Nothophaeocryptopus gaeumannii is a common native, endophytic fungus of Douglas-fir foliage, which causes Swiss needle cast, an important foliage disease that is considered a threat to Douglas-fir plantations in Oregon. Disease expression is influenced by fungal fruiting bodies (pseudothecia), which plug the stomata and inhibit gas exchange. We measured foliar retention and the density of pseudothecia occluding stomates across 2- to 5-year-old needles from upper, middle and lower canopy positions of mature trees at three sites in the Oregon Coast Range and two sites in the western Oregon Cascade Mountains. This dataset is associated with the following publication: Shaw, D.C., G. Ritóková, Y. Lan, D.B. Mainwaring, A. Russo, R. Comeleo, S. Navarro, D. Norlander, and B. Smith. Persistence of the Swiss Needle Cast Outbreak in Oregon Coastal Douglas-fir, and New Insights from Research and Monitoring. JOURNAL OF FORESTRY. Society of American Foresters, Bethesda, MD, USA, 119(4): 407-421, (2021).

Swiss needle cast foliar retention metrics. This dataset is associated with the following publication: Lan, Y., D.C. Shaw, E. Lee, and P. Beedlow. Distribution of a foliage disease fungus within canopies of mature Douglas-fir in western Oregon. Frontiers in Forests and Global Change. Frontiers, Lausanne, SWITZERLAND, 5: 743039, (2022).

Leaf wetness was measured continuously in the lower, middle, and upper canopy of one mature and one young Douglas-fir tree at five sites situated along an elevational gradient from west side of Coast Range of Oregon to west side of Cascade Range of Oregon. This dataset is associated with the following publication: Lan, Y., D.C. Shaw, P.A. Beedlow, E. Lee, and R.S. Waschmann. Severity of Swiss needle cast in young and mature Douglas-fir forests in western Oregon, USA. FOREST ECOLOGY AND MANAGEMENT. Elsevier Science Ltd, New York, NY, USA, 442: 79-95, (2019).

Leaf wetness was measured continuously in the lower, middle, and upper canopy of one mature and one young Douglas-fir tree at five sites situated along an elevational gradient from west side of Coast Range of Oregon to west side of Cascade Range of Oregon. This dataset is associated with the following publication: Lan, Y., D.C. Shaw, P.A. Beedlow, E. Lee, and R.S. Waschmann. Severity of Swiss needle cast in young and mature Douglas-fir forests in western Oregon, USA. FOREST ECOLOGY AND MANAGEMENT. Elsevier Science Ltd, New York, NY, USA, 442: 79-95, (2019).

Dendrochronological data for Douglas-fir and western hemlock for sites in western Oregon. This dataset is associated with the following publication: Lee, E., P. Beedlow, R. Waschmann, S. Cline, M. Bollman, C. Wickham, and N. Testa. Tree-ring history of Swiss needle cast impact on Douglas-fir growth in western Oregon: Correlations with climatic variables. Journal of Plant Science and Phytopathology. Heighten Science Publications Inc. (HSPI), East Windsor, CT, USA, 76-87, (2021).

Dendrochronological data for Douglas-fir and western hemlock for sites in western Oregon. This dataset is associated with the following publication: Lee, E., P. Beedlow, R. Waschmann, S. Cline, M. Bollman, C. Wickham, and N. Testa. Tree-ring history of Swiss needle cast impact on Douglas-fir growth in western Oregon: Correlations with climatic variables. Journal of Plant Science and Phytopathology. Heighten Science Publications Inc. (HSPI), East Windsor, CT, USA, 76-87, (2021).

Master chronologies of radial stem growth of Douglas-fir for western Oregon. This dataset is associated with the following publications: Lee, E., P. Beedlow, R. Waschmann, D.T. Tingey, S. Cline, M. Bollman, C. Wickham, and C. Carlile. Regional patterns of increasing Swiss needle cast impacts on Douglas-fir growth with warming temperatures.. Ecology and Evolution. Wiley-Blackwell Publishing, Hoboken, NJ, USA, 7(24): 11167-11196, (2017). Lee, E., C. Wickham, P. Beedlow, R. Waschmann, and D.T. Tingey. A likelihood-based time series modeling approach for application in dendrochronology to examine the growth-climate relations and forest disturbance history. Dendrochronologia. Elsevier, Shannon, IRELAND, 45: 132-144, (2017).

This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Tree Ring. The data include parameters of tree ring with a geographic location of Maine, United States Of America. The time period coverage is from 311 to -36 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.

This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Tree Ring. The data include parameters of tree ring with a geographic location of Oregon, United States Of America. The time period coverage is from 297 to -42 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.

This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Tree Ring. The data include parameters of tree ring with a geographic location of Florida, United States Of America. The time period coverage is from 141 to -67 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.