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Opening Brief Filed in Case to Save Humboldt Marten

Updated: Feb 2


Humboldt marten.
Humboldt marten. Photo by U.S. Forest Service (PD).

In late May, EPIC submitted an opening brief in the case to overturn a permit that threatens California’s last remaining Humboldt martens. Read it here. With fewer than 200 likely in the state, the marten is teetering on the edge of extinction. Necessary to the long-term survival of the species is to connect the largest population of martens, found on Six Rivers National Forest in Del Norte County, to prime habitat in the Redwood National and State Parks complex to the southwest. Standing in the way is Green Diamond, which owns the majority of this area.

Green Diamond clearcut along Redwood National Park border.
Green Diamond clearcut along Redwood National Park border. Photo from Google Earth.

Green Diamond’s clearcut-heavy management is antithetical to the needs of the Humboldt marten. Martens require mature forests and thick layer of herbaceous undergrowth to slink through the forest undetected by predators. Clearcutting destroys this undergrowth and leaves martens exposed. Clearcutting also provides prime habitat for the marten’s number one predator, bobcats, whose populations explode because of the woodrats and rabbits that enjoy clearcuts. With so many bobcats present, Green Diamond’s lands become uninhabitable for martens and, where clearcuts are near occupied marten habitat, bobcats begin to tread further into these occupied areas. That’s why it is curious that the California Department of Fish and Wildlife gave the company a free pass to “take” martens through their management.


As we’ve previously recounted, through funny math and a promise to relocate martens, Green Diamond convinced higher ups at the Department to issue a permit. And as we’ve now discovered through Public Records Act requests and through litigation, the actual scientists who work closely with Green Diamond were aghast—one writing that “this [Safe Harbor Agreement] sounds absolutely Orwellian” and that the permit “will, as a whole, actually be harmful.” Political interference to benefit a powerful timber company and plodding through the objections of staff scientists is something that we’ve come to expect from the Trump administration, not California’s wildlife agency.


The case is being heard in Humboldt County Superior Court by Judge Kelly Neel. EPIC would like to extend a special thanks to our excellent attorneys, Marie Logan and Greg Loarie, of Earthjustice for representing us and our friends at the Center for Biological Diversity, who are our co-plaintiffs in the case. #TeamMarten

advocating for northwest california since 1977

The Environmental Protection Information Center (EPIC) is a grassroots 501(c)(3) non-profit environmental organization founded in 1977 that advocates for the science-based protection and restoration of Northwest California’s forests, watersheds, and wildlife with an integrated approach combining public education, citizen advocacy, and strategic litigation.

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