Assessing the Costs of Priority HISC Species in Hawaii

Over the past decade, funding for the Hawaii Invasive Species Council (HISC) has ranged from less than $2 million per year in the three years following the recent economic downturn, up to almost $6 million in FY2015. The HISC website provides total award amounts for past projects, but it is difficult to attribute exact dollar amounts to specific species for projects that target multiple species. As a starting point, we consider the number of times each invasive species was designated as a target over the period FY2005-2015. While this list does not necessarily represent species that generated the largest economic damages or species for which the most spending has occurred, it is a list of species getting the most attention by HISC. For the most part, the top ten have remained fairly consistent over time, although in recent years, axis deer, albizia, and ivy gourd have received noticeably more attention.

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