wildlife

NPS

National Park Service officials are calling for volunteers to assist with the lethal removal of bison from the Grand Canyon’s North Rim later this year. Officials say the growing herd often tramples water resources, vegetation and sensitive archaeological sites. KNAU’s Ryan Heinsius reports.


Paul Carter/The Register-Guard via AP, File

The Arizona Game and Fish Department next week will continue an effort to bolster the state’s declining pronghorn population by lethally removing coyotes.

Arizona’s high country has seen some recent snowfall with more on the way. But much of the state remains in “exceptional” drought status. That’s been hard on wildlife. Natural ponds and stock tanks have dried up. A nonprofit group of hunters and conservationists is trying to help by refilling those watering holes for the benefit of elk and other animals. KNAU’s Melissa Sevigny spoke with Steve Clark, executive director of the Arizona Elk Society, about the program.

In autumn swarms of flying insects cloud the skies on the lower Colorado River near Bullhead City. Caddisflies are a nuisance to recreationists who want to boat, swim or fish on the river. So city officials have started an unprecedented experiment to get rid of them. They recently tweaked the operation of Davis Dam to lower the river’s level and try to kill off the bugs. But just three hundred miles upriver another first-of-its-kind experiment is happening at Glen Canyon Dam, with the goal of SAVING caddisflies, not killing them. KNAU’s Melissa Sevigny reports on how the Southwest’s largest river ended up in a tug-of-war over a tiny bug.


NPS

The Arizona Game and Fish Department and the National Park Service have reached a deal to reduce the number of bison near the North Rim of the Grand Canyon. KNAU’s Ryan Heinsius reports.


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