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

Month: October 2020


If you’re like me, you can see right away what’s wrong with this headline. Of all the neighbors I’ve had in my life, with their noisy parties, weed-smoking teenagers and squealing tires, beavers by far have been my favorite.

Beavers: Good environmental stewards, but lousy neighbors

EVERETT — In the Lake Chaplain watershed, beavers help ward off the impact of climate change and make streams more suitable for salmon.

But in the guardian of Everett’s water supply system, the creatures’ love of blocking running water is problematic.

The beavers stuff culverts with sticks, blocking water flow and fish passage. They build dams along the city’s service roads, flooding them. The wild, semi-aquatic rodents leave their mark well beyond Everett’s boundaries.

All over Snohomish County, beavers clash with the human-built environment when they set up shop on private properties or next to roads, causing flooding and damage to homes.

I’m so old that I can remember when Snohomish county was famous for resolving beaver conflicts by installing flow devices and protecting culverts. Now they just whisk the animals away and hope it will last for a few pages on the calendar. Jake Jacobsen used  work for public works in Snohomish. He went on to collaborate with Skip Lisle and Michael Pollock and was my guiding light during my time on the subcommittee telling me how to deal with our beavers.

Well now the Tulalip tribe just takes them away.

Since 2014, wildlife biologists working with the Tulalip Tribes have moved beavers from areas in the Snohomish River watershed, where they’re considered nuisances, to new homes in Mount Baker-Snoqualmie National Forest.

Last month, the national forest signed an agreement with the tribes to expand that work to the South Fork of the Stillaguamish River watershed — a critical habitat for endangered fish like Chinook, steelhead and bull trout, Tulalip chairwoman Teri Gobin said.

Just to be clear, I’m not saying the tribe does anything wrong or isn’t careful about the beavers. I’m just saying that the fact that new beavers come back year after year means that you are better off actually SOLVING the problem than simply moving it.

And beavers making a difference in the greenbelt in residential areas is GOOD news for cities. Increasing biodiversity, reducing erosion, improving water quality and a creating social cohesion for residents.

In the Snohomish watershed, the tribes have relocated close to 200 beavers.

The animals don’t always stick around permanently — but that’s not the tribes’ main focus.

Even if beavers abandon their new homes, they usually build a dam first, benefiting the surrounding habitat and hydrology. And the next beaver family might build on what’s already there.

The relocated beavers can create over 61,000 gallons of new surface water storage along a 328-foot stretch of stream, according to Benjamin Dittbrenner, who completed a dissertation based on the project for Northeastern University in 2019. The groundwater table can nearly double in size, as well.

Yes, Ben took over for Jake when the new boss decided flow devices were a mistake. That was 200 beavers ago. Let’s say 40-50 beaver families in 6 years.

In the Lake Chaplain watershed, the city of Everett has taken a different approach with persistent beaver residents.

“We have a lot of really great habitat and we normally welcome them,” senior environmental specialist Anna Thelen said. “But we do need to keep some roads clear of water for employees, trucks and what not.”

So staff do their best to mitigate the negative impacts beaver damming has without entirely removing the structures. If the beavers build a dam along a service road, staff will make a notch so water can get through.

“Sometimes (the beavers) are OK with the compromised water level, so they don’t feel the need to put the sticks back,” Thelen said.

It’s a delicate balance — and sometimes staff end up notching the same dam again and again. The work has gone on for years, and the city just received another five-year permit to continue.

Now THAT is work I admire. A commitment to coexistence. Deal with the beavers you have and prevent the issues that might arise. I feel the influence of years of Jake in this policy.

“They are determined little guys,” Thelen said.“… And we’d like to encourage them to stay.”

 


Tuesday night was beaver night in the city council in Oakley. Their meeting started with a presentation from Flood Control about the pesky beavers that built the dam in Marsh Creek and were subsequently shot. They assessed the dam as raising the water by a whopping 7 inches and restricting their 50 year flood plan for a particular segment of creek 400 feet upstream of the dam. You can watch the whole thing here, and the presentation is the very first part after the pledge of allegiance, but this was my favorite part of the meeting.

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It’s nice to know Martinez made some ripples in the world, although clearly the head of flood control thinks beavers live IN the dam. Sign. Our work is never done.

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.

Robin grabbed this as her favorite photo for obvious reasons.

I was intrigued by the range of questions, especially ¿Para qué sirven los castores? (What good are beavers?) and the even more intriguing ¿Son los castores un icono de conservación y educación ambiental?

Are beavers and icon of conservation and environmental education?

Let me save you some time gentlemen. YES. Yes they are.


The public meeting of USDA and CDFA last night was a pretty massive yawn, but I thought this was just fascinating. Who knew that Placer had their own beaver trapping, coyote killing bear baiting program? I wouldn’t have guessed but that makes the 7 times higher stats for that county VERY interesting.

Other than that it was a bunch of pale whites apologizing for their audio and extolling people to be civil about all their murders. I’ll attach my comments at the end. And I hope you still send yours.

Meanwhile Stephen Colbert wants beavers to vote. And I couldn’t agree more.

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EIR EIS Public Comment

They could have just described beavers and left it at that. Don’t you agree?

7 Keystone Species — and Why they Matter for Our Planet

“Keystone species have low functional redundancy,” explains biologist Raquel Filgueiras of the conservancy group Rewilding Europe. “This means that when populations of these species decline or disappear, there are very few or no other species that can fulfill their role. Ecosystems then degrade, and sometimes completely collapse.”

Wolves are one of many keystone species that humans have viewed as pests or, even worse, enemies to control or remove.

The wolves’ return also aided beavers. North America’s largest rodents are essential ecosystem engineers, and they now had a plentiful supply of leaves, roots, and bark to eat, and wood for building dams.

Yes, yes, wolves are the handmaidens of beavers in that they keep the elk away from the fresh green shoots so that they stick around to make beaver food. Then they can build their dams and restore stream function. Yeah beavers.

Beaver dams can be a nuisance for humans: They may divert waterways where we don’t want them and cause flooding; the trees beavers cut down can destroy our sense of the picturesque.

But beaver dams play a grander role in the ecosystem that we may not comprehend. They slow water flow in streams, which can help reduce erosion and provide water during drought. The flowage behind these dams creates wetlands, which can absorb seasonal flooding. And the wetlands filter water, replenishing aquifers and producing cleaner water for all.

So tell me, does this matter to any other animals besides the beavers themselves?

Other mammals, fish, amphibians, insects, and birds depend on the beaver’s dam-building. Some 85 percent of North American wild-animal species rely on wetlands — including many threatened and endangered species.

The beavers’ work is also becoming recognized as key to fighting wildfires. Not only do their dams retain water in the land-scape, but channels dug by beavers -appear to act like irrigation canals, keeping vegetation too wet to burn even during droughts. These wetlands become a beaver-generated safe space for frogs, salamanders, birds, and other animals to wait out a fire.

Come to think of it. Beavers are the ONLY keystone species that have been shown to impact stream health, biodiversity, fire resilience and reduction of pollution. That seems pretty dam important. The article goes on to discuss cactuses and prairie dogs but honestly, our interests are limited for obvious reasons.

Worth A Dam Comments.

Now then you might want to just remind yourself of these facts when you put together your comments for the USDA which is meeting tonight in on the first of their open  forums for discussing the impact of their actions on wildlife species in California.

The meeting is zoom accessible from 5:30 to 8:30 tonight. They won’t be posting the link to the meeting until 5 pm but it will be posted here.
Give them lots to think about tonight. You can send your comments HERE and I hope you do. Beavers need you.

CDFA_Scoping_Meeting_Webinar_Agenda

 


That’s Canada for you. Even their storm dreams have beavers. Don’t believe me?

Police rescue beaver from Calgary storm drain 

 

Calgary police  responded to an unusual rescue call this Thanksgiving weekend.

Const. Chris Martin said he and his partner received a call around 11 a.m. Sunday that a beaver was stuck inside a storm drain near Harvie Passage. The beaver was behind a heavy gate that was secured with large bolts.

“We ended up calling City of Calgary waterworks and had them bring out some wrenches,” said Martin.

Something to be thankful for. Imagine celebrating the foundation of your country with some turkey and stuffing or whatever Canadians eat, and then taking a call where you’re needed to go rescue a founder of said country. Stranger things have happened. But not many.

“And then as luck would have it, there were some surfers and kayakers in the area who were wearing wetsuits and they were able to come help us get the lower parts that were pretty deep in the water and then to help us get the grate off safely.”

Sure. You know how it happens. Sometimes you just get a helping hand from a passing band fo surfers in a wetsuits  and you enlist their help to rescue a beaver. Can I live in Canada too?

Martin said he’s rescued plenty of cats and dogs, and even a turkey and a moose in the line of duty, but this was the first beaver he’s had to save. He said the beaver swam away in the direction of a dam just north of the storm drain.

“He got out and disappeared happily into the river.”

Now tell the truth Martin, you can’t deny that this wasn’t your best day at work EVER. What a story for the kids. And the adults. And all the undecideds. City workers and police take some pretty rotten calls on holidays but this had to be one of their favorites.

I couldn’t find any video of this rescue, I guess you don’t bring a cellphone in your wetsuit. But this is close. From this March.

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