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United States Map Sudden Oak Death Risk

This map was developed in collaboration with Government Relations and was part of the US Conservation Blueprint analysis group: Threats. It is part of a series created to highlight potential invasive species and disease threats in the US and to identify where Ecoregional Portfolio Sites overlap with areas identified as ?at risk? by a variety of sources. In this sub series, the risk is Sudden Oak Death, a fungus-like disease preying upon mostly oaks and woody shrubs across the US. In this map, the USDA Forest Service State and Private Forestry, FHP Research and Development Cooperative FHM Program?s SOD risk map was overlaid with Ecoregional Portfolio Site Areas. The Ecoregional Portfolio Sites? are shown in gray while estimated percent density is shown in three classes: Low Risk, Moderate Risk, and High Risk. These classes were identified using three criteria: (1) distribution of known and suspected host species, (2) likely pathways of introduction to new areas, and (3) climatic conditions that favor or limit the development of the pathogen (USDA Forest Service). For more information on the risk dataset:

Projection: USA Contiguous Albers Equal Area Conic (USGS Version)

Data Sources:

W.D. Smith and J.W. Coulston. 2002 Preliminary SOD Risk/Hazard Map

USDA Forest Service State and Private Forestry, FHP Research and

Development Cooperative FHM Program

TNC Portfolio Areas, TNC, as of August 2004

State Boundaries: ESRI

Copyright ? 2004 The Nature Conservancy

Map Produced by N. Law - Global Priorities Group - 08/14/2004

Author: Natalie Law

Geographic Extent: National

GIS Applications: Presentation graphics
Threats assessment
Ecoregional planning

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