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

Category: Beaver Book


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Skip Lisle instructing New Leaf Students at the beaver dam. 2008

Skip Lisle first came to Martinez in 2007 to pitch his skills at allowing coexistence with beavers. That was 19 years ago. I think he was 50 when he came to Martinez so and he had already been doing this work for twenty-five years. Lately I am feeling like an old beaver crone myself, but Skip is still going strong. Recently he teamed up with Patti Smith and Bev Soychak yesterday and made a big splash.

Beaver coexistence sought at Hinesburg Town Hall

Residents and biologists converged at the Hinesburg Town Hall on April 12 for a battle council. Biologist Skip Lisle and naturalist Patti Smith spearheaded the meeting, running a presentation on enemy hideouts, damage tolls and new weaponry to launch a counterattack.

The enemy in question: beavers. The ongoing battle stems from the inability to balance dam construction from beavers and people alike.

Beavers have been a nuisance to Vermont’s hydrology systems, accruing damages in flooding and infrastructure repairs, but remain a vital steward of the state’s wetland habitats. That’s why the Hinesburg Conservation Commission and the Vermont Beaver Collective, co-hosted “Beavers, Beavers, Beavers” to discuss more sustainable ways of parlaying with the semiaquatic rodents.

“Their habitats have tremendous value, so we want to try to fully exploit the values of beavers for the benefit of society and the natural world,” Lisle said. “But the only way we can do that is if we protect the infrastructure. We’re really kind of at war with beavers.”

It’s a war he has won many many times before, and one he has taught others to win. This article and others like it spread like wildfire across my beaver newsfeed last night so you know he got some press attention.

Beavers are considered both a keystone species and an ecosystem engineer because of the way they transform the landscape.

In Vermont, beaver dams create wetlands that filter pollutants before they reach Lake Champlain, slow floodwaters and provide habitat for many species. The longer a beaver wetland exists, the more diverse and beneficial it becomes, according to the Vermont Land Trust.

Patti Smith, a wildlife rehabilitator, highlighted some of those benefits in a video detailing two decades of her observations on the species. Smith raised orphaned baby beavers during the COVID-19 pandemic and said that beavers exhibit “playful and intelligent” behavior while building their dams.

“Beavers confer a whole host of benefits that make our world more livable for everybody and everything,” said Bob Hyams, a member of Hinesburg’s conservation commission. “Beavers make Vermont more resilient to the impact of climate change.”

Can’t argue with that. Where I will differ is in the name. The BEAVER DECEIVER is fooling no beaver. It’s obstructing them but not fooling them. The day our flow device became plugged and stopped working our father beaver rebuilt that dam higher.

He wasn’t fooled.

Lisle testified against that decision on April 10, 2025, in the House Committee on Environment and Energy, citing the financial and ecological costs of failed removal operations.

During the event, Lisle instead advocated for further implementation of the beaver deceiver, a device he designed to deal with beavers non-lethally. Lisle founded Beaver Deceivers International in 2001 and has implemented the devices across North America and parts of Europe.

“We spent years just building something, ripping it out, rebuilding it and the stakes were too high to ever give up,” Lisle said.

Each device is tailored to the physical characteristics of each dam site, and Lisle demonstrated their basic structure during his presentation.

A long pipe runs near the surface of the water and is covered with a square-shaped, fenced-in filter. The filter muffles the water flow as it runs through the pipe, subduing the sound that hinders beavers from continuing to build, Lisle said.

The devices allow water to keep flowing while the beavers are tricked into believing they’ve completed a job well done, while the beaver deceiver regulates water levels and damming behavior in a way that preserves the beavers’ habitats.

The Fish and Wildlife Department has installed more than 300 beaver baffles, devices similar to the beaver deceivers, across 3,000 acres of wetland habitat to protect beavers and minimize their damage, too.

Good for you Skip. There are enough beaver-savvy Vermonters to make this work

Bev Soychak, co-founder of the Vermont Beaver Association, encouraged community members to consider flow devices similar to the beaver deceiver rather than trapping, emphasizing that it’s possible to coexist with their wood-chucking neighbors.

“We’re here to encourage beavers to be able to thrive in their environments because of their benefits,” Soychak said. “Instead of killing that beaver, call us and let us do a beaver deceiver, and then you can build around it.”

I’d say with all of you hard at work on the problem your beavers have a fighting chance. If you can’t compromise in Vermont, where can you hope for peace?


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Tiffany Yap, a Senior Conservation Environmental Scientist for the Center for Biologic Diversity, just published a graphic novel on P-22’s amazing life with  a cameo from a very special guest star. I thought you’d want to know,,,

Tiffany Yap is a conservation scientist based in the San Francisco Bay Area. She holds a doctorate in environmental science and engineering and has published studies in Science, EcoHealth, and other scientific journals. Her work has been featured in major news outlets, including the New York Times, LA Times, San Francisco Chronicle, and NPR.

Living in SF I’d be very surprised if she didn’t know something about our urban beavers, but she’s youngish so it might be before her time, which give me a GREAT idea for a story. Ahem…Here’s the illustrator…

Meital Smith is an illustrator and artist from Seattle, Washington. She graduated from Cornish College of the Arts with a BFA in Design in 2021 and is currently pursuing an MAT at the Rhode Island School of Design. Meital’s work has appeared in The Lily, and in 2021, she self-published her graphic novella Yesh Lanu Machaneh, which documents her community’s experiences at her beloved summer camp, Camp Miriam.

Tiffany is especially interested in wildlife corridors that allow migration from on region to another, so you can see why she fell in love with P-22’s story. Hey I know an animal that can really help maintain high quality corridors. Are you thinking what I’m thinking?

Those neglected urban streams sustain a lot of foot traffic for migrating wildlife. And give them a nice place to rest and hide out during wildfire events. Just look.

Let’s be honest, we probably all owe our survival to beavers…

You can pick up your copy of this fun read


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Yesterday I started gathering donations for the silent auction at the beaver festival. Leila Philip, the author of Beaverland was very generous and made sure we would have two signed copies. Just in case you need persusading here is an exerpt to whet your whistle. I’m embedding the pdf so if you use the arrows on the bar below you should be able to click through and read along. Enjoy!

lithubPart Bear Part Bird Part Monkey Part Lizard_ On the Deep Weirdness of Beavers Literary Hub

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Serendipity is a word that describes how new things cross your path and then turn out to be related to totally different things that you had no idea about. Yesterday I got the annual letter from the Beaver Institute about their year end achievements and it had a new beaver lodge photo that I’ve not seen before. I thought, hmm that’s interesting.

And this morning I saw an article from the Saxton Library in Pennsylvania that they were doing a reading of the new book “The Lodge that Beaver Built” So of course I rushed right out to investigate and saw that the new mystery lodge image is from that book.
Hmm I admit I was intrigued, especially when I found out that it was released in late fall and escaped my notice! Would it be full of beautiful images or misleading facts? Was it about the lodge because the author mistakenly thought that beavers live IN the dam? Was it full of images of nutria? No. it’s perfect. Except for the title which I feel really should be the POND that beaver built. But that’s just me.

Enjoy this reading from UCSLD in Oregon.

So of course I went searching for the author Randi Sonenshine and found out that she is represented by  literary agent in ORINDA. Umm. That’s awfully close to home. I’m thinking she’d love to know about the beaver festival and donate a copy or two, aren’t you?


I also noticed that she refers readers to the Beaver Institute and Beavers Wetlands and Wildlife at the end but doesn’t mention us or the festival. Because honestly, why mention a children’s program in California? I assume that’s just an unintentional oversight.


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Yesterday we got some nice new acclaim for Leila’s book and a follow up story about the beaver pond-snow mobile controversy in New Hampshire. I was charmed by both, but couldn’t help feeling that the Martinez beaver story would have been a prime candidate for sharing on the popular Science Friday hour.

Not to toot our own horn too much but Ira would have LOVED us!

How The Humble Beaver Shaped A Continent

The American beaver, Castor canadensis, nearly didn’t survive European colonialism in the United States. Prized for its dense, lustrous fur, and also sought after for the oil from its tail glands, the species was killed by the tens of thousands, year after year, until conservation efforts in the late 19th century turned the tide.

In her new book, Beaverland: How One Weird Rodent Made America, author Leila Philipp tells that tale—and the ecological cost of this near-extermination. But she also has good news: beavers, and their skillful engineering of waterways, have the potential to ease the fire, drought and floods of a changing climate. She talks to Ira about the powerful footprint of the humble beaver.

Nice job! Of course I would add that the problem with ripping out a beaver dam isn’t just that it’s wrong for beavers, it’s also a waste of time. Either those beavers will fix it and you will have wasted manpower. Or new beavers will move into your ‘vacancy’ sign and you’ll have to do it all over again.

What I want to know is why wasn’t Martinez on science friday??? I’m pretty sure you remember this great story. It’s a hallmark Christmas movie just waiting to happen. I would definitely watch it ever year if you just tweaked the ending a bit.

In A New Hampshire Town, It’s Snowmobilers Vs. Beavers

People pitched their ideas for restoring the pond and keeping the bridge safe. Mark Dube even came up with his own, inspired by his time working on railroads in Northern Maine that had issues with beavers plugging nearby culverts.

By the end of the meeting, Dube was exchanging contact information with the rest of the committee to coordinate a proposal.

Some residents are determined to restore the pond. But to install a new dam or make other changes, they’ll need to get a permit from the state, and that could be a long shot. Their best bet might be to wait, and hope another family of beavers moves back in.

We would have been amazing on Science Friday. Although I guess I’m glad our stodgy council didn’t receive any more fame than they did from the whole struggle. You should never get to look like heroes in repeated news stories just for wanting to kill beavers.

Which reminds me it’s a great time to remember this old favorite, so you have something to carol to or sing around the piano tonight. A Merry time indeed!

On the first day of Christmas my true love gave to me
A Dam in Alham-b-ra Creek

On the second day of Christmas my true love gave to me
Two adult beavers and A Dam in Alham-b-ra Creek

On the third day of Christmas my true love gave to me
Three watching women<
Two adult beavers and
A Dam in Alham-b-ra Creek

On the fourth day of Christmas my true love gave to me
Four furry kits
Three watching women
Two adult beavers and
A Dam in Alham-b-ra Creek

On the fifth day of Christmas my true love gave to me
Five City Council!
Four furry kits
Three watching women
Two adult beavers and
A Dam in Alham-b-ra Creek

On the sixth day of Christmas my true love gave to me
Six baby ducklings
Five City Council!
Four furry kits
Three watching women
Two adult beavers and
A Dam in Alham-b-ra Creek

On the seventh day of Christmas my true love gave to me
Seven on committee
Six baby ducklings
Five City Council!
Four furry kits
Three watching women
Two adult beavers and
A Dam in Alham-b-ra Creek

On the eighth day of Christmas my true love gave to me
Eight eager muskrats
Seven on committee
Six baby ducklings
Five City Council!
Four furry kits
Three watching women
Two adult beavers and
A Dam in Alham-b-ra Creek

On the ninth day of Christmas my true love gave to me
Nine children laughing
Eight eager muskrats
Seven on committee
Six baby ducklings
Five City Council!
Four furry kits
Three watching women
Two adult beavers and
A Dam in Alham-b-ra Creek

On the tenth day of Christmas my true love gave to me
Ten news reporters
Nine children laughing
Eight eager muskrats
Seven on committee
Six baby ducklings
Five City Council!
Four furry kits
Three watching women
Two adult beavers and
A Dam in Alham-b-ra Creek

On the eleventh day of Christmas my true love gave to me
Eleven cameras snapping
Ten news reporters
Nine children laughing
Eight eager muskrats
Seven on committee
Six baby ducklings
Five City Council!
Four furry kits
Three watching women
Two adult beavers and
A Dam in Alham-b-ra Creek

On the twelfth day of Christmas my true love gave to me
Twelve hatching turtles
Eleven cameras snapping
Ten news reporters
Nine children laughing
Eight eager muskrats
Seven on committee
Six baby ducklings
Five City Council!
Four furry kits
Three watching women
Two adult beavers and
A Dam in Alham-b-ra Creek

BEAVER FESTIVAL XVII

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