Wetlands may be the key to saving the Mekong River

But those habitats are often understudied. While the stretch of river in northern Cambodia has been designated a Ramsar site—a wetlands area of international importance—little research has assessed the ecological damage to the flooded forest there. “What we have is basically interviews with people,” says Ian Baird, a geographer at the University of Wisconsin-Madison, who has studied fisheries across the border in Laos for several decades.