What We're Working on Now
Over the last 3 months the Fisher Team has been very busy keeping track of adult females during our 4th full denning season. This critical period of the year for fishers is now drawing to a close, after which the young kits will begin trailing their mothers through the forest. This year we were successful in identifying 28 den trees that were used by 11 different adult females. Last year we identified/verified a total 18 den trees used by 9 different adult females.
In keeping with the alarming pattern we’ve observed for all previous denning seasons, 3 different adult females were killed by predators this spring. Two of those were killed when we were attempting to locate their natal den trees in early April after several snowstorms, whereas a 3rd (F46) was killed in late May. We did attempt to rescue the 2 orphaned fisher kits left behind by F46, but the young fishers had already succumbed to dehydration/starvation down inside a partially hollow black oak den tree.
Although the deaths of 3 denning female fishers is a definite negative for the population, there was good news in that one of the orphaned female fisher kits from spring 2010 (“Little Orphan Annie,” or F39) is denning this year and has produced kits of her own!
The Fisher Team hosted a field trip on May 1 focused on fisher denning behaviors and habitat use. Over 45 agency, local landowners, or environmental group representatives attended and the event was very well received.
The Fisher Team also hosted a webinar, which can be viewed here http://uc-d.adobeconnect.com/p1gi1tnogvg/. They presented an overview of the team’s camera survey, reproduction, survival, and dispersal data for 2013. They also gave details about the metrics that will be used to integrate fisher data with the other SNAMP research teams, including occupancy, intensity of use, and reproductive habitat quality, as well as the priorities for fisher research in 2014.
The Fisher Team will keep quite busy during the summer season measuring habitat features around the spring 2012 den trees, surveying for fisher activities around SPLATS, working on data analyses/manuscripts, and keeping track of the current 36 radiocollared fishers roaming the study area.
- New Fisher Team Science Briefs posted
- SNAMP Pub #23: Impacts of rodenticide and insecticide toxicants from marijuana cultivation sites on fisher survival rates in the Sierra National Forest, California
- SNAMP Pub #22: An evaluation of a weaning index for wild fishers (Pekania [Martes] pennanti) in California
- SNAMP Pub #19: The use of radiotelemetry in Martes research: techniques and technologies
- $25,000 awarded by Chukchansi Tribe to help clean up marijuana grow sites on the Sierra National Forest
- Oct 23 2013 - Fisher Wildlife Team Webinar Presentation
- Fisher Team Webinar Update
- October 2013 Fisher Team Update
- The Federal Government’s Shut Down Affects the Use of the SNAMP Fisher Team’s Plane
- A New Science Brief: Social Media on Fisher Sock Drive
- SNAMP PUB #15: Using Social Media to Involve the Public in Wildlife Research—the SNAMP Fisher Sock Collection Drive
- Sac Bee: Pot grow sites' poisons cited in fishers' survival struggles
- July 2013 update on the SNAMP Fisher Team
- Green Blog: Roadkill is a serious threat to rare wildlife populations
- May 2013 update on the SNAMP Fisher Team
- Dr. Sweitzer has resigned from SNAMP
- News about the Fisher Team
- March 2013 update on the SNAMP Fisher Team
- We've added two new Science Briefs from the Fisher Team
- SNAMP PUB #17: Anticoagulant Rodenticides on our Public and Community Lands: Spatial Distribution of Exposure and Poisoning of a Rare Forest Carnivore
- SNAMP PUB #10: Canine distemper in an isolated population of fishers (Martes pennanti) from California
- Fisher Presentation at Yosemite Area Audubon Society
- Fisher Team update, Feb 2013
- We've added two new Science Briefs: Fisher and Biomass related
- Update on the Fisher Sock Drive!
- Owl Team response to questions from Steve Brink, 10/4/2012
- Questions for SNAMP Owl Team
- Owl team response to questions from Steve Brink
- New updates from the Fisher team
- Forest Research and Outreach Blog on Current Status of SNAMP
- SNAMP status and funding update
- Thanks for the socks!
- Green Blog on Socks Drive for Fisher Research
- Dr. Reginald Barrett resigns from SNAMP
- Wildlife Information Repositories
- Fisher Monitoring Season
- Fisher Den Video
- Fisher den found in Yosemite
- Anticoagulant Rodenticides and Fishers
- Fall 2010 Newsletter: Vol 4. No. 2 - Fisher Team
- Fisher Kit Blog
- UC researchers rescue 5 orphan fisher kits
- Fisher Camera Trap Grids, as of 7-24-08
- Fire update (7-16-08)