Geographical Location: Western

November 8, 2021

Illegal cannabis farms pose danger for at-risk wildlife

In 2015, biologists Greta Wengert and Mourad Gabriel were conducting necropsies on fishers—a candidate for listing under the Endangered Species Act at the time—to find out what was causing their...

November 4, 2021

TWS2021: Florida crested caracaras are genetically distinct

Crested caracaras are found widely across the American tropics, but the species’ northern range pushes into some of the southernmost states in the U.S. While this falcon is relatively common...

October 28, 2021

Mountain lions become efficient during COVID-19 shutdown

The Hollywood mountain lion dubbed P-22 moved around much less than it usually did during the early months of the COVID-19 shutdown. Famous for being the most urban mountain lion...

October 26, 2021

Young tiger salamanders decline despite protection

The California tiger salamanders of Sonoma County continue to decline despite well-intentioned efforts to preserve areas for the amphibians. The distinct population segment of California tiger salamanders is unlikely to...

October 25, 2021

JWM: Big cats adapt to city life

Mountain lions live closer to developed areas in Los Angeles than researchers previously thought. Los Angeles, one of the largest metropolitan areas in the country, is home to about 18...

October 20, 2021

Nevada to gain new cooperative research unit

Nevada is set to host a new cooperative research unit—the first new unit in the system in over 35 years. The state Department of Wildlife; University of Nevada, Reno; the...

September 8, 2021

The keys to successful endangered rat neighborhoods

Nothing can ruin moving into a new area more than finding out you have bad neighbors. Recent research shows neighbors are just as important for endangered kangaroo rats in Southern...

September 1, 2021

Human water demand can imperil California’s endangered species

In Southern California, where scarce water resources are carefully managed, it would seem like wildlife would benefit when more water flowed in streams and rivers. But that’s not what researchers...

August 20, 2021

JWM: Cougars prey on feral horses in the Great Basin

GPS tracking collars on cougars have revealed that the predators extensively prey on the burgeoning feral horse populations in the Great Basin. “We found that both male and female [cougars]...

July 26, 2021

California system keeps an eye out for wildlife illness

A new surveillance system in California may help identify unusual patterns of wildlife illness and death as they unfold by tapping into data from wildlife rehabilitation organizations across the state....