Endangered Species

A new study says endangered razorback suckers upstream of Lake Powell may struggle to migrate up the San Juan River to spawn. The fish are blocked by a waterfall that formed two decades ago when the river changed its course. KNAU’s Melissa Sevigny reports. 

Some ecologists and activists argue the endangered Mexican gray wolf should be reintroduced further north in Arizona to increase the population. But a new study coauthored by the Arizona Game and Fish Department says expanding the range would harm recovery efforts. KNAU’s Melissa Sevigny reports.

The Colorado River that runs through Grand Canyon National Park supplies water to nearly forty million people in the West. But longstanding programs to protect the river’s health are about to be defunded by the federal government. River managers say the result could be disastrous for the crown jewel of the national parks. KNAU’s Melissa Sevigny reports.

The federal government plans to defund several longstanding programs that monitor the environmental health of the Colorado River and the Grand Canyon. KNAU’s Melissa Sevigny reports, representatives of all seven Colorado River Basin states are condemning the action.