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Total Basal Area (BA) for all tree species is in square feet per acre.To monitor the potential hazards posed by invasive pathogens, the U.S. Forest Service’s Forest Health Technology Enterprise Team (FHTET) created a national database designed to assess the potential hazards on tree mortality and identify forest ecosystems at risk of invasive or pathogenic threats.When the introduction or increased activity of invasive or pathogenic plant and animal species dramatically alters the structure and function of ecosystems, the benefits that those ecosystems provide to people are also affected. Additionally, the negative effects of forest pathogens and invasives on certain species may be exacerbated by climate change,...


    map background search result map search result map Percent of Tree Basal Area at Risk of Forest Pathogens Percent of Tree Basal Area at Risk of Forest Pathogens