Cooperative Extension San Joaquin County
University of California
Cooperative Extension San Joaquin County

Posts Tagged: Pacific fisher

Public to weigh in on Sierra Nevada forest recommendations May 27

Pacific fisher
To protect forests and homes from wildfire, vegetation is often removed to reduce fuel for a fire. But how do those forest management treatments affect fire risk, wildlife, forest health and water?

Since 2006, a team of University of California Agriculture and Natural Resources scientists has been studying the effects of vegetation management in the Sierra Nevada forest on fire behavior, forest health, water quality and quantity, the Pacific fisher (a small mammal in the weasel family) and the California spotted owl. The researchers are writing up their final reports and seeking public feedback on their recommendations and next steps in the process.

On Wednesday, May 27, community members are invited to discuss the recommendations with the Sierra Nevada Adaptive Management Project (SNAMP) team at an all-day meeting in the Sacramento area.   

“Although adaptive management as a theory of practice in resource management has been in the literature for decades, few studies have been done to truly apply theory to actual practice,” said Susie Kocher, a UC ANR Cooperative Extension forestry and natural resources advisor for the Central Sierra area.

Spotted owls
“SNAMP was designed in an open and transparent process, engaging the public, agencies and land managers with the scientists,” said Kocher, who has encouraged public participation in the process.

The US Forest Service's 2004 Sierra Nevada Forest Plan Amendment calls for managing the 11 national forests in the Sierra Nevada using the best information available to protect forests and homes. SNAMP is designed to provide resource managers with research-based information for making forest management decisions.

The SNAMP meeting will be held 9 a.m. to 4 p.m. on May 27 at the Wildland Fire Training Center, 3237 Peacekeeper Way in McClellan (near McClellan Airfield outside Sacramento).

To attend, please register at by Sunday, May 24. Registration is free.  

For more information about the project, visit The final SNAMP report will be available for download at Comments will be accepted online at until July 15.

SNAMP participants view a treatment site in 2011
Posted on Friday, May 22, 2015 at 6:16 PM
Tags: forest (12), Pacific fisher (2), Sierra Nevada (8), SNAMP (9), spotted owl (2), Susie Kocher (14)

Roadkill is a serious threat to rare wildlife populations

A Pacific fisher roadkill found along Highway 41 in the winter.
Why shouldn’t the chicken cross the road? Because statistics show it is very likely she will be run over! According to the Humane Society of the United States, over a million animals die on our roads every day.

Wildlife statistics gathered by the California Roadkill Observation System created by the Road Ecology Center at UC Davis have recorded almost 22,000 animal deaths on California roads in the last four years. Roads are an additional danger beyond those that Mother Nature already has in store for the wildlife of our state and it is one we bear the responsibility for. The loss of each animal affects its population numbers, it reproductive capacity and any babies left behind in its nests. But if an animal does not cross roads, it can result in genetic isolation in wildlife populations and loss of habitat.

For the Pacific fisher research team of the Sierra Nevada Adaptive Management Project (SNAMP), roadkill is very much a concern. They have been tracking the Pacific fisher, a nocturnal forest dwelling weasel, in the southern Sierra for the last five years. Their goal has been to identify the effects that forest thinning in may have on the fisher. In their careful tracking, they have recorded the deaths of nine of these rare animals on Highway 41, which cuts through the study area on its way to Yosemite. This is an important number considering the isolated population is estimated to be only about 300 individuals south of the Merced River; and these are only the roadkill incidents we know about.

In the team’s search for solutions to the roadkill issue, they have assembled a Wildlife-Vehicle Collision Group with the Forest Service, Yosemite National Park, Defenders of Wildlife and Caltrans to search for any possible solutions. Members of the SNAMP Wildlife Team put cameras in culverts passing beneath Highway 41 from Oakhurst to Yosemite to see if they were being used as a possible alternate route. (For details see the Sierra Nevada Highway Culvert Product, pdf). The good news is that many animals, including fisher, were found to be using road culverts to pass beneath the road, avoiding collisions with cars. This provides some hope that maintenance of the entrances and exits of existing culverts offers a safe alternative to road crossing for wildlife.

Posted on Thursday, July 25, 2013 at 9:33 AM
  • Author: Anne Lombardo
Tags: Pacific fisher (2), roadkill (3), SNAMP (9)
Webmaster Email: