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Abstract

A time series intervention analysis (TSIA) of dendrochronological data to infer the tree growth-climate-disturbance relations and forest disturbance history is described. Maximum likelihood is used to estimate the parameters of a structural time series model with components for climate and forest...

Author(s)
Lee, E. H.; Wickham, C.; Beedlow, P. A.; Waschmann, R. S.; Tingey, D. T.
Publisher
Elsevier GmbH, München, Germany
Citation
Dendrochronologia, 2017, 45, pp 132-144
Abstract

Understanding sedimentation patterns in small coastal watersheds due to landscape perturbations is critical for connecting hillslope and fluvial processes, in addition to managing aquatic habitats for anadromous fish and other aquatic species in the Oregon Coast Range (OCR). Changes in...

Author(s)
Wetherell, L. R.; Ely, L. L.; Roering, J. J.; Walsh, M. K.; Burchfield, M. J.; Nace, K. E.; Wetherell, M. M.; Struble, W. T.
Publisher
Wiley, Chichester, UK
Citation
Earth Surface Processes and Landforms, 2021, 46, 7, pp 1375-1392
Abstract

Bedrock landsliding, including the formation of landslide dams, is a predominant geomorphic process in steep landscapes. Clarifying the importance of hydrologic and seismic mechanisms for triggering deep-seated landslides remains an ongoing effort, and formulation of geomorphic metrics that predict ...

Author(s)
Struble, W. T.; Roering, J. J.; Burns, W. J.; Calhoun, N. C.; Wetherell, L. R.; Black, B. A.
Publisher
Wiley, Hoboken, USA
Citation
Journal of Geophysical Research: Earth Surface, 2021, 126, 4,
Abstract

Large-magnitude earthquakes and hydrologic events in mountainous settings commonly trigger thousands of landslides, and slope failures typically constitute a significant proportion of the damage associated with these events. Large, dormant deep-seated landslides are ubiquitous in the Oregon Coast...

Author(s)
Struble, W. T.; Roering, J. J.; Black, B. A.; Burns, W. J.; Calhoun, N.; Wetherell, L.
Publisher
Geological Society of America, Boulder, USA
Citation
Geological Society of America Bulletin, 2020, 132, 7/8, pp 1775-1791
Abstract

Due to a suite of environmental changes, Oregon white oak (Quercus garryana Douglas ex Hook; called Gary oak in Canada) associated ecosystems at many North American sites are being encroached upon by Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii) and other conifer species....

Author(s)
Gedalof, Z.; Franks, J. A.
Publisher
MDPI AG, Basel, Switzerland
Citation
Forests, 2019, 10, 5, pp 381
Abstract

We reconstruct pandora moth (Coloradia pandora Blake) outbreaks and climate from a 1572-year (435-2006 CE) ponderosa pine (Pinus ponderosa Dougl. ex Laws.) chronology from a lava flow in central Oregon. We took samples from 128 living trees and remnant logs and crossdated the samples using skeleton ...

Author(s)
Clark, P. W.; Speer, J. H.; Winship, L. J.
Publisher
Laboratory of Tree-Ring Research, University of Arizona, Tucson, USA
Citation
Tree-Ring Research, 2017, 73, 2, pp 113-125
Abstract

Dry mixed-conifer forests are widespread in the interior Pacific Northwest, but their historical fire regimes are poorly characterized, in particular the relative mix of low- and high-severity fire. We reconstructed a multi-century history of fire from tree rings in dry mixed-conifer forests in...

Author(s)
Heyerdahl, E. K.; Loehman, R. A.; Falk, D. A.
Publisher
NRC Research Press, Ottawa, Canada
Citation
Canadian Journal of Forest Research, 2019, 49, 1, pp 76-86
Abstract

This study reports the first successful statistical 'crossdating' among many ring width time series from petrified wood, thus providing a replicable continuous annual resolution window into tree growth and environmental influences during the middle Miocene. The petrified samples, of the genus ...

Author(s)
Wright, W. E.; Baisan, C.; Streck, M.; Wright, W. W.; Szejner, P.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Palaeogeography, Palaeoclimatology, Palaeoecology, 2016, 445, pp 38-49
Abstract

We develop a 341-year Oregon white oak (Quercus garryana Dougl.) tree-ring chronology in Oregon's Willamette Valley to evaluate climate-growth relationships and determine the species' dendroclimatological potential at our site and in the surrounding region. The standardized and residual...

Author(s)
Gildehaus, S.; Arabas, K.; Larson, E.; Copes-Gerbitz, K.
Publisher
Laboratory of Tree-Ring Research, University of Arizona, Tucson, USA
Citation
Tree-Ring Research, 2015, 71, 1, pp 13-23
Abstract

Insect outbreaks are often assumed to increase the severity or probability of fire occurrence through increased fuel availability, while fires may in turn alter susceptibility of forests to subsequent insect outbreaks through changes in the spatial distribution of suitable host trees. However,...

Author(s)
Flower, A.; Gavin, D. G.; Heyerdahl, E. K.; Parsons, R. A.; Cohn, G. M.
Publisher
Public Library of Sciences (PLoS), San Francisco, USA
Citation
PLoS ONE, 2014, 9, 12, pp e114282

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