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

Tag: Sharon Brown


By all accounts yesterday was a splendid beaver day, with presenters from around the world really swinging the bat hard for beavers. To the right is Frances Backhouse posing with conference organizers Scott McGill and Mike Callahan (in disguise). Here are some highlights from yesterday Sharon and Owen Brown of Beavers: Wetlands and Wildlifeand were presented with the lifetime achievement award, Skip did a very well received presentation on the history of the beaver deceiver (summarized by Malcolm Kenton) and here’s a brief run through of what I’ll be presenting today.

The only mess-up of the day is that Emily Fairfax didn’t get time to present her awesome fire dissertation – It was a packed schedule and either things started late after lunch or James Wallace couldn’t squeeze her in – but she was hoping to be able to say something about it last night and in her connections with people She was a good sport of course and Lord knows we’ll be hearing from her again soon!

[wonderplugin_video iframe=”https://youtu.be/BqsB0441TdY” lightbox=0 lightboxsize=1 lightboxwidth=960 lightboxheight=540 autoopen=0 autoopendelay=0 autoclose=0 lightboxtitle=”” lightboxgroup=”” lightboxshownavigation=0 showimage=”” lightboxoptions=”” videowidth=600 videoheight=400 keepaspectratio=1 autoplay=0 loop=0 videocss=”position:relative;display:block;background-color:#000;overflow:hidden;max-width:100%;margin:0 auto;” playbutton=”https://www.martinezbeavers.org/wordpress/wp-content/plugins/wonderplugin-video-embed/engine/playvideo-64-64-0.png”]

Check out these great notes by Malcolm on Skip’s Presentation, Worth A Dam’s Emsissary Doug Noble said he stole the show.

Skip Lisle, inventor of the “Beaver Deceiver,” speaking at #BeaverCON2020:
– The Beaver Deceiver is a flow device, but not all flow devices are beaver deceivers!
– We’re like moose — we like wetlands and we know where to turn to make healthy, productive ecosystems. We need to develop a common language & history.
– We’re lucky to live at a time when there are tremendous opportunities to save society a great deal of money with creative long-term remedies and create tremendous habitats.
– There’s a lot of pushback out there because people are used to wetland areas being drained – the culture associates wetlands/swamps with stagnation, disease, “wasted land” and various unpleasantness. So many places inefficiently keep killing beavers in the same places over and over again.
– In my career at the Penobscot Nation, my friend and I kept trying and building junky flow devices until we came up with the successful trapezoidal concept. The trapezoid had to get larger because they’re attached to the dam. Dam-leak separation makes a flow device more robust. Though they’re smart, beavers don’t do much deductive reasoning and can’t grasp the hollowness of a pipe.
– There’s a lot of controversy about where flow devices can work, but I don’t have any problem with zero inches/feet of water. A dry flow device can do a great job protecting beaver habitat upstream. Getting people to stop killing beavers is another issue — there are wide-open trapping seasons in most of these places.
– Every site is different so I need to put in a lot of thought as to what device best suits the place. Some culvert protectors need floors and some don’t.
– We’ve done enormous damage to wetlands after draining them, but beavers can repair all that if we just stop killing them. One beaver in one month (before moving on) brought so many birds to a site I worked on that weren’t there before. It’s miraculous! Remarkable wildlife viewing spots can be created in very short order. Every town can do this.
– I build simple wood structures to guide beavers’ damming — I don’t use the term “beaver dam analog” because it doesn’t need to look like a beaver dam to get them started.
– You can have a long beaver dam parallel to a road and have the water level much higher than the road, with a few pipes through the dam and under the road, and the road stays dry.
– There’s also an aesthetic and spiritual value to keeping beavers on the land — they’re dynamic, fascinating and all different. They bring a lot of joy to our lives.

A packed house with Doug Noble sitting next to Sherry Guzzi of Tahoe!

[wonderplugin_video iframe=”https://youtu.be/zJ-9aQDK77U” lightbox=0 lightboxsize=1 lightboxwidth=960 lightboxheight=540 autoopen=0 autoopendelay=0 autoclose=0 lightboxtitle=”” lightboxgroup=”” lightboxshownavigation=0 showimage=”” lightboxoptions=”” videowidth=600 videoheight=400 keepaspectratio=1 autoplay=0 loop=0 videocss=”position:relative;display:block;background-color:#000;overflow:hidden;max-width:100%;margin:0 auto;” playbutton=”https://www.martinezbeavers.org/wordpress/wp-content/plugins/wonderplugin-video-embed/engine/playvideo-64-64-0.png”]


International beaver day did not disappoint. It produced an excellent article from Wildlife Defenders, some amazing video and one classically civic story that will reminds us all of our humble beginnings. Let’s start with the fun stuff for a change and end with the call to action.

Coexisting with Beavers

Today is International Beaver Day, so let’s celebrate my favorite ecosystem engineer and the ways that Defenders helps people coexist with beaver.

First, Why Beaver?

 

Beavers are an important part of a healthy wetland and forest ecosystem. Beaver cut down trees and shrubs, eat wetland plants, and build amazing dams and lodges. These activities raise water levels, slow water speed, and change water direction, creating a dynamic wetland complex. In doing so, they can increase a wetland’s area, biodiversity, and water quality, as well as maintain more stable water temperatures.

Isn’t that an amazing photo? Yesterday I looked at with adoring eyes and thought it probably wasn’t in a natural setting because the water under mom looks very shallow. It’s unlikely a beaver would put herself in such inescapable conditions if there were another option. I looked up the photo credit (Chris Canipe)  and found this video of beaver relocation which me smile very much,


So cute going to their new home, which means my theory about an ‘unnatural setting’ is likely correct. It’s a great article though so lets take in some more.

Beaver are an important ecosystem engineer and the habitats they create benefit many native species. In the west, for example, 90% of species are dependent on wetlands, such as those created by beaver, at some point during their lives. In beaver ponds, freshwater fish can find more food or a larger variety of food. They can also spend the winter in the deepest parts of a pond. The shallow pond areas are great for young fish to find food and shelter while they grow. Migratory birds can use beaver ponds as “stepping stones” while they migrate to and from summer breeding grounds. Each pond can also support several different kinds of birds with the large variety of habitats created by damming, flooding, and tree felling. In spring, beaver ponds are a nightclub for amphibians, whose eggs and young tadpoles like the warmer water temperatures and shelter provided by vegetation near the shores.

Beaver are so important and have so many benefits for other species, including many species that are now imperiled, that Defenders works to restore them to places where they will create and enhance habitat for all the other critters we also care about. In the Rocky Mountains, boreal toad and native cutthroat trout are some examples of the imperiled species benefiting from our beaver restoration projects.

Yes they are,  And given that fact and the fact that the title of this article is “COEXISTING WITH BEAVER” it would be a mistake to focus on relocation of the animals wouldn’t it? Even with live trapping instead of killing?

It’s not easy being a beaver in some places. In urban areas, such as cities or towns, beavers sometimes cause conflict by building dams which cause unwanted flooding, or by taking down charismatic trees which people value. In many cases these “nuisance” beavers are killed because of their actions, but sometimes simple tools can be used to prevent these conflicts, create more acceptance of their presence by people, and keep beaver where they are. For example, to prevent beaver from felling trees they can be wrapped in fencing or painted with a mix of sand and paint. Beaver, just like us, don’t like the “gritty” feeling of sand when chewing. To minimize flooding, flow-devices can be installed which limit the water level of beaver ponds by using a combination of pipes and fencing.

 

Oh alright then. I’m a very picky beaver consumer. But I do like happy endings and stories of beaver successes. Go read the entire article if you need more good cheer and I’m going to save one treat for last. Next up is a variation of the story we’ve all come to know and hate – this time in Schenectady NY.

Schenectady officials decide to trap beavers after Woodlawn Preserve flooding

Problems have steadily mounted over the past half-decade as beavers have set up stakes, including blockage of a drain pipe that ran underneath the railroad. City workers were being deployed nearly every other week to clean out the culvert. A series of beaver-built dams also led to elevated water levels in the basin.

Stakeholders met with beaver consultants, who recommended a trapping company.“

Trails were so flooded, people couldn’t fish,” said Janet Chen, president of the nonprofit Friends of the Woodlawn Preserve.

Oh no! You mean there as so dam much nature in your nature park that it is inconvenient to exploit it? Gosh, no wonder you called in the Friends Enemies of Woodlawn preserve use. Gee I wonder what the trapping company will suggest?

“We observed a very high amount of beaver activity in the preserve,” said City Engineer Chris Wallin. “It was determined we needed to trap the beavers.”

While the 135-acre site serves as a nature preserve — part of the Albany Pine Bush ecosystem — the site has more practical roots as a retention pond first constructed in the 1950s to alleviate flooding in the city’s Woodlawn neighborhood.

You know how it is. We never intended this park to have nature IN it. Just to provide somewhere for the water to runoff when it floods. Beavers are icky, and never mind that it’s spring and the family is having babies.

Trapping beavers is rare and largely ineffective, said Sharon T. Brown, a biologist and director of the Dolgeville-based non-profit Beavers: Wetlands & Wildlife (BWW).

I’m sure that’s a typo or miscommunication. She didn’t mean trapping is rare right?

“It’s often counterproductive, and will create a vacancy,” Brown said. “It’ll probably be re-settled unless they want a cycle of trapping over and over again.”

Water devices like the “Beaver Deceiver” — mesh enclosures paired with a series of pipes running under or through dams — are a better way to prevent flooding and avoid harming the creatures, Brown said.

“There’s no reason not to consider these.”

Good job Sharon, and congratulations to the reporter for getting her input. There’s no reason NOT to consider nonlethal solutions, is there? Oh yes there is! Beavers are icky! And we’re the enemies of the preserve! Just look at our outfits! Shhh wait, this is my favorite part!

Friends said the device was cost-prohibitive. Chen said the beavers haven’t historically served as a public draw to visit the site.

“People to go to the preserve generally go to take a walk in the quiet,” she said.

That’s right. People come to a park because of the QUIET!  Like Thoreau on the famously quiet Walden pond. They don’t want some icky rodent tail-slapping in the water and disturbing their solitude. They want peace! Something tells me Ms. Chen is going to get a letter to make her own life of quiet desperation  a little more interesting in the very near future.

And besides, people never visit a park just to see beavers.

 

Okay, I promised a treat if you  were patient and here it is. Chris  Carr from the beaver management Forum shared this yesterday taken with his night camera. This is why beavers need to carry around those few extra pounds.

 


Cheryl sent out notices for our beaver festival yesterday. Which means it’s definitely happening and I’m fully entitled to panic now. Feel free to join in or plan now to be implored for assistance.  I was relieved yesterday to see that we’re not the only ones celebrating beavers.

Great Swamp Conservancy celebrates beavers

Canastota, N.Y. — Each year, the Great Swamp Conservancy honors a native animal, and 2019 is the Year of the Beaver (Castor canadensis) because these residents of the GSC are essential to the wetland complex.

To kick off this year, on March 9 at 2 p.m., an educational nonprofit called Beavers: Wetlands and Wildlife (BWW) will trek from Dodgeville over to the Great Swamp to teach about a species that builds the land’s best life support system.

This keystone species doesn’t adapt to its surroundings like most; rather, it alters and creates a habitat that aids in their survival and the survival of other species in the area. BWW believes beavers are an important ally in solving the earth’s major environmental problems.

Guests are invited to come to the swamp to receive expert advice on how to coexist with nature’s most intuitive engineers. Tickets may be purchased at the door for $4 for nonmembers and $3 for members.

Excellent! I’d be thrilled to come listen to Sharon and Owen talk about beavers! I would be delighted if 2019 was the year of the beaver in every state and Canada. Wistful sigh. We’ll get there eventually I think. I mean after we celebrate the year of the pig and the rat you’d think we’d even get to beaver.

I was very pleased to read this article from Oklahoma of a landowner who was actually happy to have beaver settle into his land. Yes happy!

The World Around You: Young beaver finds a new home at a small pond

It’s about time David John had some water in his pond up by Skiatook. It was dry most of the summer, and in a way that makes the latest development at the pond that much more interesting.

It’s an expert developer. A young beaver.

Nobody knows how to collect and save water like a beaver, although even they can be chased out by drought.

February and March are dispersal months for beavers in Oklahoma. A number of things might cause a beaver to leave its colony, but youngsters often are pushed out to make room for the next litter.

My goodness.  I didn’t see that coming. Joy at a beaver arrival in the Sooner state, Well, well, well.  Of course the columnist has to repeat the story about beavers being pushed out which we know they are not, but still. That’s pretty nice to read from that part of the world.

Remarkable engineers, they are famous — or infamous, depending on your situation — for using sticks and mud to build dams or stop the flow of any trickle of water escaping the stretch of water where they want to live. Anyone who has waded through a marsh or other wetland has stumbled across — or into — the systems of canals the beavers clear and travel to connect deeper pools and expand their range.

It’s always interesting when a beaver arrives because something is bound to be developed.

I was entirely hopeful when I read this article until I looked at the photo. That sure looks like a kit to me. I wrote the reporter in alarm saying I didn’t think that was a disperser who moved in but an orphan who’s parents had been lost or killed. She thanked me for my concerns and assured me that the beaver was older than it appeared in this photo and was building a lodge. Hmm. Maybe I’m crazy.

Lord knows beavers aren’t generally safe anywhere in the state so this one has a better chance than most, right?

This was a nice little film from Scotland – all of 5 minutes with a fine shout out to beaver. If you need something peaceful on your monday morning I’d start with this.


Lots more headlines this morning about the Wisconsin Beaver-trapping bruhaha. One of them titled “Beaver-drowning traps removed” which is the greatest indication I know that someone from PETA is pushing the story forward. I am a very picky advocate, so I want to demand  “so if the beavers were instantly crushed and not drowned, that would be okay?” But I guess there are a lot of right ways to be a beaver advocate. And not wanting animals to suffer is certainly one of them. I of course want them to live, right where they are, and do good things for our waterways and wildlife.

Meanwhile, I was pleasantly surprised this morning to see this headline from the Times-Telegraph in Herkimer, NY.

Local Beaver experts present at Oregon conference

CaptureDOLGEVILLE, N.Y. — Owen Brown, president of Beavers: Wetlands & Wildlife, and Sharon Brown, BWW biologist, presented “Forty Years Working for Beavers” at the State of the Beaver 2017 conference in Canyonville, Oregon, in February.

They represented Beavers: Wetlands & Wildlife, an educational non-profit based in Dolgeville, that was inspired by Beaver Woman Dorothy Richards, who studied the species for 50 years.

This, the fifth State of the Beaver conference, attracted 200 participants from many states as well as from Canada, Germany, Wales, England and Scotland. It was sponsored by the Cow Creek Band of the Umpqua Tribe, and held at their Seven Feathers Casino.

“It was a special place,” said Owen Brown, “and a special gathering of people who are interested in the animal that can help solve our most serious environmental problems.”

By building dams, beavers restore wetlands that increase biodiversity, decrease damage from flash floods and greatly reduce water pollution.

Beavers: Wetlands & Wildlife solves conflicts between people and beavers so that the beavers and their beneficial wetlands are saved.

The theme of this year’s conference was “Beaver — Agent of Regeneration.” After the event, the Browns accompanied Mike Callahan, of Massachusetts-based Beaver Solutions, and Vanessa Petro, an Oregon State University biologist, to see a beaver flow device at a forested wetland near Corvallis, Oregon.

Whooohoo! Great job Sharon and Owen! If only every presenter at the conference showed up in their local paper after coming back from the conference.  There would be such a glut of good beaver news I wouldn’t know where to start first! I’m sorry I missed their presentation and am lucky I was able to get the meticulous notes Sherry Guzzi took there and hear all about it. I went looking for the summary of their presentation this morning and found that the website had already been updated for the 2019 conference.  Way to plan ahead guys. Reserve your spot today!


 

Yesterday I got to have one of my favorite conversations of the year, when I talked with Amelia Hunter about the beaver brochure for this year’s festival. I usually have a few ideas that I ping off her like a cheerful artistic cell tower. This time I was interested in showing beaver work, water, and some background. In fact I thought the MIT class ring was a perfect place to start.

Tg7T6AkWe got talking about the skyline in the background and Amelia suggested wouldn’t it be cool to replace it with Martinez landmarks instead? Since it was our tenth bea-versary. What an awesome idea! I suggested the John Muir House and the arch/rainbow bridge down at the wharf. She was intrigued and said she’d start playing. We are so lucky that she still wants to help us after SO many years.

I can’t wait to see how this turns out!


It’s always feast or famine around here at beaver central. A trickle of news stories thru the week and then a DUMP of beaver news all at once. Maybe it’s something about Friday being less important than the other news days, but buckle up because we have lots to talk about.

The first is the long-awaited story from Charlotte North Carolina, and I dare say the most progressive look at beaver in that part of the South since I’ve been on  the beaver-beat. Wen the article appeared it aired with a very  special photo which I of course captured for your viewing pleasure before I made sure it was corrected.

Capture

On a quiet fall night on the Catawba River, a beaver dam stopped a potential disaster. The dam was all that stood between a sewage leak and the river that supplies much of Charlotte’s drinking water.

“A beaver dam strategically located contained the spill,” the utilities report stated. Beavers were the heroes on this day, and can benefit local ecosystems, but they are not always so helpful.

Beaver trappers in Mecklenburg County say that the rodent can become a nuisance. One beaver dam, for example, covered up the manholes to underground pipelines, preventing repair crews from entering. To curb their effects, the state has a beaver trapping season. A beaver is typically killed in the trap.

Hmmm fine beginning and intriguing angle linking it to the sewage spill. Now lets get to some more discussion of this issue.

Sharon Brown, a biologist from Beavers: Wetlands and Wildlife, a national beaver advocacy group, said that once a colony of beavers is removed, a new colony typically will move in sometime in the near future.

Some towns, like Martinez, Calif., near the San Francisco Bay area, have petitioned local governments to install flow devices to curb beavers’ negative effects. These devices steal water away from the beavers, lessening their impact. But it allows the beavers to still keep their dam.

“(The city council) was kicking and screaming” because they initially didn’t want to pay, said Heidi Perryman, who runs a beaver blog in Martinez.

Christopher Newport University, in Newport, Va., released a study comparing the costs of keep or removing beavers. The study looked at 14 dam sites, and compared the costs before and after flow devices were installed. It found that before the devices, it costs around $300,000 to remove beavers and to repair the surrounding areas. Often a new colony moved right back in.

The price over the same period of time with the devices was around $44,000 because the beavers’ damage is permanently controlled. “People don’t realize the benefits of beavers are hidden,” Brown said.

Beaver dams filter water, which helps contain urban runoff and water pollution from spreading downstream. They also create new ecosystems, as animals come to the slower water around the dam. Beaver removal can destroy these habitats.

In Martinez, the community ended up saving their town’s beavers, even creating a yearly festival to celebrate the beavers’ continued survival.

“There has been a strong push to coexist,” Brown said.

Ta daa! Positive beaver quotes from North Carolina! And a powerful 1-2 punch from Sharon and myself – why and how to live with beavers, my favorite topics. Of course Sharon gets extra respect for being a ‘biologist’ and Worth A Dam doesn’t even get a MENTION, but it’s okay, I’ll make sure we’re a household word eventually. Hrmph.

Back to Massachusetts now, where Mike Callahan might get hired to save some beavers in Mendon.

MENDON – Officials are looking into installing a beaver flow device in the Mendon Town Forest, where beavers are causing flooding.  According to Community Preservation Committee and Land Use Committee Chairperson Anne Mazar, a beaver dam located in the Town Forest is causing flooding in the area. She and Bill Dakai, volunteer Mendon Town Forest Land Steward, showed the dam to Mike Callahan of Beaver Solutions, who said a beaver flow device could be installed there to solve the problem.

“A flow device lets the beavers live at the pond and build their dam, but the device lets water flow under the dam undetected by the beavers,” said Mazar.

Over the years, Callahan has successfully installed hundreds of the devices around the country, including one in Mendon at Inman Pond that Mazar said “works well.”

It is a long-term cost-effective and humane way to control beaver flooding,” she said. “Trapping and dam breaching is costly and not permanent.”Many towns, she said, spend thousands on culvert repairs because of damage from beaver flooding.  Mazar said the device costs about $2,000 to $3,000.

If the site is right for the flow devices, towns can save time and money,” said Mazar.

If the name Mazar sounds vaguely familiar, it should because it was just a month ago we wrote about her when the town agreed to kill beavers in Lake Nipmuc.  As you’ll remember, those conditions weren’t ‘suitable’ for a flow device and the beavers were killed. Of course I’m unhappy with that explanation, but Mike thinks like a businessman and never wants to stake his reputation on a situation that doesn’t look favorable – he needs that city to maintain faith in him down the line so they hire him again and save some other beavers.

Which makes sense, I guess.

In the meantime, we’re happy these beavers in the forest get saved, and wish Mike and Anne all the luck in the world.  And I must remind everyone that the conditions weren’t exactly favorable in Martinez either, and look how we turned out!

Now you’ve been very good so I’m saving the best for last. I’ll spare you the silly article about the golf course being bewildered how a ‘baby beaver just showed up there lost one morning’ because I assume that EVERY READER of this website knows why orphans appear at golf courses. You definitely want to make this one ‘full screen’.

DONATE

TREE PROTECTION

BAY AREA PODCAST

Our story told around the county

Beaver Interactive: Click to view

LASSIE INVENTS BDA

URBAN BEAVERS

LASSIE AND BEAVERS

Ten Years

The Beaver Cheat Sheet

Restoration

RANGER RICK

Ranger rick

The meeting that started it all

Past Reports

November 2024
M T W T F S S
 123
45678910
11121314151617
18192021222324
252627282930  

Story By Year

close

Share the beaver gospel!