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These maps are a digital representation of the individual tree species range maps of the Atlas of the United States Trees by Elbert L. Little, Jr. The atlas shows the natural distribution or range of the native tree species of North America. These coverages represent 3 volumes of the atlas.
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The dataset contains 3 maps that show the current and predicted range of Lodgepole pine (Pinus contorta) in the Pacific Northwest region. The layers include: 1) the species range modeled under current climate conditions for 1950-75 2) a continuous model of the predicted range for 1950-2006 and 3) potential range expansion and contraction from 2000-2009.
Droughts and insect outbreaks are primary disturbance processes linking climate change to tree mortality in western North America. Refugia from these disturbances—locations where impacts are less severe relative to the surrounding landscape—may be priorities for conservation, restoration, and monitoring. In this study, hypotheses concerning physical and biological processes supporting refugia were investigated by modelling the landscape controls on disturbance refugia that were identified using remotely sensed vegetation indicators. Refugia were identified at 30-m resolution using anomalies of Landsat-derived Normalized Difference Moisture Index in lodgepole and whitebark pine forests in southern Oregon, USA, in...


map background search result map search result map Current and predicted range of Lodgepole Pine under climate change in the Pacific Northwest Lodgepole pine (Pinus contorta) extent, North America BLM REA NGB 2011 Lodgepole pine Climate Change Current Viability in the NGB BLM REA NGB 2011 Lodgepole pine Climate Change Current Viability in the NGB Lodgepole pine (Pinus contorta) extent, North America Current and predicted range of Lodgepole Pine under climate change in the Pacific Northwest