environment

Sonoran Desert NPS

A leech occupies the top spot in the food chain at Montezuma Well near Camp Verde. Surprisingly, its body contains the highest level of arsenic ever recorded in a living organism.


Earth Notes: Restoring Heiser Spring

Feb 3, 2016

Life flourishes near water in the desert. From rare plants to insects that begin their lives in water to the colorful warblers that eat them, healthy springs are hotspots of biodiversity.


Rylee Isitt/WikiCommons

The U.S. Bureau of Land Management (BLM) hopes to test experimental contraceptives on the overpopulated Black Mountain burro herd near Kingman.


To avoid the first frost, Navajo herders move their livestock to lower ground when aspen trees drop their leaves. Others watch the stars and the moon to gauge the timing of seasonal movements. But with changing climate in the Southwest, nature’s signs have become less reliable.


Michael Chow/The Republic

Four endangered Mexican gray wolves were found dead last December in Arizona and New Mexico. It’s the first time in three months that wildlife officials have reported deaths in the population that makes up the Mexican Wolf Reintroduction Project. Arizona Public Radio’s Ryan Heinsius reports.

U.S. Bureau of Reclamation

Federal officials have proposed a sweeping new plan to manage Glen Canyon Dam for the next two decades. They want to be more proactive in their efforts to restore fish and animal habitat as well as beaches that have degraded in the Grand Canyon since the dam became operational in the 1960s. Arizona Public Radio’s Ryan Heinsius reports.


Chris Parish

A federal court ruled yesterday a lawsuit over lead ammunition on the Kaibab National Forest will be allowed to continue.

For millennia, people have coveted rare goods they could get only through trade with others. The Ancestral Puebloans of the Colorado Plateau were no exception. They traveled great distances to exchange items like local turquoise, hides, and pottery for exotic shells, copper bells, and cacao.


Melissa Sevigny

Chemical deicer is commonly used to keep roads clear of snow and ice, and it makes travel safer. But it also kills ponderosa pines. The City of Flagstaff found that out when they experimented with deicer a few years ago. From the Arizona Science Desk, Melissa Sevigny reports on the tradeoff between public safety and environmental health . . . a tradeoff few cities in the nation have to make.


Melissa Sevigny

Almost 10,000 Christmas tree permits have been issued this season on national forest lands in northern Arizona. Getting into the holiday spirit can also help restore health to overstocked forests.


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