USGS SCIENTIST TED KENNEDY DISCUSSES EFFORT TO ENHANCE FOOD WEB TO AID ENDANGERED FISH AS WELL AS BIRDS AND BATS
Water means life for all the Grand Canyon’s inhabitants, including the insects that are a foundation of the ecosystem’s food web. But hydropower operations upstream on the Colorado River at Glen Canyon Dam disrupt the natural pace of insect reproduction as the river rises and falls, sometimes dramatically. Eggs deposited at the river’s edge are often left high and dry. Their loss affects available food for endangered fish such as the humpback chub.