Beavers from Space launched April 4th on the Zooniverse. The citizens science project uses satellite imagery to uncover beaver habitat in Canada. Read on below to learn more about how you can help out.
Become a dam detective by searching satellite imagery for signs of beavers on the landscape!
Despite the cultural and ecological importance of ksisskstaki (beaver) little is known about their presence in Alberta’s streams and rivers. By searching through satellite imagery for beaver dams and lodges in the waterways of the Kainai Nation (Blood Tribe) in southern Alberta, Beavers from Space seeks to determine where beavers are present on the landscape and where they are not. Volunteers will search through imagery of over 7,000 kilometres (4,300 miles) of streams within the study area, a task that would be overwhelming and expensive to undertake with field work alone. This information, in combination with field work data, will inform riparian (river ecosystem) restoration locations, which may include the installation of beaver dam analogues. Beaver dam analogues are a proven riparian restoration technique that improves watershed health and function by mimicking the work of beavers.
Our study area is focused on the 3 watersheds (outlined in black below) that the Kainai Nation (Blood Tribe) reservation and timber limit are located in (outlined in red below). Generally, this area stretches west from Lethbridge, Alberta, to the British Columbia border, and includes Waterton Lakes National Park. The study area is just north of the Canadian-American border in the State of Montana.
By reviewing satellite imagery for beaver dams, you can help us understand where beavers are present in our watershed or where beaver-mediated restoration could occur where beavers are absent. We anticipate a relatively low density of beavers on this landscape, which is why we need your help to search every stream in the study area.
Dam neat project if you ask me! Click this link for a lot more information.
There was a bit of news from The First Annual SLO County Beaver Festival. It went well with around a thousand attendees over the day. A good time was had by all and especially the kids who got to build dams out of mud and sticks! There is also a fun video of Cooper Lienhart joining The Loving Mosh to sing Go Little Beaver Go at the Festival on April 1st, 2023.
Oh! One more thing. The Cambridge Filmworks people got rid of the darn nutria photo that I told them about! They found an image of a handsome European cousin to head the article like I hoped they would. Yeah!
Beavers have returned to the waters of Somerset and Wiltshire, hundreds of years after being wiped out.
Escapes from enclosures and unlicensed introductions are suspected to be behind the rodent’s return.
As many as 50 beavers could be living in the West Country, Natural England has revealed.
The government’s nature advisor had been investigating the possibility of beavers in the region following reports of the rodents in and around the Rivers Frome and Avon. The resulting report, published earlier this month, found a wealth of evidence that beavers were thriving in the areas, including dams, gnawn trees and burrows.
In total, it is estimated there could be anywhere from 36 to 62 adult beavers in sections of the rivers near Bath, Chippenham and Trowbridge, living in 13 families. If baby beavers, known as kits, and family units living in areas of the river which couldn’t be surveyed are included, then this figure could be even higher.
A spokesperson for the Avon Wildlife Trust previously described the presence of beavers in the area as ‘extremely significant’, adding that ‘the presence of this beaver population will support other wildlife and help us to tackle the ecological emergency.’
Where have the West Country’s beavers come from?
Eurasian beavers are rapidly being reintroduced across the UK, having been driven to extinction in the country over 400 years ago through hunting for the fur, meat and perfume trade. The mammals are now present across the country, from Scotland all the way south to Devon and London.
Officially, beavers can only be reintroduced into enclosures with a license from the government. However, many beavers are living wild following escapes from these sites, as well as unofficial introductions.
For instance, one of the UK’s largest populations of beavers can be found in Tayside, Scotland, is thought to be the result of a mixture of accidental and illegal releases.
While beavers are now considered a native species in England, Wales and Scotland, it is still a crime to release them without a license, which can result in up to two years in prison as well as an unlimited fine.
Many of the beavers in the West Country are thought to have been released unofficially, with the report estimating that these have probably taken place since 2016. Others, meanwhile, may be the descendants of animals which escaped from a private collection in the 2000s.
The beavers have now spread widely, with the majority of the families found in the River Frome, a tributary of the River Avon. Four families are found in the Avon itself, while another is found on the By Brook.
Though there had been reports of beavers in the River Brue and Kennet and Avon Canal, the latest report didn’t find enough evidence to verify their presence.
In total, the beavers may occupy as much as 11% of the available riverbanks in the areas of Wiltshire and Somerset where they live. Each family is estimated to have a bankside territory as long as eight kilometres, which is above average for England’s beavers.
While they may cover a relatively large area, the beavers are not thought to be having a major impact on their ecosystem at the moment. Though some families have started building dams and felling trees, the majority are still getting established in their new home.
With beavers having been made a protected species in England in October 2022, it’s thought that their populations will only grow if left undisturbed. While the report notes their activities could eventually pose a risk to transport, this is not likely in the near future.
Instead, it recommends further research to promote co-existence with these beavers. Assessing their genetic health, and coming up with management plans, can help to ensure these rodents can keep beavering away in the West Country.
The signs are instantly recognizable: partially chewed trees, pointy stumps and sprawling collections of sticks and logs in the middle of waterways. These all signal the presence of beavers, the plump, semi-aquatic critters that were once nearly hunted to extinction.
Established wildlife laws and reintroduction brought their numbers to stable levels, but they still remain a fraction of what they once were. Further recovery of beaver populations is crucial.
Because they significantly alter, manage and even improve the areas around them, beavers have earned the title of “ecosystem engineers.” Their work enhances the surrounding landscape and ecosystems, making these critters some of the most important, not to mention adorable, stewards of nature. Here are five ways beavers help the environment.
Beavers help control water flow.
You might assume that since beaver dams block water, they must cause floods, but that’s far from the case. Dams are penetrable structures that slow water flow, resulting in less erosion and flooding than undammed, fast flowing water. Dams physically store water on land where it soaks into the soil and initiates plant growth, able to turn bone-dry areas into bountiful wetlands. If you repeatedly visit beaver habitat in different seasons, you can see the transformations that take place thanks to their dams. A landscape often looks completely different from even just a few months prior.
Beavers improve water quality.
Rainwater runoff from artificial surfaces washes toxins into waterways, threatening aquatic ecosystems. Wetlands surrounding beaver dams act like kidneys by removing pollutants from water, effectively cleaning it. As dams decrease water flow, nutrient-rich sediment usually swept away by the current instead sinks and collects on the bottom. This abundance of minerals filters and breaks down harmful materials like pesticides and leaves areas downstream of dams healthier and less polluted than upstream.
Beaver activity creates more habitat for other wildlife.
Since beaver dams slow water flow, the original path is altered as the water meanders over additional ground, creating more wetlands where other species thrive. Important plants that feed animals and provide for people see their numbers increase over 33% in beaver wetlands, while birds nest on riverbanks, fish swim about and mammals forage for food in these natural havens. In fact, 25% of species living in these wetlands fully depend on beaver activity for survival.
Beavers stop wildfires.
Increasing wildfires destroy nature and emit greenhouse gasses, but beaver activity can hold the devastating flames at bay. Wetlands made by beaver dams concentrate water and moisturize the landscape, making it harder for fires to spread as potential fuel becomes harder to burn. Wildlife can shelter in these wet sanctuaries, safe from an encroaching blaze. Beavers might not drive red trucks or slide down poles, but they make an excellent fire department nonetheless.
Beavers help us fight climate change.
The primary driver behind climate change is the massive amount of carbon human activity pumps into the atmosphere. The more we emit, the more it builds up, but beavers help reduce its accumulation as their wetlands absorb and store the greenhouse gas. Globally, beaver wetlands hold 470,000 tons of carbon each year and perform carbon-capture work worth tens of millions of dollars. Restoring beavers to their natural habitats and widespread numbers can lead to further carbon absorption as the animals proliferate, construct dams and establish more wetlands. More beavers mean more wetlands, which mean less atmospheric carbon, a win-win-win scenario.
The incredible feats beavers perform should not be understated, whether it’s their beneficial environmental work or ability to transform landscapes. As the world’s foremost natural ecosystem engineers, they play crucial roles in managing nature unlike any other animal. You can celebrate these incredible critters on International Beaver Day every April 7. The next time you’re hiking and come across those telltale bites on trees or piles of sticks, be sure to thank a beaver for all they do in supporting the natural world by just being their busy little selves.
A Eurasian beaver family will be getting new neighbours to help protect an additional stretch of Finchingfield Brook. The Essex project is to build two, new, 50-acre enclosures in preparation for more beaver families. The new arrivals will extend the amazing work of their cousins, introduced to the Estate in 2019, who have already transformed a woodland into a thriving wetland. The unprecedented £350,000 scale-up is jointly supported by Anglian Water, the Environment Agency, the Anglian Eastern Regional Flood and Coastal Committee (RFCC), Essex County Council and Essex and Suffolk Water in an innovative partnership funding approach.
The two new enclosures, along the Finchingfield Brook, will measure 1.9km long cover 40 hectares (100 acres), 10 times the size of the original enclosure, which was built in 2019. Preparations for the project are already underway with two new beaver families expected to be re-introduced in Spring 2023.
Archie Ruggles-Brise, Spains Hall Estate manager said:
“The chance to bring more natural engineering skills to the estate is beyond exciting. Since 2019 we’ve seen what beavers can do to reduce flood risk, increase drought resilience, clean water and create year-round habitat for wildlife. Now, thanks to the incredible support of our partners, we can supersize these benefits.
“With a massive new area to work in the beavers will help make the Finchingfield area more able to weather the changes climate change will bring, and all the while providing inspiration and experience that others can use elsewhere. For the estate this means we can keep pushing the boundaries of what can be done on private land, if you are willing to be open about working with others and offer a compelling vision.”
Acting as nature’s engineers, the beavers have helped to completely transform the landscape around them. The dams have played a crucial role in reducing flood risk in the area by slowing down the river flow and channelling it through new channels and wetlands.
Throughout this year’s drought, the dams also helped the river flows by slowly releasing retained water, helping to protect local wildlife. We hope these new beavers settle in and breed as successfully as the original pair, who produced three sets of kits.”
Environment Agency lead on the project Matt Butcher said:
“It’s great to see this project go from strength to strength providing real benefits to the local environment and community.
“The beavers have shown what effective flood engineers they are in the past few years and it’ll be great to extend this to a wider area.”
Dr Robin Price, Director of Quality and Environment for Anglian Water said:
“The effects of climate change including the risk of drought and flooding are felt more keenly in the East of England more than anywhere else in the UK. We need to find new and better ways of dealing with the challenges they bring while continuing to protect homes and businesses– and what better way to approach the problem of flooding here in Finchingfield than this wonderful, nature-based solution.
“Restoring natural habitat in such a purposeful way is also at the heart of Anglian Water’s Get River Positive commitment and we are proud to be supporting the next stage of Archie’s vision for Spains Hall Estate.”
Cllr Peter Schwier, Climate Czar at Essex County Council said:
“Essex County Council has been involved in the Essex Beaver project from the very beginning, providing administrative assistance and advice on water courses, so we are very pleased this project is proving so successful.
“Our work with all partners involved in this project means we are improving space and habitat for wildlife, while at the same time the work of the beavers is mitigating flooding, two of the key priorities contained in the Everyone’s Essex Green Infrastructure Strategy.
“Beavers are productive and useful and an honour to have in the beautiful Essex countryside.”
Richard Powell, Chair of the Regional Flood and Coastal Committee said:
“We are once again delighted to be part of the estate’s work, using flood risk funding to deliver nature based solutions is in all our interests. This project will deliver so much more than reduced flooding, creating invaluable wetland habitat as an oasis in the East Anglian landscape.”
Tom Harris, Catchment Advisor at Essex & Suffolk Water said:
“We’re delighted to be able to support the next phase of this exciting project, expanding significantly on the good work that the beavers have already carried out, turning their areas of the Estate into wild wetlands – providing huge benefits for biodiversity as well as slowing the flow in the catchment.
“Having the Spain’s Hall estate situated in one of our key raw water catchments has given us a fantastic opportunity to develop our ongoing work with catchment landowners, bringing multiple benefits for water quality, the local environment and their businesses. We are truly looking forward to the continuation of our partnership with the fantastic team at Spains Hall.”
To find out more about this fantastic project, please visit: Anglian Water
Please join with 250 non-profit organizations, scientists and advocates who submitted this letter to President Biden on February 27, 2023 asking for an Executive Order to protect beaver on our federally managed public lands as a proactive emergency climate response!
This petition will close on May 31, 2023 and be prepared for submission to the Biden Administration.
Ending beaver trapping and hunting on our federally managed public lands is a nature-based climate solution that will help restore many of our streams and wetlands, and bring real, tangible benefits to our communities.
Drought, floods, wildfires, and crashing fish and wildlife populations are no longer confined to small areas but spill across state boundaries. State wildlife agencies have failed to act in our best collective interest as they continue to narrowly focus on select recreational user groups even as our human and wild communities are increasingly stressed by the accelerating impacts of climate change and biodiversity loss. It is time for action at the national level.
Benefits include: More dependable water for cities, towns, farms and ranches; natural water filtration systems resulting in improved water quality; natural firebreaks creating refuges for wildlife during wildfires and protecting water quality post fire; temporary surface and groundwater storage that dampens flood peaks and improves stream flows during droughts; abundant quality fish and wildlife habitat; and drawdown of atmospheric carbon as wetland habitat expands.
Beavers can help us meet the challenges before us but only if we protect them. It is time to ask the President to take action as a matter of national security. Time is of the essence.
Matt Kaminski stood on a road scarcely higher than the floodplain, glassy pools on all sides stretched out like something from a dream. In the distance, a storm lumbered over the Coast Ranges.
The marsh all around him, Kaminski said, was a window into the Central Valley’s past. Back then, the waterways that twist down from the Sierra Nevada mountains would flood unrestricted by the current thicket of dams, canals and levees.
The more you know about rivers, the less confidence you have in a mapmaker’s static squiggle. Kaminski, a biologist from Ducks Unlimited who helps oversee the floodplain and, when it dries out, the grasslands, explained that when “the state of California was wild, it had a lot more wetlands.”
During the rainiest years, the whole valley could transform into an enormous, shallow sea. Floodwaters would spread over the landscape and percolate through the soil into the aquifers beneath. Little aquatic creatures would make their home in the tules and migrating birds would stop to gorge on their long journeys in the spring and fall. The Valley oaks and Fremont cottonwoods would rise, improbably, out of the shallows.
That appeared to be happening just east of Gustine in Merced County, as yet another storm from the tropics approached the valley: The San Joaquin River seemed to spread out and create an ephemeral wetland, a natural process.
But Kaminski pointed to the edge of the water, where three concrete slabs jutted into the marsh, and little slats of wood controlled the flow under the dirt road to the other side.
This marsh hadn’t flooded on its own.
Instead, the wetland was an artifice on top of an artifice. Powerful California interests “reclaimed” the Central Valley’s wetlands in the 19th and early 20th centuries, draining them for agricultural use and transforming the landscape.
The vast majority of the state’s marshes are gone.
But in little pockets in the state, people like Kaminski are reworking the land yet again to bring back a version of California’s past, in service of the future. By allowing rivers to spread out, flows are diverted from downstream communities, replenishing groundwater and staving off unwanted floods.
“These wetlands,” Kaminski likes to say, “act as a sponge.”
And the state agreed. In September, the California Wildlife Conservation Board earmarked $40 million for the nonprofit River Partners to spend on similar projects in the San Joaquin Valley.
But in the governor’s proposed budget released in January, that funding was axed. The news came early in the procession of climate-change-fueled winter storms that have led to staggering snowpack in the Sierra, extensive flooding throughout the state and more than 30 deaths. Facing a budget shortfall, Gov. Gavin Newsom had moved to kneecap efforts to use the historical floodplain as a way to recharge groundwater and to prevent disasters in human-occupied areas.
“In the San Joaquin Valley, we’ve got a product pipeline of about $200 million worth of floodplain expansion projects that are ready to go,” said Julie Rentner, president of River Partners. But the proposed budget, she said, “has zero dollars to be used towards that pipeline.”
Rentner said that habitat restoration cannot wait.
Well I certainly agree that habitat restoration cannot wait! But I still don’t understand why they didn’t mention our potential to do much of this fixing up for free? We’re certainly at work in the San Joaquin River Ecological Reserve! We got some good press on the BBC though:
Credit: UT Jackson School of Geosciences/ National Center for Health Statistics/ USDA Forest Service.
A new species of ancient beaver that was rediscovered by researchers in The University of Texas at Austin’s fossil collections has been named after Buc-ee’s, a Texas-based chain of popular travel centers known for its cartoon beaver mascot. The beaver is called Anchitheriomys buceei, or “A. buceei” for short. Steve May, a research associate at the UT Jackson School of Geosciences, said that the beaver’s Texas connection and a chance encounter with a Buc-ee’s billboard are what inspired the name.
May is the lead author of the paper that describes A. buceei, along with another, much smaller, species of fossil beaver. Published in the journal Palaeontologia Electronica, the paper provides an overview of beaver occurrences along the Texas Gulf Coast from 15 million to 22 million years ago based on bones and archival records in the UT collections.
While driving down a highway in 2020, May spotted a Buc-ee’s billboard that said “This is Beaver Country.” The phrase brought to mind the Texas beaver fossils he had been studying at UT’s Texas Vertebrate Paleontology Collections.
“I thought, ‘Yeah, it is beaver country, and it has been for millions of years,'” May said.
A. buceei lived in Texas about 15 million years ago. To the casual observer, it probably wouldn’t have looked much different from beavers living in Texas today, according to study co-author Matthew Brown, the director of the Jackson School’s vertebrate paleontology collections. However, one key difference is size. A. buceei was bigger—about 30% larger than modern beavers—though still much smaller than the bear-size beavers that lived in North America during the last Ice Age.
The UT collections includes A. buceei fossils from six Texas sites. But most of what researchers know about the new fossil beaver comes from a unique partial skull from Burkeville, Texas. The fossil is a fusion of bone and brain cast that was created when sediment naturally seeped into the beaver’s brain cavity eons ago, creating a rock replica of the brain as the specimen fossilized.
See the rest of the article. And there is another bit of news on PHYS-ORG that might lessen concerns about the greenhouse gas produced in wetlands.
Annual mean near-surface air temperature response to methane, decomposed into (a) longwave and shortwave effects; (b) longwave effects only; and (c) shortwave effects only. Credit: Robert Allen/UCR
Most climate models do not yet account for a new UC Riverside discovery: methane traps a great deal of heat in Earth’s atmosphere, but also creates cooling clouds that offset 30% of the heat. Greenhouse gases like methane create a kind of blanket in the atmosphere, trapping heat from Earth’s surface, called longwave energy, and preventing it from radiating out into space. This makes the planet hotter.
“A blanket doesn’t create heat, unless it’s electric. You feel warm because the blanket inhibits your body’s ability to send its heat into the air. This is the same concept,” explained Robert Allen, UCR assistant professor of Earth sciences.
In addition to absorbing longwave energy, it turns out methane also absorbs incoming energy from the sun, known as shortwave energy. “This should warm the planet,” said Allen, who led the research project. “But counterintuitively, the shortwave absorption encourages changes in clouds that have a slight cooling effect.”
This effect is detailed in the journal Nature Geoscience, alongside a second finding that the research team did not fully expect. Though methane generally increases the amount of precipitation, accounting for the absorption of shortwave energy suppresses that increase by 60%.
Both types of energy—longwave (from Earth) and shortwave (from sun)—escape from the atmosphere more than they are absorbed into it. The atmosphere needs compensation for the escaped energy, which it gets from heat created as water vapor condenses into rain, snow, sleet, or hail.
“Essentially, precipitation acts as a heat source, making sure the atmosphere maintains a balance of energy,” said study co-author Ryan Kramer, a researcher at NASA Goddard Space Flight Center and the University of Maryland, Baltimore County.
Methane changes this equation. By holding on to energy from the sun, methane is introducing heat the atmosphere no longer needs to get from precipitation.
Additionally, methane shortwave absorption decreases the amount of solar radiation reaching Earth’s surface. This in turn reduces the amount of water that evaporates. Generally, precipitation and evaporation are equal, so a decrease in evaporation leads to a decrease in precipitation.
“This has implications for understanding in more detail how methane and perhaps other greenhouses gases can impact the climate system,” Allen said. “Shortwave absorption softens the overall warming and rain-increasing effects but does not eradicate them at all.”
. . .
Scientific interest in methane has increased in recent years as levels of emissions have increased. Much comes from industrial sources, as well as from agricultural activities and landfill. Methane emissions are also likely to increase as frozen ground underlying the Arctic begins to thaw.
Regardless of our contribution to the atmosphere, as the first article shows, we beaver folks have been at this for a very long time. It’s your recent behavior that’s causing the problems! Check out the report.
Beavers from Space launched April 4th on the Zooniverse. The citizens science project uses satellite imagery to uncover beaver habitat in Canada. Read on below to learn more about how you can help out.
