: U.S. Department of Agriculture, Forest Service, Forest Health Technology Enterprise Team: 67-68.
Additional
Online Publications
- Hallett, Richard A.; Bailey, Scott W.; Horsley, Stephen B.; Long, Robert P. 2006. Influence of nutrition and stress on sugar maple at a regional scale. Canadian Journal of Forest Research 36(9):2235-2246
- Bailey, S.W.; Horsley, S.B.; Long, R.B.; Hallett, R.A. 2004. Division S-7 - forest & range soils. Influence of edaphic factors on sugar maple nutrition and health on the Allegheny Plateau. Soil Science of America Journal. 68: 243-252
- Smith, Marie-Louise; Ollinger, Scott V.; Martin, Mary E.; Aber, John D.; Hallett, Richard A.; Goodale, Christine L. 2002. Direct estimation of aboveground forest productivity through hyperspectral remote sensing of canopy nitrogen. Ecological Applications. 12(5): 1286-1302.
- Horsley, Stephen B.; Long, Robert P.; Bailey, Scott W.; Hallett, Richard A.; Wargo, Philip M. 2002. Health of eastern North American sugar maple forests and factors affecting decline. Northern Journal of Applied Forestry. 19(2): 34-44.
- Horsley, Stephen B.; Long, Robert P.; Bailey, Scott W.; Hallett, Richard A.; Hall, Thomas J. 1999. Factors contributing to sugar maple decline along topographic gradients on the glaciated and unglaciated Allegheny Plateau. In: Horsley, Stephen B.; Long, Robert P., eds. Sugar maple ecology and health: proceedings of an international symposium; 1998 June 2-4; Warren, PA. Gen. Tech. Rep. NE-261. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station: 60-62.
- Hallett, Richard A.; Horsley, Stephen B.; Long, Robert P.; Bailey, Scott W.; Hall, Thomas J. 1999. Foliar chemistry of sugar maple: a regional view. In: Horsley, Stephen B.; Long, Robert P., eds. Sugar maple ecology and health: proceedings of an international symposium; 1998 June 2-4; Warren, PA. Gen. Tech. Rep. NE-261. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station: 66.
- Bailey, Scott W.; Horsley, Stephen B.; Long, Robert P.; Hallett, Richard A. 1999. Influence of geologic and pedologic factors on health of sugar maple on the Allegheny Plateau. In: Horsley, Stephen B.; Long, Robert P., eds. Sugar maple ecology and health: proceedings of an international symposium; 1998 June 2-4; Warren, PA. Gen. Tech. Rep. NE-261. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station: 63-65.
Last Modified:
02/15/2012