Laughing Bird Caye is a tiny island. There’s not much to see on the ground, but under the water it’s clear why it was declared a national park. The place simply oozes life. A seemingly infinite school of tiny silver fish travel from beach to coral fields, where green, yellow, and red “stoplight” parrotfish swim and spiny lobsters hide within a forest of staghorn and elkhorn corals. As marine biologist Lisa Carne describes it, that abundance is hard-earned.
In 2001, one of the most devastating hurricanes that Belize has known, Hurricane Iris, hit Placencia directly and tore up the tiny island. “Everybody [heard] that Laughing Bird Caye was dead,” Carne says.
At the time, she was working in northern Belize, where she kept finding fragments of coral—broken-off, but still alive. And since she knew that corals live in high-energy, shallow areas where waves and storms regularly break pieces off, she also knew that they were adapted to survive such physical disturbance (think of taking cuttings from plants to grow new ones).
“When a broken-off piece tumbles around and gets secured in the reef,” she explains, “it can live and grow into a new individual.” That’s the case with the elkhorn and staghorn corals, which are among the fastest growing reef-building corals.
So Carne decided to replenish Laughing Bird Caye—not by creating an artificial reef, but by putting back the same kinds of corals that used to be there and helping them regrow. To make it happen, she founded the nonprofit Fragments of Hope in 2013.
As Carne dives in the reef, she points at two corals that she and locals transplanted years ago. They’re both elkhorns, and yet despite belonging to the same species they look clearly different, one of them with thicker branches than the other. Fostering different individuals like these is one way to make the coral population genetically diverse, work that WWF has strengthened by funding lab analyses of coral genetics at the project site. A diverse coral community is more likely to weather intense storms and changing ocean temperatures. Eventually, it will also be able to sexually reproduce on its own, an achievement that Fragments of Hope documented for the first time in 2014.
The ultimate goal is not only to have a diverse coral community, Carne explains, but a diverse reef ecosystem. “It’s not just a matter of putting back a few species,” she says. “We’re actually increasing the biodiversity of the entire area by providing a habitat that other species need.”