Author Archives: Sean Matthews

A Transition

Rob Swiers has dedicated as significant portion of his academic and professional career to of Northern Sierra Fisher Reintroduction.  He began working on the project on the Eastern Klamath Study Area using non-invasive genetic sampling and mark-recapture analyses to evaluate the removal of fishers from the population for translocation to the northern Sierra Nevada.  He successfully transitioned the work into his master’s thesis at North Carolina State, completed in 2013. Beginning the same year, Rob assumed the Project Manager position on the Stirling study site as Aaron Facka transitioned back to course work and writing at North Carolina State.  Rob has done a tremendous job keeping track of project research objectives, field staff, budgets, accounting, cooperator communication; in short everything a successful field project requires, and then some.  Thus we are sad to report Rob is transitioning out of the Project Manager position to take on some other project-related responsibilities prior to moving on to other opportunities.

RSwiers-capture 2013


Rob Swiers holding an immobilized female fisher, fall 2013


Rob will be focusing on noninvasive analyses for Stirling and the Eastern Klamath Study Site over the next several months.  A more complete understanding of the rich data set from the Eastern Klamath will further support our understanding of non-invasive protocols and their implementation in Stirling for long-term population monitoring.  He will also be supporting the U.S. Fish and Wildlife Service in reviewing the current state-of-knowledge of fisher habitat selection that will assist the Service with developing conservation guidance for fisher habitat.

Rob, we sincerely appreciate all of your efforts on the project, look forward to your continued investment in our non-invasive analyses and review of fisher habitat selection, and wish you the very best in your next step.

Categories: News

A Single Hair

It might not look like much. In fact, you might not notice it at all. But a single hair is all Jesse Hogg needs to help tell an important story. Jesse is working with the U.S. Fish and Wildlife Service and other project collaborators as a Klamath Basin Tribal Intern. Jesse began his work with us on the Eastern Klamath Study Area (EKSA) which straddles the California/Oregon border. The EKSA is one of several locations where project biologists captured and relocated fishers to the Stirling District of Sierra Pacific Industries. We are using non-invasive methods to monitor the fisher population of the EKSA to evaluate if the removal of the fishers we relocated was detrimental to the population. Jesse set, checked, and collected hair samples he found in devices designed to snag hair from local fishers. The genetic material stored in the root of hair can reveal an animal’s species and sex and characteristics used to identify unique individuals. After wrapping up a successful season, Jesse is now working in Stirling to help monitor radio-marked fishers.

The Klamath Basin Tribal Internship Program seeks to inspire young native community members to develop the technical skills required to monitor and manage species and habitats, to pursue college-level educational opportunities, and to succeed in conservation-focused careers. The program provides employment and professional development opportunities for members of six native communities of the Klamath Basin of northwestern California and southwestern Oregon.

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Comings and goings.

Hi Folks, 

We’ve been without an update for awhile, and I apologize for that.  There is always a lot going on, and on top of that we’ve had some changes to our crew.  Some of the crew has moved on to other things, and we’ve gotten some new faces to carry on the work we do out here.

Kevin Smith, the man responsible for a majority of the posts you’re read on this blog (and some of the more interesting stories), has moved on to another project after being with us for 2.5 years.  Kevin is an amazing worker, and was a pleasure to have on the crew.  He helped us all out continuously, and his insight into where our animals were and what they were up to helped the project run its smoothest.  Kevin will continue to do great things working with Pete Figura at the California Department of Fish & Wildlife on their Sierra Nevada Red Fox Project:

The primary study objective is to “investigate and document Sierra Nevada red fox habitat use, reproduction, health, survival, and diet in order to identify factors limiting the its recovery in the Lassen Peak region of northern California.”

Through the use of radio collars that transmit daily location information to satellites, we should be able to track captured red foxes year-round with a high degree of accuracy.  As a result, we hope to identify den locations, monitor reproduction and kit survival, improve knowledge of habitat use and diet throughout all seasons, identify migration routes, and determine causes of mortality.  By taking blood and other samples from each animal captured, we will be able to determine whether they are infected with or have been previously exposed to several ecologically important diseases (e.g., canine distemper, parvoviruses, canine herpesvirus, Toxoplasma gondii) known to affect mesocarnivores in northern California.


We’d also like to welcome Andria Townsend, Julie Shaw, and Jesse Hogg to the crew.  They’ve been with us for several months now, and they’re doing a great job of keeping us in data!  Stop over to the Field Crew page and learn a little about them.  You’ll be hearing from them regularly this year, and we’ve got some cool things coming!

Thanks for stopping in,


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Fisher Symposium at TWS

It’s that time again!  The annual meeting of the Western Section of the Wildlife Society is being held at Woodlake Hotel (formerly the Radisson) in Sacramento, CA from the 1st through the 3rd of February.

As a special bonus, there will also be West Coast Fisher Symposium from the 31st of January – 1st of February (brainchild of our own Scott Yaeger).  Link to the symposium flyer can be found here.  The format will break from the traditional “project update” and instead invited speakers have been asked to address key questions during a presentation and then join an audience/panel discussion.  This is a great opportunity to interact directly with the researchers (besides, we’ll all be there!).  We hope you can join us as we present and discuss varying conservation concerns relating to fishers!

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39 down and 1 to go (more fishers released today)!

We’re 3 years into the project, and we’ve nearly released all our fishers.  We attracted a good group, with several dozen participants to help us loose 4 of the final 5 animals to SPI’s Stirling tract in the Northern Seirras east of Chico on the 8th of December, 2011.  We have released 39 animals to date.  We were fortunate to receive a good bit of attention from the media; take a look!

Contra Costa Times

Chico Enterprise Record

San Francisco Chronicle

Chico 12 News

We were also very happy to have the woodshop class from Anderson High School in Anderson, CA come out to participate.  They were kind enough to use some of their time last fall to build cubbies onto 40 live-traps that we put into service late last year.  THANKS!

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