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

Category: Beavers and climate change


I’ve been waiting for this, and apparently so has most of the media because this morning it’s running on Yahoo news and a bunch of other recycling sites. Just remember beavers, you had a day in the sun, a week really. It was grand.

Beavers can do wonders for nature – but we should be realistic about these benefits extending to people

THIS IS NOT A BEAVER.

The beaver is a unique ecosystem engineer that can create a landscape that would otherwise not exist, thanks to the animal’s ability to build dams. As we experience more frequent heatwaves and drought, the potential role of beavers in safeguarding against these risks has captured widespread attention.

Beaver habitats are claimed to lower local stream and air temperatures, and by maintaining water supplies, provide insurance against drought. Greater water storage may also improve the resilience of a landscape towards wildfire.

However, it is important to consider the significance of beaver habitats as a solution to our changing climate from both human and wildlife perspectives. It’s not as simple as saying beavers can protect human society against the effects of extreme weather.

I don’t believe ANYONE is saying that, you silly person. Of course we need more solutions and tools than just beavers. The point is that beavers can HELP if we let them.

Beaver ponds and wetlands can cover wider areas and store more water than the stream that would flow without them. However, beavers are restricted to relatively small streams.

To achieve a water capacity large enough to supplement human supplies, beavers would have to construct an unrealistically large number of ponds across the same catchment. Even then, the water storage would be dispersed across many shallow ponds, making extraction for use in a water supply network unrealistic.

What an increase in beaver ponds can do is provide more refuges for wildlife at a local level, while allowing the slow release of water downstream during dry periods. Such refuges can be critical for wildlife during a drought, and so help preserve an area’s biodiversity.

Greater water storage will also increase an ecosystem’s resilience to climate change. This has been demonstrated during this summers drought. Beaver wetlands in Devon’s River Otter have irrigated the surrounding area and kept vegetation alive, preserving a habitat that many animals depend on.

Unrealistically large number of ponds? Unrealistic according to whom? Beavers aren’t daunted. They can take on plenty of unrealistic jobs. And used to handle much much more. What is UNREALISTIC you mean is the notion that humans could possibly share that much territory with beavers to allow them to MAKE those ponds. And I agree with your unwritten argument. “In order for beavers to make a meaningful contribution we’d need to start killing them less, and that’s unlikely to happen.”

Bodies of water can also reduce the air temperature surrounding them because their evaporation has a cooling effect. However, unless the water bodies are very large, or high in number, this easing tends to diminish rapidly with distance from the water. This would make it difficult to rely upon beaver ponds for cooling benefits for human settlements.

Beavers also tend to open up the canopies of nearby forests by felling trees during the construction of dams. This can reduce shading and allow more direct sun exposure, which complicates any potential cooling effects.

However, felling can also increase habitat complexity, supporting a mixture of meadows and wet woodland. The natural disturbance caused by beavers can create floodplain woodlands that are wilder and wetter, allowing greater biodiversity. In some cases, this can also slow the flow of water and improve water quality.

This same process of opening up the canopy can also increase local water temperatures. However, this can be heavily moderated by the interaction between surface water and groundwater.

This means the outcome for water temperatures will be highly river, dam, and pond dependent. For this reason, research into the thermal impact of beaver habitats has proved inconclusive.

No. No. No. The research has proved inconclusive because some researchers did it wrong and refuse to learn from their mistakes. Measuring the top inch of the pond temperature is the WRONG way to do this. And last time I checked the Climate change papers was in a published in a peer reviewed journal. Which your article certainly isn’t.

Wildfires have been extensive across Europe this summer. Research has shown how the preservation of beaver habitats can improve the fire-resistance of the landscape.

During wildfire, the area of vegetation density loss in beaver habitats was approximately three times smaller than in areas without beavers in the western USA.

However, questions remain as to whether this protection could ever expand to the scale necessary for human settlements. Even if this is not realistic, beaver habitats provide crucial protection for local habitat and wildlife against wildfire.

I do not think that question has ever been raised. The point isn’t that beaver scan FIX fires and droughts any more than wearing seat belts can prevent car accidents. The point is that they can HELP if we let them. Let them help.

This summer has also brought new climate extremes and a prolonged period of drought. With more of this predicted, the debate surrounding mitigation measures is growing. Beavers enjoy enthusiastic support in this regard.

However, it would be wise to temper expectations for the role of beavers as a drought solution for human settlements. Nevertheless, by offering a local buffer against the ravages of drought, heatwaves, and wildfire, beaver habitats carry the potential to help stimulate nature recovery and reverse biodiversity loss.

In the UK, beavers have recently received legal protection, but face a future of expansion into human landscapes. The decades ahead will require some nuanced landscape decisions that can incorporate beaver habitats into large-scale nature recovery and restoration schemes. Beavers are showing that their impacts can offer added levels of ecosystem resilience to a changing climate that we would be wise to embrace.

All we ever said. All that was ever argued. Beavers can help if we help them help. End of argument. Oh and your photo isn’t a beaver, which means you don’t actually have any information or knowledge about what you’re spouting about.

 

 


I remember being in a media storm. Back when the Martinez Beavers were first THE NEWS and channel 2,3,or 7 or the Chronicle was always on the phone looking to talk. I remember how crazy it all got. How there were so many people saying so many things that it was next to impossible to stop the inaccuracies from blossoming. Someone reporting the mayor wanted the beavers or that a child was bitten by the beavers or that beavers eat fish.

It was impossible to control the narrative. The best we could manage was to just hang on.

It was like riding a dragon. There was no telling when it would go and when it would stop and which direction it might turn next. All your could do is cling tightly to the scales and hope you didn’t fall. What I learned is that the media is like sharks. Once they see other sharks biting they all join in. They al want to say just what the other guy is saying and everything happens at once.

Until it stops.

We are in a beaver shark moment right now.  But not about Martinez. about how beavers can benefit the planet as we cope with climate change. About California in particular. Yesterday the LA Times and LA magazine, Phys.org and Yahoo news ram the story. Everyone is saying the same thing. And every cringing mistake is being repeated at gale force.

We are riding the dragon, Hang on.

California says the beaver can be superhero in fighting climate change

California launches beaver restoration effort to fight climate change - Los Angeles Times

Okay raise your hand if you see the quote that will drive me insane when every news castor in the world repeats it.

Here it is: “Alternative strategies are underutilized or simply not considered, said Lundquist, who added that landowners could save time and money they spend trying to unblock beaver dams.”

Trying to unblock beaver dams? TRYING TO UNBLOCK BEAVER DAMS? How could a sentence like that possibly happen? Was Kate talking about a flow device and the reporter just wrote it down wrong? Do you honestly think farmers and ranchers HAVEN’T tried to unblock beaver dams? It doesn’t work because beavers FIX them. That’s why the killing happens.

Please please please please say the magic word flow device the next time the phone rings. Who ever it is. Whatever they ask you. You can always spot the seasoned politician in a crowd. Whatever question you ask they are going to answer by saying the thing they wanted to talk about in the first place. Be seasoned. Control the narrative. Say Flow Device. Or Pond leveler. Or Beaver Deceiver. Or Beaver Baffler.

Pretty please. For me?


This was the best possible headline on this hot, hot morning.

WELLS, Nev. — Horace Smith blew up a lot of beaver dams in his life.

A rancher here in northeastern Nevada, he waged war against the animals, frequently with dynamite. Not from meanness or cruelty; it was a struggle over water. Mr. Smith blamed beavers for flooding some parts of his property, Cottonwood Ranch, and drying out others.

But his son Agee, who eventually took over the ranch, is making peace. And he says welcoming beavers to work on the land is one of the best things he’s done.

“They’re very controversial still,” said Mr. Smith, whose father died in 2014. “But it’s getting better. People are starting to wake up.”

As global warming intensifies droughts, floods and wildfires, Mr. Smith has become one of a growing number of ranchers, scientists and other “beaver believers” who see the creatures not only as helpers, but as furry weapons of climate resilience.

Last year, when Nevada suffered one of the worst droughts on record, beaver pools kept his cattle with enough water. When rains came strangely hard and fast, the vast network of dams slowed a torrent of water raging down the mountain, protecting his hay crop. And with the beavers’ help, creeks have widened into wetlands that run through the sagebrush desert, cleaning water, birthing new meadows and creating a buffer against wildfires.

True, beavers can be complicated partners. They’re wild, swimming rodents the size of basset hounds with an obsession for building dams. When conflicts arise, and they probably will, you can’t talk it out.

Ohhhhhh I like this article. Even if it does start out by repeating beaver lies without correcting them. No one blows up beavers homes. What would be the point? They blow up their ‘offices’.

Beavers flood roads, fields, timber forests and other areas that people want dry. They fell trees without a thought as to whether humans would prefer them standing. In response to complaints, the federal government killed almost 25,000 beavers last year.

But beavers also store lots of water for free, which is increasingly crucial in the parched West. And they don’t just help with drought. Their engineering subdues torrential floods from heavy rains or snowmelt by slowing water. It reduces erosion and recharges groundwater. And the wetlands beavers create may have the extra benefit of stashing carbon out of the atmosphere.

In addition to all that, the rodents do environmental double duty, because they also tackle another crisis unleashed by humans: rampant biodiversity loss. Their wetlands are increasingly recognized for creating habitat for myriad species, from salmon to sage grouse.

Beavers, you might say, are having a moment. In Colorado, Idaho, Montana, Nevada, Oregon, Utah and Wyoming, the Bureau of Land Management is working with partners to build beaver-like dams that they hope real beavers will claim and expand. In California, the new state budget designates about $1.5 million a year to restoring the animals for climate resiliency and biodiversity benefits.

Hohoho. How’s this for a fine article on a Tuesday? Nevada! Colorado? Now what about their ugly stepsister California?

“We need to get beavers back to work,” Wade Crowfoot, California’s secretary of natural resources, said in a webinar this year. “Full employment for beavers.” (Beaver believers like to note that the animals work for free.)

Further east, where water and beavers are more plentiful, the job market isn’t as hot. But there are projects. In Maryland, groups are trying to lure beavers to help clean the water that flows into Chesapeake Bay. In Wisconsin, one study found that beavers could substantially reduce flooding in some of the most vulnerable areas of Milwaukee County.

Instead of killing beavers, the federal government should be embracing them as an important component of federal climate adaptation, according to two scientists who study beavers and hydrology, Chris Jordan of National Oceanic and Atmospheric Administration Fisheries, and Emily Fairfax of California State University Channel Islands.

“It may seem trite to say that beavers are a key part of a national climate action plan, but the reality is that they are a force of 15-40 million highly skilled environmental engineers,” Dr. Jordan and Dr. Fairfax wrote this year in a perspective article in the research journal WIREs Water.

Dr. Fairfax’s recent research focuses on how beaver complexes interact with wildfires. For now, her findings indicate, they are too wet to burn. But as climate change makes wildfires more intense, she said, that could change.

“We cannot afford to work against them any longer,” she and Dr. Jordan wrote. “We need to work with them.”

Oh my goodness. All my favorite beaver voices gathered in one place. I need to sit down.

Caroline Nash, a river scientist at the consulting firm CK Blueshift LLC who has published research on beaver-related restoration, emphasized that projects should be evaluated on a case-by-case basis.

“It’s all about identifying those locations where beavers’ survival interests align with humans’ survival interests, and they’re not always aligned,” Dr. Nash said. “And so suggesting that they’re always going to be aligned is creating a recipe, I think, for broken hopes and expectations and a loss of trust.”

Before Europeans arrived in North America, beavers’ engineering helped to shape the landscape and hydrology of the continent from coast to coast. But their fur was popular in Europe for felted hats, and trappers had nearly eradicated them by the late 1800s. As their numbers climbed back, in part because of reintroduction programs beginning a century ago, conflicts came, too. Even in places where beavers are honored as a state animal (New York, Oregon) or a national symbol (Canada) people in low-lying areas did not like their property returning to wetland.

Beavers build dams with logs, sticks, stones and mud to create deeper water, which helps them dodge predators like bears. Their lodges have underwater entrances, and they stockpile food below the surface for winter. Beavers’ front teeth are orange from the iron that strengthens them for gnawing trees.

Perfect. Now if only there were some kind of discussion about how conflicts can be solved. not just moved I’d be in heaven.

When human-beaver conflicts arise, they can be addressed without killing the animals, experts say. Paint and fencing can protect trees from gnawing. Systems like the Beaver Deceiver secretly undo their handiwork with pipes that drain water from beaver settlements even when the animals keep building. Such measures are actually a more effective solution than removing the animals, according to advocates, because new beavers tend to move into empty habitat.

If coexistence is impossible, a growing number of groups and private businesses are seeking to relocate, rather than kill, nuisance beavers.

“We put the nuisance in air quotes,” said Molly Alves, a wildlife biologist with the Tulalip Tribes, a federally recognized tribal organization just north of Seattle that moves unwanted beavers to land managed by the United States Forest Service.

The group’s impetus was a desire to expand the extraordinary habitat that beavers offer salmon, a culturally and economically important species. When they started in 2014, the Tulalip Tribes had to invoke their sovereign treaty rights to relocate beavers because doing so was illegal in their area under Washington State law. After a lobbying push, beaver relocation is now legal statewide and the tribes are advising state officials on a program to train others in best practices.

One lesson learned: Keep beaver families together.

“They’re much more likely to stay where we put them if their whole family is there,” Ms. Alves said. “Beavers tend to form really tight-knit familial bonds.”

But in many states, it’s illegal to relocate beavers (and other wildlife), in part because officials worry about people simply moving the problems elsewhere.

And officially sanctioned beaver killing continues. Suzanne Bond, a spokeswoman for the United States Department of Agriculture, which runs the program that kills tens of thousands of beavers each year by trapping, snaring and shooting, said the agency was reviewing the relevant science and was “committed to increasing our capacity to respond to beaver damage and impacts with nonlethal mitigation techniques.”

Okay. Move if you must. But promise me you’ll try to solve the problem first. And maybe educate people about the futility of relocation.

Mr. Smith’s father got so angry at beavers in part because the sides of their dams would fail during the rush of the spring snow melt, sending damaging sediment onto his hayfields. But the younger Mr. Smith decided to try a different approach to cattle management, moving them around his land and letting them spend less time around the creeks. That allowed shrubs and trees to grow in along the banks, making the whole area more stable. Eventually, if the beaver dams did give way, they would do so at the center, and the surge of water would stay in the channel.

Over time, beavers expanded the wetlands. New meadows grew in. Willows sprout from beaver dams, having taken root where the animals anchored them. The water runs clear. Fish and frogs have returned.

“Now the only time we get crossways with beaver is if they start building dams in our irrigation ditches,” Mr. Smith said. “But we’ve learned ways to discourage them from doing that.” Pulling out the dams a couple of times usually does the trick, he added.

Part of what has made the partnership successful is Mr. Smith’s flexibility. For example, beavers have completely rerouted one section of creek. But Mr. Smith doesn’t see the change as good or bad, “just different.” The most important thing, he said, is how much water they’re storing on the land.

Now more than ever, he said, “water is liquid gold.”

Catrin Einhorn reports on biodiversity for the Climate and Environment desk. She has also worked on the Investigations desk, where she was part of the Times team that received the 2018 Pulitzer Prize for Public Service for its reporting on sexual harassment. @catrineinhorn

HUZZAH!!!!!!!!!!!! It isn’t every day you can say you knew every word in a NYTimes article before it was published but this is pretty good! Now let beaver phones everywhere start ringing with job offers. And lets get this party started.

 


More movies, I can year you saying. I want to see MORE movies about beavers. And some more stop motion video too showing their contribution to the ecosystem. Well VOX heard your request and decided to drop this interview with Emily Fairfax yesterday.

This is better than the last and does the best job explaining stream temperatures I’ve seen but it STILL doesn’t mention that their are tools to keep beavers in place rather than moving them. I’ve half a mind to hire Ian myself to make that movie!


This was a fun report yesterday, Today it is being picked up by all the science sites around the internet and even Yahoo news! Never mind that it’s not strictly accurate, I mean beavers might be moved in Utah but they still aren’t being moved in California. It’s a lofty goal to which we aspire. Right?

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