If you were anywhere near Hamilton Montana tonight you drive this evening to Bitteroot Audubon and hear all about the fascinating research of this gentleman, Torrey Ritter. He will present his 2.5 year research on why beavers matter to water storage, climate change and ecology, And then tomorrow you could go to the Wildlife Film Festival just a few miles away in Missoula and hear the same sermon from a different preacher at the movies!
Montana is getting a crash course in beavers this week,
Bitterroot Audubon’s April meeting will feature a presentation on beavers, nature’s ecosystem engineers, by Torrey Ritter. Torrey led a 2 1/2 year research project at MSU aimed at better understanding the ecology of beavers in relation to habitat restoration strategies. Beavers have been identified as a keystone species and an ecosystem engineer because they drastically modify the habitats they occupy and in doing so create environmental conditions that allow certain plant and animals species to inhabit an area where they may not otherwise occur. Researchers radio-marked dispersal-age beavers to evaluate dispersal distances, timing, and outcomes. They also mapped beaver activity to evaluate habitat preferences of beavers starting new colonies in novel areas.
Torrey is a true Beaver Believer who finished his degree at Montana State University studying beaver dispersal patterns and went back for a masters in Organismal biolology (which I didn’t even know was a thing). His wiki page encourages everyone to support your local beavers, so you can tell we’d be fast friends.
Here’s a short look at his his work, and I bet he already has tickets to the beaver premiere tomorrow. Aside from a bad habit of picking up beaver by their tails there’s a lot to like about our new friend in Montana.
His presentation is a great way to spend a monday evening. and then tomorrow you can go see this:
This whimsical yet inspiring film captures the vision, energy, and dedication of a half dozen activists who share a passion for restoring the North American Beaver (Castor canadensis) to much of its former habitat and range. THE BEAVER BELIEVERS show us how this humble creature can help us restore streams and watersheds damaged by neglect.
SPONSORED BY CLARK FORK COALITION AND NATIONAL WILDLIFE FEDERATION
Did you see that tagline?
“A biologist, a hydrologist, a botanist, an ecologist, a psychologist and a hair dresser tackling climate change one stick at a time.”
Yesterday Jon and I were startled to see our first butterfly of the year, a lone Mourning Cloak in Susana Park. Since it’s January we assumed it was confused, or over eager. But Jon observed more on his longer walk in Franklin Hills. I saw my first popcorn tree burst with blossoms on the way home. The climate is changing whether we like it or not. But maybe there is something we can do about it.
We generally don’t think we can do much about the weather. Expert prediction and analysis, such as that from Weather Underground, help us prepare for storms, cold and hot spells, errant jet streams, and the like. But the weather seems to insist on having a will of its own.
On a local level, however, there’s much we can do to affect a number of weather factors—temperature, for example. What makes the temperature difference is water, shade, and ground cover. Nature’s rule is that healthy soils are never bare—asphalt is the equivalent of very bare soil, made worse by its low albedo, i.e., low reflectivity and increased heat absorption. Here’s one place where water comes in: it’s a great temperature buffer. It’s the lack of water that causes day-night temperature extremes in deserts, for example. With abundant and strategic use of soils, plants and biodiversity to capture and cycle water, local temperatures, including heat-island effects in cities, may be significantly moderated.
There is growing evidence that we humans may have far more control over the meteorology above our heads than we think. We can create weather more to our liking—and beneficial for our survival and that of many species—by paying attention to the soils, plants and other living creatures underfoot and all around us.
Isn’t that interesting? To think that we create the weather around us? We know that lush trees create micro climates, and that beaver ponds can act as micro climates on the landscape, but I admit I never thought of it in larger terms before. Or as a function of biodiversity.
Riparian zones (the areas around creeks and rivers) are the lifelines of arid and semi arid regions, and often corridors of great biologic diversity. Recovery of the riparian zone (sedges, rushes, willows) is the first step in restoring floodplain function. Riparian areas can and do respond to changes in grazing in just one or two growing seasons where the water table is available to the riparian plants, even in areas with as little as 9 inches of annual precipitation.
In northeast Nevada, an old, broadened-out gully called Susie Creek (see figure below) changed dramatically within the first few years following the change in grazing management. 15 years into the project, beavers showed up on their own, making a major contribution with their water engineering skills. Even after a four-year drought (2012–2015) in which other ranere having to truck in water, the Susie Creek area still had perennial ponds and streams.
This work was a collaboration among many participants, including federal and state agencies and Maggie Creek Ranch, led by fisheries biologist Carol Evans—who wanted to bring the Lahontan Cutthroat Trout back to Susie Creek—and rancher Jon Griggs, who wanted grass and water for his herd. (See video of Carol and Jon telling their story here). If we can do this in Nevada, we should be able to do it just about anywhere!
Of course water cycles, It changes forms and rises as vapor and returns as rain and dew. So having more available water in the creeks and water tables is going to affect its cycle. It seems so obvious when you think about it. How does it affect the weather when we leave little pockets of water in beaver ponds all across the landscape rather than letting all the rivers run their course to that big ocean.
Did the weather actually change when we trapped out all the beavers? Probably not right away, but a few years after when their dams started to decay and lose their function. I can imagine that the west looked and felt different 3 years after all the beaver were taken. Of course, no one had time to notice.
Because they were too busy looking for the next gold.
You could go to college, sit thru boring classes, study for exams, earn a degree and owe millions of dollars afterwards OR you could just read this website for free every day and be a genius! Since I already did the first one, I’m committed now to the second. This arrived yesterday from USFS hydrologist Dr. Suzanne Fouty who let me know she will actually be retiring in March. (The forest service will be lost without her, but I’m selfishly hoping that all that free time means she will come to the beaver festival!)
Konrad worked with Joe Wheaton to study this issue. .The question addressed was whether an increase in beaver dams could make up for the effects of climate change on the receeding snow pack. The author looked at the number of dams and calculated the volume of water behind each. Then he did the same with the volume of the snow pack in a prior year.
The results are kind of depressing in that they indicate that climate change is going to kick the snot out of our water supply and beavers can only help a little bit.
What he found is that beaver dam amount for a small fraction of overall snowpack water, but that they do indeed contribute. I guess the moral of the story is “Don’t screw up your climate!” And if it so happens that you are so stupid you do mess up your climate, then the moral is “You better have a LOT of beavers around to do what they can.”
Beavers can’t hit the undo button for us, but they CAN HELP if we let them. That should be foremost on our minds when we think about what to do when they block a culvert or flood a basement.
The next educational moment of the day is from Eli Asarian of River Bend Sciences who let me know about an upcoming discussion of the surprise beavers in the artic that we might be able to attend for free.
The next Northern Region, Alaska Section, AWRA Monthly Brown Bag Presentation will be given by Dr. Ken Tape, University of Alaska Fairbanks – Water and Environmental Research Center, on “Tundra Be Dammed: Beaver Colonization of the Arctic”. We will also have this presentation available for Free over the web (using Webex). Please see the following URL for more information. The role of beavers on the hydrologic landscape has always been significant in North America. Ken’s presentation on changes in the Arctic has relevence to potential changes across North America. Please join us next week and enjoy an informative presentation on Alaska.
The American Water Resource Association does monthly brown bags in Fairbanks and allows for remote participation through its webinars. To participate contract them here. I’m pretty curious about what gets said about these permafrost-ruining beavers in the Tundra, so maybe I’ll see you there!
This is what irresponsible reporting does in high places. It spawns a flurry of copycats that send tendrils around the panicked planet. I saw three such headlines this morning. How many will there be tomorrow?
You have an awful lot to be sorry for, New York Times.
Research shown at last week’s American Geophysical Union meeting revealed that everyone’s favorite rodent has been using sticks to build dams on the Alaska’s treeless tundra. The colonization is reshaping the geography of the north and could allow other animals to follow beavers into the brave new warming world.
It also comes with a downside, though. The dams create ponds that help keep beavers wet, but those ponds also contribute to melting permafrost. That releases methane and carbon dioxide, speeding us toward a hotter future. While it’s not like beavers are going to overtake humans anytime soon as the dominant drivers of climate change, the findings are another unmistakable sign of unexpected changes overtaking our planet.
Turns out beavers are getting busy everywhere. Of the 83 sites researchers identified as potential beaver hot spots, 60 were being impacted by beaver activity. In some cases, they could see beaver dams be built, fail, and be rebuilt again.
Why the beavers are moving into the tundra is an open question. Climate change may play a role, but it’s highly speculative at this point. Ken Tape, a University of Alaska, Fairbanks researcher working on the project, said it’s difficult to know if trappers hunted beavers off the tundra prior to the start of the aerial photography.
“The beavers are very well adapted to working with what they have,” Jones said.
HORDES OF BEAVERS!
RUN FOR YOUR LIVES!
HIDE YOUR WIVES AND CHILDREN!
Good Lord, how many times can a reasonable woman be expected to slap her forehead in one morning! Now in addition to the many trappers, farmers and oil drillers against beavers, this post in on EARTHER means there will be some greenie liberal types that hate them as well.
Beavers are such big meanies hurrying climate change!
You know, the word “hordes” has two definitions. The first is of course deragatory and means lots of massing individuals. But the second comes to us from anthropology, and is defined as
“a loosely knit small social group typically consisting of about five families.”