109F and Company
Back in late August we got a call from a landowner in Scottsvalley about a deer that had been killed by a puma on her property. The puma had caught the deer on a long driveway leading up to residences at a little after dusk. The driveway had fences to either side with...
108F Relocation
March 7th, 2019 we got a report that a mountain lion was spotted on a residential property in Saratoga, CA. California Department of Fish and Wildlife (CDFW) personnel headed out to investigate and found a young female mountain lion hiding underneath a pine tree in...
The San Mateo Puma (56M) – One Year Later
On May 18 2015, a young male puma wandered deep into San Mateo. He was caught by California Department of Fish and Wildlife wardens and transported back into nearby open space. We met the wardens near the release site to place a collar on him. One year later, 56M is...
66M: The Early Bird Gets The Puma
Sunrise from Mt Umhunum. Fog in the Santa Clara Valley. Nighttime lights of New Almaden. My day started early today in the Sierra Azul Open Space Preserve. I had been out since 5:30am searching for puma 26M in order to locate him for recapture. My plan was to start...
38F: Catching a Thief
We recaptured puma 38F last week. She's a 4 year old female. 38F’s previous claim to fame was being the star of a great web video that was produced by San Francisco’s KQED and the eventual mother of this cute little guy… Using radio-telemetry collars, like we do on...
RIP 36m – Genomics godfather to all pumas!
Remember 36m? This is the guy whose home range included the UCSC campus and went all the way up north close to Big Basin! This is 36M's territory. Each circle is a GPS location separated by up to 4 hours. One day he even decided to make a kill within view of...
2 week-old kittens
This is a pair of 2 week old puma kittens. We make our initial visit to dens at 2 weeks in order to confirm it is a den and count how many kittens were born. We return at 4 weeks to place collars on kittens in order to track their growth and survival. Our published...
Pumas Above San Jose
A photo of a puma family above the night time lights of San Jose. This photo was captured with a motion-triggered camera by our field technician Chris Fust. The effects of urbanization and human activity are a focus of our project. We have found that human development...
Using Motion-triggered Cameras To Study Puma Behavior
https://youtu.be/8Gt8FiLEUQI We have been using motion-triggered video cameras for over 4 years to study puma communication behaviors. Here is a video we captured of a mother puma and two of her playful yearling kittens. We suspect that the mother puma is 52f...
Three new puma kittens take on the world!
On Saturday, June 20, post-doc Max Allen, technician Chris Fust, and I parked in a grassy field in Wilder Ranch with one mission in mind. We were setting out to visit what we believed to be a newly established den by 25F, a female puma that lives primarily in Wilder....
