Is it likely to establish and maintain viable populations where introduced?
High. Here are three ways of looking at the relative probability that viable populations of EAB can be established if the insect is introduced in an area. Figure 1 shows the estimated total number of ash trees by county. If we look at the proportion of ash species from a timber volume point of view (for commercial purposes) as in Figure 2, or from a total number of trees (for aesthetic purposes) as in Figure 3, the relative risk increases outside of the oak-hickory dominated Ozarks. And, for any given county, the risk increases if there is a high concentration of ash trees in a localized area, such as a city or town.
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- Is it likely to establish and maintain viable populations where introduced?
