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

Tag: Beaver Deceivers


We’re an equal opportunity employer here at beaver central. Yesterday I  wrote about Mike Callahan of Massachusetts and today I’m writing about Skip Lisle of Vermont. There was a nice article about the current drought with him (and beavers) featured.screen-shot-2016-10-04-at-6-10-06-am

The Ecological Impact Of The Current Drought

Scenes from the West’s five-year drought are striking – the cracked mud at the bottom of a dry reservoir, forests in flames. Wonder what a drought would look like in the Northern Forest? Just look out the window.

This is the first time that any part of New Hampshire has been in an “extreme drought” since the federal government began publishing a drought index in 2000, said Mary Lemcke-Stampone, the state’s climatologist. “Using state records, you have to go back to the early ‘80s to get the extreme dryness we’ve been seeing in southeastern New Hampshire.”

Other parts of the region have been abnormally dry for some time. New York State has issued a drought warning for the Southern Tier and Western New York, which is an extreme drought, while the Adirondacks remain “abnormally dry” according to the U.S. Drought Monitor.

Skip Lisle of Beaver Deceiver International, a beaver-control company that uses non-lethal means, said that beavers have droughts covered. “All those little dams and reservoirs keep water on the landscape,” he said. They have floods covered, too, as those same dams and reservoirs release peak flows slowly.

Intact ecosystems, Lisle said, have a way of coping. “Droughts are good. Floods are good. Dynamism is good. It’s been going on forever.”

Yes beavers are good for drought and Skip is good for beavers! Keep doing what you do saving the water-savers and we’ll do our best to write about it here. I’m curious about our own beavers at the moment. Will the arrival of autumn prompt them into starting an actual dam? They have no yearlings to help them so it much be a harder job. Although I guess all beavers everywhere have started thus at some point in their furry lives.

I hope I’m not jinxing anything by making them a video but I think we have to behave like Martinez has beavers because last time I checked it does. And it rained all day yesterday so what’s a girl to do?


First we should give MORE kudos to our beaver friends at Fur-bearer Defenders who have strewn a path of beaver deception around the municipality of Mission in British Columbia just outside of Vancouver, installing 9 beaver deceivers to control flooding in culverts.

Beaver deceiver prevents dams from being built

A beaver deceiver being installed in Mission. Each unit saves the municipality thousands of dollars annually. Submitted phot

Gosh, I’m so old I can remember when Adrian Nelson had just gotten married and nervously installed his very first one after chatting a lot to Mike Callahan and scouring his DVD. And now these installs are practically a piece of cake! Delicious, effective cake that they actually talk an entire city into paying for!

The non-profit group approached the district with a simple, non-lethal alternative for managing flooding concerns associated with beaver activity: build a wire fence around the culvert intake, interrupting the beavers’ natural instinct to build where there’s current and the sound of flowing water.  “They work awesome,” said Dale Vinnish, public works operations supervisor. “We don’t have to trap beavers. They moved elsewhere. They’re not causing a problem.”

The nine “beaver deceivers,” at $400-$600 apiece and built in one day, save the district thousands of dollars, because workers no longer have to pull apart dams.  Previously, the municipality would break down two to three dams daily, several days a week, in addition to paying for the capturing and killing of about a dozen beavers annually.

“If we weren’t trapping, we were going in continuously to break apart the dams,” said Vinnish.

Great work Fur-bearer Defenders! We are entirely impressed that you are easily giving Washington State a run for it’s money as the beaver-management champion of the northern hemisphere. Go Mission!

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New footage from our famous San Jose beaver friends. Love the ‘urban safari’ feel of this video. Sadly if this is momma beaver, I’m not seeing any teats, and that means no silicon valley kits this year!



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Next, a nice column on ‘Extinction Events’ from Minnesota.  His point is climate change, but my point (as always) is beavers!

For instance the pond created behind a beaver dam becomes the habitat for a wide variety of plant and animal species. Remove the beaver engineers and the entire ecosystem collapses.

It’s about time we start to realize the number of species that are displaced or wiped out when beavers are removed. Trickle-down economies work both ways. I wasn’t happy with this later sentence “Without the stream, there could be no beaver dam” because that’s not exactly true. I’ve heard of beaver creating ponds from tiny springs, so that the big beautiful pond becomes the only water in a desert. Certain ephemeral streams (like we have here in California that dry up in the summer) wouldn’t dry up if we had enough beavers. I kindly sent him this Chumash legend:

Author Jan Timbrook who is a curator for the Santa Barbara museum of natural history described this in her book ‘Chumash Ethnobotany” has some very interesting things to say about beavers:

“A willow stick that had been cut by a beaver was thought to have the power to bring water. The Chumash would treat the stick with ‘ayip ( a ritually powerful sbustance made from alum) and then plant it in the ground to create a permanent spring of water.”

Jan Timbrook, Chumash Ethobotany p. 180

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And on to the ugly. I’ve been sitting with this story a couple of days, but its fairly unavoidable and we better deal with it. This is the kind of negative advertising I hate, even more than I hate the Belarus story. Ultimately Americans value roads much more even than we value human life. Now every city will be more tempted to tell property owners they’re liable for beaver dams. Call me crazy, but it seems like if you’re worried about the stability of a dam, the smart thing to do is to reinforce it!

Flooding damages road in West Warren MA