I am interested in the evolution and the ecology of marine organisms, particularly sea urchins, but also fishes, crustaceans, and corals. I focus on the processes that give rise to new species, and I use molecular tools to reconstruct the history of populations and of genes. Typically, this...
As STRI director for 34 years, a lot of innovative things were enabled under my watch. One of the most important was the addition of the five peninsulas to the Barro Colorado Nature Monument, which created a buffer zone around Barro Colorado Island and added research areas that allow for...
A rocky intertidal zone and sandy beach
at the Pacific entrance to the Panama Canal.
Lower atmospheric carbon and cooler temperatures may have contributed to the domestication of corn, a new study shows.
Thousands of years of hunting has turned a substantial meal into a bite-sized snack.
Large numbers of small algae-grazing sea urchins and fish may take the place of larger grazers to prevent algae from overgrowing reefs, a new study shows.
A coral die-off in Panama was likely due to oxygen depletion instead of the usual culprits of warming, pollution, overfishing and acidification.
Satellite tracking technology reveals the massive ranges of breeding areas of humpback whales in the Pacific Ocean.
A new study points directly links healthy coral reefs to healthy populations of these brightly colored fishes.
