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

Tag: Cows and Fish


Some days I just can’t keep up with the hot number of good news stories reported about beavers. I’m already over the moon because Jon picked up the generous puppet donation from Folkmanis yesterday and we received our posters back from the printer. Didn’t this illustration of Alex Riley’s quote, my design and  Coyote Brush Studios‘ beautiful artwork turn out extraordinary?

ecosystem

The plan is to sell these at the festival and by mail, although we haven’t settled on a price yet and technically they’ll be thank you gifts for donations, not sales! They are 18 x 24 and would make a wonderful classroom or visitor’s center poster!

As if that wasn’t exciting enough, this morning there’s a fantastic story out of Alberta about the always inspiring Cows and Fish teaming up with the Miistakis institute to undertake a massive survey an beaver education project, to learn how best approach the landowners.

Is Canada’s national animal a boon or a pest?

Beavers: love them, hate them or ambivalent?

A recently launched survey seeks to learn Alberta landowners’ attitudes about one of Canada’s national symbols. Alberta’s Cows and Fish society has partnered with the Miistakis Institute, a non-profit research group associated with Mount Royal University, on a survey to assess landowners’ knowledge and perception about beavers, their habitat and their management.

There are benefits and drawbacks to having beavers on the property, and survey results will be used to further develop education and outreach on the role of beavers in the ecosystem.

Beavers are a really important keystone species in our ecosystems and they provide some really critical function within our watersheds, and people don’t know a lot of that,”said Miistakis executive director Danah Duke. “We recognize that beavers cause a lot of damage. They take down trees, they flood areas. We recognize that and we recognize that in order for people to be able to coexist with beavers, we need to be able to manage beavers.”

Duke said she suspects many people don’t realize all the benefits beavers provide, such as raising the water table, slowing stream flow, creating habitat for biological diversity and making stopgaps against drought.

“Beaver ponds retain water 50 percent longer than stream sections with no beaver activity, so in times when water is scarce, we find places that have beavers and beaver ponds, water stays on the landscape longer.”

Anyone in Alberta is welcome to take the survey, but the project is aimed at southern Alberta for the moment, said Duke. Organizers are hoping to receive at least 400 responses so that they have statistically significant results.

I am so beyond impressed with the good work Cows and Fish is doing and has been doing since long before Martinez started to play. You can check out the great survey here, I was already their outlier this morning. It’s well done and obviously sneaks in a little education at the same time as it asks questions. Just check out this question which must come as close as a beaver survey can to being a push-poll.

push pollI sure hope during their data analysis they recognize me and wave hello!

A final burst of good news just came from author Ben Goldfarb who is writing the newest book on beavers. He just found out he is the winner of the Aldo Leopold Mi Casita fellowship which means he gets to write his book at Leopold’s home in Taos. It’s a huge honor and beavers and Ben couldn’t deserve it more.

Leopold’s ‘Mi Casita’ residents focus on environment projects

Wolves, beavers and the land ethic are the areas of interest for this year’s participants in the Aldo and Estella Leopold Residency Program, which is now in its fifth year. The residents will spend a month in late summer at the Leopolds’ first home located on U.S. Forest Service land in Tres Piedras.

Ben Goldfarb, a science and environment writer from New Haven, Connecticut, will continue working on a book project about the ecological and hydrological benefits of North American beaver restoration.

In fall 1912, Aldo Leopold, then the newly appointed supervisor of the Carson National Forest, married Estella Luna Otero Bergere, a prominent daughter of Santa Fe. They moved into their new house, called “Mi Casita.”

It was at Mi Casita that Aldo Leopold found his footing as a leader in forestry and conservation. He once described conservation as “the slow and laborious unfolding of a new relationship between people and land.”

The U.S. Forest Service restored the Leopold house in 2007 and has joined with other residency partners to make it available for the Aldo and Estella Leopold Residency Program.

The sponsors of the residency program aimed to promote a transformative “unfolding” by inviting conservation-minded writers, artists, teachers, professionals and practitioners to Mi Casita. Each resident receives a stipend of $500 to help defray travel and living expenses.

Ben says the residence committee was certain Aldo would approve, and we of course agree. He notes that Aldo’s son Luna who wrote so much about fluvial geomorpology never mentioned beavers. But here’s a secret fun fact. Luna was the dissertation chair of Ann Riley who’s recent book on restoring neighborhood streams has a chapter on the Martinez Beavers.

So I think this was all meant to be, don’t you?


Oh those crazy beavers with their penchant for sinkholes and collapsed roads! When are they going to stop harassing us with their rodent ways and let us live peacefully. On ALLIGATOR lake.Capture

Beavers the culprit in 30A road collapse

“We’ve always had problems with beavers where we don’t have a bridge,” said Chance Powell, an engineer for Walton County

One of the great mysteries early Thursday morning was solved after it was determined that beavers were the most likely culprit for the sinkhole that has closed Walton County Road 30A near County Road 283.

Beavers? Beavers!

The Walton County Sheriff’s Office received a call just after 5 a.m. Thursday about a sinkhole on 30A at Alligator Lake.

According to County Commissioner Tony Anderson, who was present as county crews began to fill the extensive hole, a GMC pickup was crossing the section of road when the asphalt began to cave in. The vehicle made it across, but the pickup was damaged and the man driving it was taken to Sacred Heart Hospital on the Emerald Coast with minor injuries, said Walton County Public Works Manager Wilmer Stafford.

“The water that flows under the road became too heavy on one side and caused it to fall in,” said Stafford, who also was at the scene later in the morning.

 The section of CR 30A surrounding the collapse site has been closed until the road can be repaired.

On the surface, the hole appears to be about 4 feet wide and takes up three-quarters of the road in front of Alligator Lake. But officials calculate that crew must deal with a much larger area of damage under the road.

But wait, how do the beavers make the sink hole exactly? Are you saying they tunneled under the asphalt to get away from the alligators, or chew holes in the road with their huge incisors, or that maybe the road was stuffed with willow and they ate it? The article is a little vague on the actual mechanics of destruction.  But I’m sure they’re telling the truth, right? People would never blame a rodent for something just to explain away a problem that their carelessness caused in the first place.

I guess it will stay a mystery, like how beavers live near ALLIGATOR lake in the first place.


 

Come to think of it, maybe they can sign up for the flow device WEBINAR coming soon from our friends at Furbearer Defenders and Cows and Fish. It will be taught by Adrien Nelson and Norine Ambrose and you are ALL invited. It’s a bargain at 5 dollars. Make sure to save your space now.

Learn how to successfully implement flow devices for beaver management in your community with our upcoming webinar, Beaver Flow Devices for Managers.

On April 6, 2017 at 3:30 pm EDT / 1:30 pm MDT / 12:30 pm PDT, Adrian Nelson of The Fur-Bearers, and Norine Ambrose from Cows and Fish will co-host this engaging webinar that will focus on the “whys” and “wheres” of implementing these devices. Managers and supervisors from a range of backgrounds will learn to better understand the applicability of these devices, as well as analyze sites requiring beaver management, and address which type of flow devices are most appropriate. 

Adrian will walk through the different types of devices, and how to make each one successful, as well as various obstacles and needs that may need to be addressed before deployment. The presentation will also touch briefly on ordering and supplies to ensure teams have the right materials for success.

Norine will tell participants of her first-hand experience in learning about and installing these devices in Alberta, and let participants know about the broader beaver collaborative work on education, social science, and management Cows and Fish is involved with the Miistakis Institute, local partners, and support from The Fur-Bearers.

Participants will come away with a better understanding of flow devices, but more importantly why they are useful to successfully co-exist with beavers. A question and answer period will follow.

I actually didn’t know these good folks knew each other, so I might watch just to learn more about their interaction. We will definitely learn things!


MIT continues to make great strides on beaver-inspired wetsuits.

Leave It to Beaver: Why a furry wetsuit could keep you warmer and drier.

Beavers and sea otters lack the thick layer of blubber that insulates walruses and whales. And yet these small, semiaquatic mammals can keep warm and even dry while diving, by trapping warm pockets of air in dense layers of fur.

Inspired by these fuzzy swimmers, MIT engineers have now fabricated fur-like, rubbery pelts and used them to identify a mechanism by which air is trapped between individual hairs when the pelts are plunged into liquid.

The researchers are particularly interested in improving wetsuits for surfing, “where the athlete moves frequently between air and water environments,” says Anette (Peko) Hosoi, a professor of mechanical engineering and associate head of the department at MIT.

Biologists had observed that beavers and other semiaquatic mammals trap, or “entrain,” air in their fur. But, as graduate student Alice Nasto notes, “there was no thorough, mechanical understanding of that process. That’s where we come in.”

The team laid out a plan: fabricate fur-like surfaces of various dimensions, plunge the surfaces into liquid at varying speeds, and use video imaging to measure the air trapped in the fur during each dive.

“We have now quantified the design space and can say, ‘If you have this kind of hair density and length and are diving at these speeds, these designs

will trap air, and these will not,’” Hosoi says.

Ah science! Working so hard to do what nature does without thinking. Not much new in this news, I admit, but I like the graphic. Given the temperature outside yesterday I can understand the need for really efficient entrainment.

I found out this weekend that Lorne Fitch from Cows and Fish is accepting our offer of a transportation scholarship and coming to the State of the beaver conference in February! Whoo hoo! The line up looks really grand with folks from Whales, Scotland AND Germany flying out to present their beaver work, as well as American experts like Suzanne Fouty, Mike Callahan, Damion Ciotti and um, me. I also found out that stalwart beaver champions Sharon and Owen Brown of Beavers: Wetlands and Wildlife will be presenting there. Which is wonderful because I always get a little tired of hearing about ‘beavers as a means to an end’ by Friday! The video below is theirs and narrated by Sharon. You should really think about being there. We’re renting a house so we’d invite you for dinner and everything.

I’m not sure what to think about the Whit Gibbons learning curve. He wrote back that he’d look at the website and I sent him all sorts of educational links. His column is obviously syndicated and has appeared in a few other papers. But today’s appearance bears this headline:

Beavers Make Great Neighbors

Same exact column, but this one is printed in New York.  Authors don’t usually pick the headline. So who knows what the explanation is?


Capture

 

This document is so packed with information it will take a while to upload but I thought it deserved to be browse-able. To  download your own go to their website. You won’t regret it!

Beaver-Our-Watershed-Partner-for-WEB

Incredible new achievement from our friends at Cows and Fish in Alberta. They are smart persuaders of beaver benefits for some pretty tough customers. And this really well-designed document covers all the issues and then some. Honestly, these are some of the finest beaver illustrations I’ve seen (besides Amelia’s of course!) I had to show you this one especially. Doesn’t that just say it all?

water graphicThe whole document deserves a solid read and reread on a rainy day by a window. Click here for the link to it on their website, and please pass it on!Capture

And just in case that news isn’t exciting enough, try this new research from the forest service, to be published next month in the Journal of Fresh Water Biology.

Beaver activity increases aquatic subsidies to terrestrial consumersCaptureSummary

Beaver (Castor canadensis) alter freshwater ecosystems and increase aquatic production, but it is unknown how these changes influence the magnitude and lateral dispersal of aquatic nutrients into terrestrial ecosystems.

We examined differences in abundances of dominant aquatic invertebrates, wolf spiders (Lycosidae), and deer mice (Peromyscus maniculatus), at beaver and non-beaver sites. We used stable isotopes to track aquatic-derived carbon in terrestrial consumers and linear mixed-effects models to examine the importance of beaver presence and distance from stream channel on the percentage of aquatic-derived carbon in terrestrial consumers.

Sites with beaver activity had >200% higher aquatic invertebrate emergence rates as well as 60% and 75% higher abundances of spiders and deer mice, respectively, relative to non-beaver sites.

More beavers mean more bugs. Haven’t I always told you that? The USFS has been kind enough to count how many. And then look at all the happy spiders and deer mice who get to eat them. Hurray! I can’t wait until the entire article is available but this is a great place to start. Thanks!

Yesterday we worked on the project for this year’s Earth day and made stencil’s for these. Jon was kind enough to model, but just imagine 100 kids walking around with these on the day. We just found out that two of our hearty regulars won’t be able to help out that day! Maybe you are free on April 23rd and want to honor the spirit of John Muir by helping beavers? If you might, email me and I’ll make it sound even better! It’s a beautiful day, lots of ecologically minded folks, and beaver-admiring children. Persuaded yet?

Recently Updated1

 


There’s very encouraging news out of Alberta this morning, where Lorne Fitch is holding an all-day workhop on beaver management and benefits. He’s the provincial riparian expert at the extremely beaver-progressive Cows and Fish  which has done so much for beaver education in the province.Capture

Beaver education presented by Lorne Finch

A May 21 workshop will help educate landowners, municipal officials and anyone interested in the impacts of beavers on the surrounding area will be held May 21 at the Cremona Community Hall.

 “Beavers bring challenges, but they also bring benefits,” said Finch. “The challenge is what is the balance between the two?”

The purpose of the workshop is to highlight the impact Canada’s national animal has on watersheds in the area surrounding Cremona, values beavers provide for the community and issues and challenges presented by beavers.

“It has become recognized by many ecologists that beavers are one of the tools that help us adapt to climate change,” said Finch. “We recognize that climate is changing, it’s becoming more variable and uncertain. In some cases the climate manifested as weather events (that are) quite violent.”

 Finch said beavers have helped maintain safety for communities whether there is a drought or a flood. In the case of a flood beaver dams help moderate or dampen flood flows, while during a drought they naturally help store water and controls the effects of low stream flow conditions.

One of the key segments that will be offered during the workshop offers insight to better understand beaver ecology.

A whole day of beaver education? Don’t you want to be there? Cows and Fish has made a name for itself by straight talking right to the ranchers themselves. They have done amazing job making the smart beaver research done by Dr. Hood and others available at the hands-on level.  They have a great relationship with the media and they know how to use it well, and are firmly committed to letting beaver do their restoration all over the province. This video introduces there long-term restoration goals, and is nicely done. (Even if it DOES sport a famous muskrat photo….sheesh.)

It’s hard to understand how such a significant beaver IQ could plummet so dramatically if the boundary is crossed into the next province over, Saskatchewan. 850 miles from the Cremona, the even less populated untown of Kellross is doing everything it can to get rid of beavers. (Everything it can without actually learning, I mean.)

 Beavers are a nightmare for some in rural Saskatchewan

 Provincially, beaver numbers are up as well. The beaver control program is an initiative of the Saskatchewan Association of Rural Municipalities, with help from the province.

In 2014, a total of 37,645 beaver tails were turned in — a significant jump (about 56 per cent) from the 27,653 beaver tails submitted in 2013.

Despite the aggravation they cause, Patterson still has a grudging admiration for the engineering feats, and stick-to-it attitude, of the beaver.

“They are good workers,” he admitted. “They’re hard workers that’s for sure. They don’t give up.”

For reference, the province is about 3 times the size of Texas. They are so notorious for beaver slaying that they were in the canadian version of Jari Osborne’s documentary. And I first wrote about them on this website in 2011 when I was prompted to create the famous ‘exploding beaver’ graphic.

exploding beaver The province has 22,921 square miles of water which means they killed 1.6 beaver per mile. Considering that the numbers of beavers went UP every year you’d think they start to consider that maybe this technique wasn’t working. Instead of just doing it more, they could actually do something different?  With population rebound being what it is this might not be the smartest idea.

Apparently there’s no danger of any thinking going on anytime soon. Guess what the numbers will be next year?

Yesterday I spent some time working on the handout for children participating in the Keystone Project at the beaver festival. They will each get a laminated copy to use and hopefully return it to me and take part in the survey we need to use for our grant. I tried to make it fairly simple and straightforward. What do you think?

laminated card

 

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