The Department of Land & Natural Resources will begin construction next week on 3.3 miles of fencing on Kauai's Hono O Na Pali Natural Area Reserve.
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The fence will wrap around nearly 2,300 acres from sea level to the Na Pali coast plateaus. It is an effort to keep out what's being called a bombardment of invasive species that include Australian Tree Ferns, pigs and deer.
The reserve not only protects native forest watersheds, but also 48 species of endangered plants and six species of endangered birds.
"Several of the species there are found not only nowhere else on Earth, but nowhere else in the state but there," said division administrator Lisa Hadway of the DLNR Forestry and Wildlife office.
In the last 200 years, more than half of Hawaii's forests have been lost and the state holds a third of all endangered species in the U.S.
State and federal funds will pay for the project and it should be complete in about a year.
Hadway says staff will be building gates and step-overs to keep the area open to the public.