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Snags provide critical habitat for nearly one-third of wildlife species in forests of the Pacific Northwest, so historic declines in snags are thought to have had a strong impact on biodiversity. Resource managers often create snags to mitigate the scarcity of snags within managed forests, but information regarding the function and structure of created snags across long time periods (>20 years) is absent from the literature. Using snags that were created by topping mature Douglas-fir trees (Pseudotsuga menziesii) as part of the OSU College of Forestry Integrated Research Project, we measured characteristics of 731 snags and quantified foraging and breeding use of snags by birds 25-27 years after their creation....
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This dataset contains 8 layers showing current and predicted ranges of Douglas fir (Pseudotsuga menziesii). One layer demonstrates range according to current climate conditions averaged from the period 1950-1975. Six layers model predicted ranges according to two different IPCC scenarios according to their Canadian Climate Centre modeling and Analysis (CCCma) third generation general correlation models (CGCM3) A2 and B1, in the years 2020, 2050, and 2080. An 8th layer shows a continuous model of predicted occurrence for the period 1975-2006.
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Post-fire shifts in vegetation composition will have broad ecological impacts. However, information characterizing post-fire recovery patterns and their drivers are lacking over large spatial extents. In this analysis we used Landsat imagery collected when snow cover (SCS) was present, in combination with growing season (GS) imagery, to distinguish evergreen vegetation from deciduous vegetation. We sought to (1) characterize patterns in the rate of post-fire, dual season Normalized Difference Vegetation Index (NDVI) across the region, (2) relate remotely sensed patterns to field-measured patterns of re-vegetation, and (3) identify seasonally-specific drivers of post-fire rates of NDVI recovery. Rates of post-fire...
    map background search result map search result map Modeled frequency and predicted range of douglas fir under various climate scenarios Created snag characteristics and cavity-nesting bird associations in the CFIRP stands, McDonald-Dunn Research Forest, Corvallis, OR, USA, 2016 BLM REA NGB 2011 Douglas fir Climate Change Viability in the NGB 2060 BLM REA NGB 2011 Douglas fir Climate Change Viability in the NGB 2030 BLM REA NGB 2011 Douglas Fir Climate Change Current Viability in the NGB Data release for tracking rates of post-fire conifer regeneration distinct from deciduous vegetation recovery across the western U.S. BLM REA NGB 2011 Douglas fir Climate Change Viability in the NGB 2060 BLM REA NGB 2011 Douglas fir Climate Change Viability in the NGB 2030 BLM REA NGB 2011 Douglas Fir Climate Change Current Viability in the NGB Data release for tracking rates of post-fire conifer regeneration distinct from deciduous vegetation recovery across the western U.S. Modeled frequency and predicted range of douglas fir under various climate scenarios