This weekend, managers at Glen Canyon Dam will begin a first-of-its-kind experiment to release water that benefits bugs, which play a vital role in the Colorado River ecosystem. KNAU’s Melissa Sevigny reports.
Scientists have made the first-ever map of how tamarisk beetles have spread into the Grand Canyon from other states. The leaf-eating beetles were introduced to control the invasive trees. But as KNAU’s Melissa Sevigny reports, they weren’t supposed to survive as far south as Arizona.
Climate models predict the pinyon pine could disappear from Arizona this century. New research from Northern Arizona University looks at why some pines survive and others don’t. KNAU’s Melissa Sevigny reports.