NAU

Each summer, wildfire scorches western forests, leaving millions of charred trees in its wake. Often logging trucks are not far behind, moving in to harvest the dead trees.


Victor O. Leshyk

Climate change scientists know that plants can’t grow larger with extra carbon dioxide unless they also have nitrogen. But a new study coauthored by a Flagstaff ecologist shows fungus can help plants get around that limitation.


USFWS

Fish and frogs swim slower when they’re exposed to pesticides, according to a review study by two Northern Arizona University biologists.


Getty Images

When bears raid campsites, it might be because of a relationship that developed thousands of years ago between humans and carnivores. That's what an archaeologist at Northern Arizona University believes. Chrissina Burke is looking at ancient bison kill sites to prove that wild animals have been conditioned to see humans as food providers. 

Burke says, "The research focuses is really focused on how do humans impact animals on the landscape. So, what I've been looking at in that context is how carnivores came in, saw, and said, 'Oh hey look! A smorgasbord. Free food!" 

Jo Mora/Northern Arizona University's Cline Library

The Grand Canyon, Wupatki National Monument and Sunset Crater Volcano are some of the geologic and cultural gems of the National Park Service. This summer, KNAU's Earth Notes series will highlight these, and other special places across the Southwest in honor of the Park Service's 100th anniversary. In the fifth installment of the series, we look at Hubbell Trading Post in Ganado, Ariz., which served as a community hub since it opened in the 1870s. 


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