Tag: California

November 18, 2021

California monarch numbers rebound

After a record low last winter, initial counts of western monarch butterflies in California this winter show the population is rebounding. Last winter, the Xerces Society for Invertebrate Conservation recorded...

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...

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...

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...

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....

July 20, 2021

Cascades frogs in California are genetically distinct

Imperiled cascades frogs in California may need to be managed as a distinct population at the southern end of the species’ range. “We know they’ve blinked out from a lot...

June 25, 2021

As the climate changes, are monarchs changing, too?

The western monarch butterfly population has been decreasing on its usual breeding grounds throughout the West. Last winter, overwintering numbers were the lowest ever recorded. But that may not mean...

May 25, 2021

Flexible bees fare better

Bee species that can easily change their pollination behavior have a better chance of survival in an area of California that’s under stress from agriculture and climate change. Intensive monoculture...