aquatic invasive species

A picture of the European Starling, a prevalent invasive species found in national parks throughout the country and the Mountain West.
Lee Karney / U.S. Fish and Wildlife Service

Invasive animals are posing a major threat to national parks throughout the country, according to a new paper published in the journal Biological Invasions.

Ashley Dayer, the study’s lead author, says her team received data from 81% of national parks and found there are more than 300 invasive animal species across the National Park Service system.

Tahoe Officials Crack Down On Invasive Species

May 25, 2016
Don Graham-Flickr / CC BY-SA 2.0

It’s officially boating season up at Lake Tahoe and some groups are boosting efforts to stop invasive species from wreaking havoc. Reno Public Radio’s Marcus Lavergne reports:

The Tahoe Keys Property Owners Association and researchers at the University of Nevada, Reno are figuring out ways to fight off weeds and fish that don’t belong. 

“These invasive species are a constant threat that we face at Lake Tahoe that can really degrade our environment and our recreational experiences here,” Lotshaw said.

Amy Westervelt


A controversial proposal to use herbicides on invasive plants in the Tahoe Keys, in South Tahoe, is expected to win EPA any day now.


EPA officials say the agency is still evaluating potential water quality issues, but even critics of the Tahoe Keys plan say they've been told approval is imminent.