Faculty, Department of Geography, UNCG

Paul A. Knapp, Professor

Ph.D. Georgia, 1989
Biogeography, climatology, dendroecology

Dr. Knapp's academic interests include biogeography, climatology, and dendroecology with a regional focus in the American West. Dr. Knapp's research has focused on examining the influence of atmospheric CO₂ enrichment on the growth rates of woody species in arid and semiarid environments, and the paleoclimatology of the interior Pacific Northwest.
e-mail:paknapp@uncg.edu Click here to view Dr. Knapp's C.V.(PDF document)

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Carolina Tree-Ring Science Laboratory

Recent Publications:

2012	Maxwell, J.T., Soulé P.T., Ortegren, J.T. and Knapp, P.A. Drought-busting tropical cyclones in the southeastern Atlantic United States: 1950–2008.Annals of the Association of American Geographers 102 (X):1-17.
2011	Maxwell, J.T, and P.A. Knapp. Reconstructed Tupelo-Honey Yield in Northwest Florida Inferred from Nyssa Ogeche Tree-Ring Data: 1850–2009. Agriculture, Ecosystems & Environment Forthcoming
2011	Knapp, P.A. and Soulé, P.T. Reconstructing annual area burned in the Northern Rockies, USA: AD 1626-2008. Geophysical Research Letters VOL. 38, L17402, doi: 10.1029/2011GL048119.
2011	Hadley, K.S. and Knapp, P.A. Detection of high-wind events using tree-ring data.Canadian Journal of Forest Research 41:1121–1129.
2011	Soulé, P.T. and Knapp, P.A. Radial growth and increased water-use efficiency for ponderosa pine trees in three regions in the western United States.The Professional Geographer 63(3):1-13.
2011	Ortegren, J.T., Knapp, P.A. Maxwell, J.T., Tyminski, W.P. and Soulé, P.T. Ocean-atmosphere influences on low-frequency warm-season drought variability in the Gulf Coast and Southeastern U.S.A.Journal of Applied Meteorology and Climatology 50:1177–1186
2011	Knapp, P.A. and Hadley, K.S. Lewis and Clarks’ Tempest: The Perfect Storm of November, 1805, Oregon, USA.The Holocene doi: 10.1177/0959683610391319
2011	Knapp, P.A. and Soulé, P.T. Increasing water-use efficiency and age-specific growth responses of old-growth ponderosa pine trees in the Northern Rockies. Global Change Biology 17: 631-641
2008	Knapp, P. A., and Soulé, P.T. Use of atmospheric CO₂-sensitive trees may influence dendroclimatic reconstructions. Geophysical Research Letters 35: L24703 doi:10.1029/2008GL035664.
2008	Soulé, P.T. and Knapp, P.A. Does an August singularity exist in the Northern Rockies of the United States? Journal of Applied Meteorology and Climatology 47:1845-1850
2007	Knapp, P.A., and Soulé, P.T. Trends in midlatitude cyclone frequency and occurrence during fire season in the Northern Rockies: 1900-2004, Geophysical Research Letters 34:L20707 doi:10.1029/2007GL031216.
2007	Soulé, P.T. and Knapp, P.A. Topoedaphic and morphologic complexity of foliar damage and mortality within western juniper (Juniperus occidentalis var. occidentalis) woodlands following an extreme meteorological event. Journal of Biogeography 34:1927-1937.
2006	Soulé, P.T. and Knapp, P.A. Radial growth rate increases in naturally-occurring ponderosa pine trees: a late 20th century CO₂ fertilization effect? New Phytologist 171:379-390.
2005	Knapp, P.A. and Soulé, P.T. Impact of an extreme early season freeze event in the interior Pacific Northwest (October 30th-November 3, 2002) on Western Juniper Woodlands. Journal of Applied Meteorology 44:1152-1158.
2004	Knapp, P.A. Window of opportunity: The climatic conditions of the Lewis and Clark expedition of 1804-1806. Bulletin of the American Meteorological Society 85:1289-1303.
2004	Knapp, P.A., Soulé, P.T., and Grissino-Mayer, H.D. Occurrence of sustained droughts in the interior Pacific Northwest (AD 1733-1980) inferred from tree-ring data. Journal of Climate 17:140-150.
2004	Soulé, P.T., Knapp, P.A., and Grissino-Mayer, H.D. Human agency, environmental drivers, and western juniper establishment history during the late Holocene. Ecological Applications 14:96-112.
2003	Soulé, P.T., Knapp, P.A., and Grissino-Mayer, H.D. Comparative rates of western juniper afforestation in south-central Oregon and the role of anthropogenic disturbance. The Professional Geographer 55:43-55.
2002	Knapp, P.A., Grissino-Mayer, H.D., and Soulé, P.T. Climatic regionalization and the spatio-temporal occurrence of extreme single-year drought events (1500-1998) in the interior Pacific Northwest, USA. Quaternary Research 58:226-233.
2001	Knapp, P.A., Soulé, P.T., and Grissino-Mayer, H.D. Detecting potential regional effects of increased atmospheric CO₂ on growth rates of western juniper. Global Change Biology 7:903-917.
2001	Knapp, P.A., Soulé, P.T., and Grissino Mayer, H.D. Post drought growth responses of western juniper (Juniperus occidentalis var. occidentalis ) in central Oregon. Geophysical Research Letters 28:2657-2660.