Invasive Forest Insects Damage Budgets As Well As Trees

Most of us encounter invasive species every day--for instance, pigeons and house sparrows eating crumbs underneath sidewalk cafe tables, or the ornamental plants in our own front yards. Because the sight of these species becomes routine, it is easy to forget that they don't belong in many of the places where they are currently found, and that their presence may come with a cost. In the case of invasive insects, that cost can be counted in dollars--millions and billions of them each year. Exact numbers have traditionally been hard to come by because of the difficulty of tracking down informative datasets and taking into account complex interactions and often high amounts of uncertainty associated with estimates. read more

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