Because the beaver isn't just an animal; it's an ecosystem!

Category: History


I was thinking last night about the historic name of Alhambra Creek. It used to be called Arroyo Del Hambre and it was Mrs Muir and her mother who suggested the change, I was realizing that I never searched specifically for Arroyo Del Hambre and beaver trapping so I thought you might be interested the historical summary I came across. Apparently in addition to removing all the beavers and otters fur trappers also brought Malaria to the delta which we still appreciate today.

“Two immediate consequences of the activities of the fur trappers were the destruction of populations of fur-bearing mammals, primarily beaver and freshwater otter, and the introduction of malaria, the latter of which would have long-term consequences for the history of the Delta and the Central Valley as a whole”

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Well this is a head-scratcher. I am trying to imagine what on earth would make a man say beavers haven’t been present since 5000 years ago and I’m drawing a blank. It’s worse than California saying there were  never beavers at all. It’s just dumbfounding.

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The fourth beaver paper published in the Journal of Fish and Wildlife by Rick Lanman hits VERY close to home. I am known to nod off reading academic papers but this had me on the edge of my seat all the way to its stunning conclusion.  It looks specifically at Western Message Petroglyphs on a rock in fremont. These messages recorded on rocks probably by some white man who understood native writing. They have been extensively studied and this likely comes from the second half of the 1800’s.

If you are anything like me you immediately want to see the rock. But there’s some education that needs to happen first. Once thought to represent “Fake indian writing” we now know that there are 38 sites of WMP’saround the state and the were done by people with a great knowledge of native american symbols. They contained usually important messages of information that wasn’t intended for all eyes.

This means it’s write along your commute. Right in your fuckin backyard.
And it means that someone at the time knew that beavers mattered, and removing all of them from alameda creek was a really serious thing to do. That was going to have repercussions in the future for years and years to come.


So WMP’s are read like a message from left to write, and the comb figure was accepted to mean home or lodge. So this means:

Gee what would have possibly made a lot of beavers die in 18th century. I’m wracking my brain. Can you think of anything?

And because this is Rick Lanman writing this paper he left nothing to chance and outlined resources every step of his conclusions. So if you want to be convinced, impressed or just know more click on the title to go read the full article.

As for me I’m just going to stand stunned and think about someone knowing way back in 1860 that taking all the beavers out of Alameda Creek was going to be bad news for a rapidly drying state that was trying to populate itself. And I’m going to thank beavers lucky stars that Dr. Lanman got curious about them in the first place.


A weekend of wonders this father’s day, Here’s beaver news from about the maidu consortium, whose leader spoke at the beaver summit, SF Estuary magazine. Written by our friend Lisa Owens Viani.

Thinking Like Beaver to Aid Yellow Creek

Last fall, the Maidu Summit Consortium, a nonprofit composed of nine Mountain Maidu tribal member groups, installed 73 BDAs—beaver dam analogs—in Yellow Creek, a tributary to the North Fork Feather River and a state-listed heritage trout stream. Swift Water Design and U.S. Fish and Wildlife Service designed the structures, and Mountain Maidu tribal youth worked with Swift Water to build them. The idea behind the structures, which mimic beaver dams, is to slow erosion, catch sediment, and build up the river bottom to reverse the incised channel—without importing soil and other materials or emitting carbon from heavy, diesel-powered equipment.

BDA’s to the rescue. Let’s learn all about the work that beaver do for free!

In 2019, the 2,300-acre Humbug Valley, known as Tásmam Koyóm to the Maidu, was returned to the tribe as part of PG&E’s land divestiture resulting from their bankruptcy settlement. The tribe has been working to restore meadow and riparian ecosystems ever since. “We want to see more fish diversity, a more diverse ecosystem,” says Cunningham. “We miss the beaver, porcupine, and other animals that are important to the ecosystem. Compared to pond and plug, if you have beaver doing the work they can restore meadow systems, catch sediment, address head cuts, and stop incision just as good if not better than equipment.”

Much better, any stream will tell you.  No diesel fumes and  hazardous soil replacement. Only careful  hand excavation any archeologist would prefer.

Kevin Swift, founder of Swift Water Design, led the team installing the BDAs in the first of what will be several phases. “It’s process-based restoration rather than using diesel and rock and insisting on imposing a form on the river,” he says. “Instead, we use the power the stream brings us and introduce materials that give the stream something to work with. Those structures drive channel evolution and add roughness and complexity—with a small bit of human nudging you can begin to correct structurally starved streams.”

You know Kevin was also a speaker at the California Beaver Summit. It’s almost like all the best people were gathered in one place by some unseen force.

Although the California Department of Fish and Wildlife (CDFW) will not allow people to bring beavers back to the site, the BDAs could attract the furry, long-toothed engineers, say Swift and other consortium members, who would love to see them return: there are beaver present in nearby tributaries, and cattle grazing has been discontinued since the Maidu took over land management, so there is now plenty of willow and other vegetation for beaver.

No of course they don’t. That would just be too damn logical. Much better to keep with the killing. Something they do understand,

Kate Lundquist, WATER Institute director with the Occidental Arts & Ecology Center (OAEC), who got involved in the BDA work through a grant from CDFW and developed a planning strategy for recruiting beaver, says, “We need to keep the ‘B’ in ‘BDAs.’ We want people to be doing instream structures, but we want to make sure people don’t forget the beaver. If you are building them in areas where you have beaver, they will manage and maintain the structures. Instead of being on the hook for maintenance, let the beavers do the work.”

Great point Kate. I couldn’t agree more. Although I personally might not have even said the B word. I might just have said, sure, if you know some other team of affordable engineers that live on site and make repairs every single day go ahead and use them.

If only the article had stopped there then there wouldn’t have been time for this.

Lundquist says that while some state officials have expressed doubt that beaver were native to the Sierra, she and OAEC co-director Brock Dolman have combed through historic accounts and found plenty of evidence of their presence, including a remnant dam carbon-dated to 1,270 years ago and an account from an older resident of the area who remembers a giant beaver dam and the best fishing of his life on a Yellow Creek tributary. “Tásmam Koyóm is ripe for beaver again,” says Lundquist.

Well. It is true Kate combed through accounts to find historic evidence. For the coastal paper which came later.  Kate and Brock didn’t find a remnant beaver dam carbon dated 1300 years ago. That would be BLM archeolgist Chuck James. Kate isn’t listed as an author on either paper because we didn’t even meet her until the paper had already been submitted for publication. She was instrumental to the coastal paper which followed,  In fact we might never have crossed paths with Dr. James if it weren’t for Barry Hill from the forest service hydrologist whom Cheryl met at the Flyway Festival in Vallejo who persuaded him to eventually give his original paper to Rick Lanman to rework. The rest is, as they say, is corrected beaver history,

Beaver failure is an orphan they say. But success has many parents. But it’s father’s day and to paraphrase Farley Mowat there are no orphans in beaver world. So enjoy this reminder.

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There’s plenty of beaver news out there. But on this sunny Thursday morning I thought we’d talk about the OTHER B word that was wiped out in the 1800’s by greed. I’m speaking of course about Bison. An article was published yesterday in Wilderness News that is still getting under my skin. And should get under yours. This is by George Wuerthner.

Indian Culpability in Bison Demise

I want to clarify that most of what follows is not a direct rebuttal to Sonneblume’s essay. Still, his assertions did prompt me to explore some of the common assumptions that he appears to hold, as do many others who champion Indigenous people as role models for sustainable living.

This theme is a familiar trope of many who advocate exploitation of wild nature, arguing that humans have always modified the landscape.

However, despite this human influence, ecosystem processes were sustainable, one assumes because Indigenous people exercised restraint due to their cultural values or by some quirk of genetics.

Beyond the danger to conservation efforts in such ideas is the False Cause Fallacy. Correlation is not Causation. The False Cause Fallacy occurs when we wrongly assume that one thing leads to something else because we’ve noticed what appears to be a relationship between them.

A common argument of those who advocate for Indigenous people is that in places where native people dominated wildlife and natural processes, ecosystems were more sustainable. They assume this was because Indigenous people were more in “tune” with the landscape and practiced cultural techniques that did not disrupt ecosystem processes.

His these is, as near as I can understand it, that all humans will exploit resources for their own personal gain and that when we paid natives for Buffalo hides they did too. So they aren’t that noble okay?

What is common in all these instances is low population and low technology. Change either of these factors, and humans everywhere, no matter their religion, race, or cultural identity, frequently overexploit the land.

The fallacy is saying because there were more wolves or more bison or whatever in times past when Indigenous people occupied a specific location, it was due to the people’s cultural values.

You see it was JUST A COINCIDENCE that there were more bison before white man came and destroyed tribal culture with their guns and firewater. And correlation doesn’t mean CAUSATION. Indians would have used up the bison too. Left to their own destructive devices. And when WE came and changed the culture they definitely did,

Let us examine, for instance, the common assertion that tribal people somehow sustainably utilized wildlife. It is widely assumed that white commercial hunters caused the demise of the western bison herds. This is such a widespread assertion that most people take it as fact, but particularly by Native American advocates.

Tribal people in North America were like humans throughout the world and demonstrated intelligence and self-interest and this often meant overexploitation of resources–when they had the capability to do so.

There is no doubt that commercial hunting provided the final nail in the coffin of wild bison. But a careful reading of early historical accounts of the western plains indicates that bison numbers were already in steep decline before significant commercial buffalo hunting began in the 1870s.

Once tribal people acquired the horse, and in particular, the rifle, bison numbers began to decline. Most tribes on the Great Plains had horses by the 1750s, and the typical “plains Indian” nomadic bison hunting lifestyle was in full swing by 1800.

You see the reason all those beavers were allowed to live until the 1800’s was that the white man hadn’t politely explained why they were valuable as hats. Once they did the natives were perfectly willing to exploit the population for their own gain.

The idea that Indians “used” all parts of the bison and didn’t “waste” wildlife is another myth. There are plenty of documented instances of tribes killing bison merely for their tongues and leaving behind hundreds and sometimes thousands of dead animals. How many bison were killed annually in this manner is unknown; however, it was common to take only the best parts of a bison if one anticipated encountering more bison in a few days.

Those wasteful Indians. I just wish R, Grace Moran were alive today to slash this article with her little red pen. Never mind that our best accounts of native life come from the period after which we had already destroyed and ruined their culture. Never mind that ascribing their greed to our own is blaming them for wanting to exist in the culture we transformed. Never mind that natives and bison (and beavers) lived together for centuries without using the other up.

I go through this detail to demonstrate that many of the assumptions and traits ascribed to the presumed “conservation ethic” of Indigenious people can be explained in other ways. No matter where they originate, humans have similar biological controls on their behavior. In general, all people seek to further their self-interest. And among more “primitive” cultures (I use that term to denote more limited technologies), the self-awareness of their actions on wildlife and natural processes was limited.

See we’re all humans. And native Americans were just as bad as us. That’s why it only took a little influence to get them to act like us. And since they weren’t really better than us. I don’t have to feel guilty. Nor do you.

Here endeth the lesson;

I am quite sure they well know how many irate natives voices and scholars are going to respond to this diatribe. I’m sure publishing this article is the equivalent of tapping the microphone and asking “Is this thing on?” They want to increase their readership when every irate reader shares this with three others.

Let them hear from you too.

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