Okay, there is a sweet local article this morning about the little baby beaver at Suisun Wildlife Rescue but we are indulging me because I’m doing the typing. This article from Edible is actually in the perfect location to care enough to report this right. And I just have to share it.
Could a creature left out of Southern California history revive its waterways?
This piece was supported by a Society of Environmental Journalists funding award, underwritten by The Hewlett Foundation, The Wilderness Society, The Pew Charitable Trusts and others.
And Leslie’s article is worth EVERY PENNY. I tell you.
Parts of Ventura County’s Sespe Creek are nearly as wild today as they were in the early 1900s, when Joseph Grinnell first caught wind of the “unexpected find” there. It’s hard not to wonder what might still lay hidden among its rugged terrain.
If you know what to look for, you can still make unexpected finds of your own: old chewed up sticks or, via satellite, structures bearing the characteristic signature of the creatures’ engineering feats.
Where did the beaver come from, are they still here, and do they belong here? “It’s like a Sherlock Holmes mystery,” said Rick Bisaccia, Ojai Valley Land Conservancy’s former stewardship director, of the 100-year-old hunt for answers. And the answers could point the way out of many of Southern California’s ecological quandaries.
Oooh ooh call on me! I know!
In 1937, Joseph Grinnell, the first director of the Museum of Vertebrate Zoology at Berkeley, answered that question in a hefty treatise on California’s fur-bearing mammals: no. Or rather: no, but…. On his California beaver range map stood a lone question mark far south and west of any other native population. Grinnell was apparently unconvinced of what had been found there. The mark was right atop Sespe Creek.
Fifty years later, Rick Lanman looked behind his Bay Area home and wondered why a stream that used to flow year-round until the 1950s was now dry half the year.
Oh I know this story! YOU know this story. We like this story.
“One of my theories was maybe beaver perennialized it,” said Lanman, who is a physician, researcher, self-proclaimed serial biotech entrepreneur and founder of The Institute for Historical Ecology. Beavers’ heavy ponds push water into the ground during wet times. Then, in dry times, the replenished groundwater feeds the stream.
But according to the ghost of Grinnell, who continued to haunt official beaver range maps, the Bay Area was also a beaver desert. “Which doesn’t make any sense,” Lanman said. The animal thrives in both the Canadian tundra and the deserts of northern Mexico. Why not coastal California? Lanman and his colleagues went digging for answers.
Oh I’m I feel like I’m back in kindergarten sitting criss-cross applesauce on the teachers rug and listening to my favorite story told over again. Aren’t you?
Luckily, history is written all around us and in 2013 Lanman and his co-authors published their results. All over California, they found beaver evidence in old newspapers, ships’ logs, fur trapper journals and place names. Local Chumash references included words for beaver, a beaver dance, a shaman’s beaver-skin rainmaking kit and perhaps even a beaver pictograph. It appeared the once-widespread creature had been hunted—in some places to near extinction—by the time Grinnell examined their range.
These were clues, but in science direct physical evidence outweighs words. A skull specimen and carbon-dated dam remains settled the case in the Bay Area and the Sierras respectively. What about Southern California?
What Grinnell had symbolized on the map with his Sespe question mark was, in life, the origin of a beaver skull specimen. And when Lanman uncovered letters between Grinnell and the skull’s collector, zoologist John Hornung, the Sespe question finally got its answer:
On May 19, 1906, Hornung chanced upon the dying beaver near Hartman Cold Springs Ranch in the Sespe. An “unexpected find,” he called it. Perhaps, though not too unexpected. “There are still quite a few beaver in Southern California,” he added.
“What Grinnell… had failed to account for,” wrote Goldfarb, “was history.”
How Lucky can you get. A reporter who contacts Rick Lanman, and Emily Fairfax, AND reads Ben Goldfarb’s book. Now I’m not stupid. I knew this day would come. But I truly never thought it would come from Edible magazine in Ventura County!
California beaver work remains complicated by its history. For example, policy remnants prohibit beaver relocation, says Fairfax. And, according to 2016 WATER Institute report, Beaver in California, no CDFW codes promote beaver stewardship or restoration.
Public perception can also complicate the matter. Though Fairfax’s work details how beaver activity can act as a fire break and drought buffer, beavers have their own agenda.
“Beavers are absolutely an agent for good in the environment, but…sometimes they will conflict with humans,” she says. A dam-induced flood enriches soil and improves water quality and availability in the future, but it’s hard to stomach a flooded farm crop to get there.
Luckily, beaver experts are also innovators. Inventions such as “beaver deceivers” give humans influence over pond levels or dam locations and simple trunk treatments can discourage the gnawing of a prized tree. Beavers and humans won’t be able to coexist in every situation, Fairfax cautions, but she encourages “taking that extra minute to stop and think: If there is a beaver, how can I interact with it in the neutral way, instead of trying to control it?
And perhaps, in the end, relinquishing a bit of control is the moral of the California beaver story. In an increasingly dynamic climate, we humans still think and build statically, encasing our rivers in concrete. Beavers, however, build for flux, for generations and for an interspecies community.
“The beaver is the story of someone who is working hard and they’re trying to make the environment a better place… for their families and for the future,” says Fairfax.
Yes, beavers belong here because they benefit us and other creatures. But mostly, one might point out, they belong here because they always have.
Oh my goodness. I could read hear this story over and over. Thank you so much Leslie for this retelling. It is the best one I can ever remember.
Leslie Baehr is a science writer and content strategist who works with media outlets, research institutions, not-for-profits, and companies. An alumna of MIT’s Graduate Program in Science writing, she enjoys exploring the interplay between science and ideas.
Yesterday a new buddy Jorge Echegaray, on the beaver management forum posted the first beaver booklet released in Spain explaining to landowners about their new odd flat-tailed neighbor. I took a look through and thought you’d be interested. My retired spanish-teaching sister very kindly translated the chapters for me which get me very interested.
Flow devices are a solution that can protect both the animals and the infrastructure, by allowing water to continue moving as designed regardless of damming activity. These devices have now been installed in two locations on Lugrin Creek: one can be found just off of Beaver Creek Road, across the street from the Alberni Co-op, while the other is located on the Kitsuksis Dyke trail.
Fox said she’s not aware of any other municipality on Vancouver Island that has made this commitment to addressing conflict sites, although the Fur-Bearers have worked with other municipalities in the Lower Mainland to install flow devices.
MONKTON — On a warm sunny Friday afternoon last month, Theresa Payea, dressed in waders, stood atop a well-established beaver dam in Monkton Pond (also known as Cedar Lake). Payea was there, along with a few other members of the newly re-established Cedar Lake Association, to help bring a decades-long battle with beavers to a peaceful, humane conclusion.
