Sheriff’s research seeks to understand the mechanisms underlying the variable growth response of South Western trees to dry conditions. Although this variability likely involves multiple factors, maintenance of xylem water transport may be the key response. She has chosen to analyze xylem contained in the rings of Pinus edulis and Populus tremuloides to elucidate how xylem plasticity relates to growth during and following a drought.
Ecological memory stored in a landscape can help an ecosystem recover from disturbances like fire and outbreaks of disease. But what happens when climate warming disrupts that process? How long before ecological memories stored in Read more…
A study led by Northern Arizona University offers new evidence that a common framework to sort bacteria into two lifestyles doesn’t easily apply to bacteria living in wild soil. The findings, published in The ISME Journal, show Read more…
In 2002, the Odyssey probe discovered evidence of past ice on Mars. The U.S. Congress authorized the Iraq War resolution. The Anaheim Angels won the World Series. And in a meadow 15 miles north of Read more…