Sri Lanka’s pioneering nationwide program to save its damaged mangrove forests is bearing fruit a year on, prompting the U.S. conservation group backing it to look for another island country to launch a similar effort. Duane Silverstein, executive director at California-based Seacology, a non-profit that protects island habitats, said he was planning to visit a candidate island state in the Caribbean in the next month. “This project, if it happens, is most definitely inspired by…