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Richard Jagels
Title: Professor of Forest Biology
Degrees:
- B.S. SUNY, Syracuse, 1962, Wood Anatomy
- M.S. SUNY, Syracuse, 1965, Forest Pathology
- Ph.D. University of Illinois, 1968, Structural Botany
Address: 128 Nutting Hall
Telephone: (207) 581-2884
E-mail: richard.jagels@maine.edu
Current Research Interests:
Investigating the biomechanics of tree stems, tree ecophysiology, including paleoecophysiology, and reactions of plants to environmental stress. Currently studying the mechanisms that permitted dawn redwood (Metasequoia) to adapt, 45 million years ago, to a warm, continuous-light environment of the high arctic. Also examining hydraulic and environmental constraints on tree height, and plastic deformation in trees.
Selected Publications:
Equiza, M.A., M.E. Day, R. Jagels and X. Li. 2006. Photosynthetic downregulation in the conifer Metasequoia glyptostroboides growing under continuous light: the signficance of carbohydrate sinks and paleoecophysiological implications. Can. J. Bot. 84: 1453-1461.
Jagels, R. 2006. Management of wood properties in planted forests: a paradigm for global forest production. In: Planted Forests and Trees Working Papers, Forestry Dept., FAO-UN, working paper FP/36/E. pp 1-31 Rome, Italy.
Equiza, M.A., M.E. Day and R. Jagels. 2006. Physiological responses of three deciduous conifers (Metasequoia glyptostroboides, Taxodium distichum and Larix laricina) to continuous-light: adaptive implications for the early Tertiary polar summer. Tree Physiology 26:353-364.
Jagels, R. and G.E. Visscher. 2006. A synchronous increase in hydraulic conductive capacity and mechanical support in conifers with relatively uniform xylem structure. Amer. J. Botany 93(2): 179-187.
Jagels, R., G.E. Visscher, and E.A. Wheeler. 2005. An Eocene high arctic Angiosperm wood. IAWA Jour. 26(3): 387-392.
Jagels, R. and M.A. Equiza. 2005. Competitive advantages of Metasequoia in warm high latitudes. In: LePage, B., C. Williams, H. Yang [eds] The Geobiology and Ecology of Metasequoia. Dordrecht: Kluwer Academic. pp 333-350.
Jagels, R. and M.A. Day. 2004. The adaptive physiology of Metasequoia to Eocene high-latitudes. In: Hemsley, A.R., Poole, I. [eds] The Evolution of Plant Physiology: from Whole Plants to Ecosystems. London, Elsevier. pp 401-425.
Jagels, R., G.E. Visscher, J. Lucas and B. Goodell. 2003. Palaeo-adaptive properties of Metasequoia: mechanical/hydraulic compomises. Annals of Botany 92: 79-88.
Jagels, R. and M. Day. 2003. The adaptive physiology of Metasequoia to Eocene high-latitude environment. In: Hemsley, A. and Poole, I. (eds.) Evolution of Plant Physiology, Elsevier, London.
Jagels, R., M. Jiang, S. Marden and J. Carlisle. 2002. Red spruce canopy response to acid fog exposure. Atmospheric Research 64: 169-178.
Jiang, M. and R. Jagels. 1999. Detection and quantification of changes in membrane-associated calcium in red spruce saplings exposed to acid fog. Tree Physiology 19:909-916.
Jagels, R. 1991. Biophysical aspects of fog deposition on the needles of three conifers. J. Exp. Bot. 42:757-763.
Graduate Courses Taught:
