On a misty stretch of the Koʻolau Mountains, more than 100 critically endangered kāhuli, the tiny jewel‑like Hawaiian tree snails, just got a carefully planned shot at survival. This week, conservation crews released them into a specially protected pocket of forest built to shut out the predators that nearly wiped them out.
According to Hawaii News Now, the Honolulu Zoo teamed up with the Hawaii Department of Land and Natural Resources and the state’s Snail Extinction Prevention Program for the release. The snails were raised in captivity, then moved into a managed site designed to keep out rats, rosy wolf snails and other invaders that have turned native snails into an endangered‑species cautionary tale.
Predator‑proof homes for released snails
The Snail Extinction Prevention Program (SEPP) relies on predator‑proof exclosures, small cage structures and intensive trapping to give kāhuli a fighting chance. Those barriers typically use smooth wall surfaces, angled flanges, copper mesh and electric deterrents to keep out rats, Jackson’s chameleons and carnivorous snails, according to DLNR’s SEPP.
Where the program stands
Why kāhuli matter
Kāhuli once included roughly 750 distinct species across the islands and play an outsized role in nutrient cycling and overall forest health, DLNR notes. With about 60% of those species already lost and many more at risk, biologists see releases into predator‑free sites as a stopgap while longer‑term habitat work and predator control continue, according to DLNR…