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

Month: October 2017


don't fear the beaverHappy Halloween! I know everyone is busy putting the finishing touches on their child’s beaver costume but I thought I’d give you a few chuckles anyway. The first is the constant reminder that people can’t tell beavers and nutria apart. Even when the article is canadian. Well, I guess it is time for trick-o-treating. Maybe that nutria’s dressing up? It’s that old story of the couple getting married in Saskatchewan, not sure why it’s re-running in the business pages.

Now it says the photo is from wikipedia commons. It’s not Cheryl’s or the famous one we usually see. Do you suppose they checked wikipedia for actual beaver?

CaptureThis headline got my attention but it’s Long Beach MISSISSIPPI not California. Whew! That makes sense, because if there are beavers in Long Beach CA it would be quite a surprise.

Levens says, “This morning, first thing, we had the city engineer come in, and we had the public works engineer, fire chief, police chief, the mayor and myself, all meet and we’ve been meeting all morning…going over canal one, canal two, and canal three. They’ll ride the canals in the helicopter, get video footage, see if beaver dams that have been blocking things, and talk to the people who control canals one, two and three to see what to do, expanding, widening it, to keep the drainage going.”

There’s always a chance beavers are to blame, according to every public works engineer everywhere. Here’s a little something that caught my fancy yesterday. Have fun tonight!

Brown


Another savory dish Rob Rich sent my way was this essay by author Ginny Battson. It is a splendid, thoughtful and thought-provoking read perfectly designed for a sunday afternoon by the seaside or a cup of coffee and the first snow in your uncle’s cabin. Which means it deserves much broader thinking than I can summon, but the beaver parts are really, really good so I’m going to share them.

Beavers are Fluminists

I learn from rivers, as do the beavers. I spend time in and around them, observing and sensing. Two and a half thousand years ago, the ancient philosopher Heraclitus also wrote on the profound things he learned from rivers. In an age before sHERCLITUScience, he looked for guiding principles in nature. What he found in rivers was a permanence in a reality of apparent change. All is flux, a matrix of matter and movement. The river is an analogy for an elemental cosmos, yet materially effervescent. Rivers are also life systems ~ complex and dynamic.

beaver swimmingBeavers, the river keepers, have evolved to be more than the sum of themselves. Beavers live in the life-flow, interrupt and send it in multiple directions. Known to ecologists as ‘keystone,’ First Nationers instead call them ‘sacred centres’ of the land. For they are whirling hubs of life-diffluence and life-confluence, integral to the flow just as mind cannot be separated from body. They are dam and bridge builders, storing water at times of plenty for times of drought. They sequester carbon kit chewing over beautiful waterby trapping it in fluvial muds that eventually become rich soils. They are coppicers; the trees they fell to feed upon and rear their young will regenerate, beaver-cuts catalysing a diversity of plant and animal life. They are also wildlife protectors ~ during winter, woody debris left trapped behind dams are buried beneath deep snow, and provide shelter for a host of smaller mammals and reptiles during the bitter cold. And then, when the northern hemisphere tips nearer to the Sun, melt water forms reservoirs and a rising water table, creating habitat for amphibians and a plethora of bird species, including waterfowl ~ wood duck and heron, migratory waders and passerines. New lentic deeps amongst woody debris provide fish fry safe passage to grow to adulthood. Majestic osprey take the adults. In lotic flows downstream, clouds of black fly larvae lay submerged, attached toNorth American Beaver Castor canadensis Martinez, CA substrate with silk, to emerge in spring and breed, then feed the bats that hunt on the wing above the beaver-cuts. The dams may eventually blow-out by flood, and the beavers will find new territory. Upstream, moose rear youngon regenerating meadow grasses years after dams are abandoned. This really is rich habitat; the smell of river, wood and beaver is intoxicating.

If beavers could speak human, they may also say: Into the same rivers we step and do not step, we are and are not.

(Heraclitus Homericus B49a)

Ginny introduces the word Fluminism to explain the interconnected dynamics of the universe flowing forwards, connecting and enriching  and says it’s what beavers do best. She even goes so far as to call it a kind of love, or the doing and caring parts of loving. Her essay is filled with the richest imagery and most fluid prose. You should really tuck away the link and read it sometime when you have time to reflect. For now I will just say that she GETS beavers. I remember Skip Lisle similarly said the principal of beavers is dynamism, meaning change. They change things, things change them, the things that are changed by them change other things. Maybe after 10 years of watching beavers I can see how they changed me, how my life has rearranged itself because of their work.

Back to the Maine woods, and it’s getting late. I’m a little bit edgy because the light is falling. As I hurry back with my baby over the bridge towards Gilbert, we hear the slap of a scaly, flat tail hitting the water ~ splash. I stop and turn us around to follow the sound. My eyes adjust to the watery scene. And there is the beaver, Fluminist, swimming, with a wet, brown head visible for a moment and shiny eyes, before diving beneath the inky reflections of a darkening sky. She’s warning others we are here. Though we’d never harm her, others might. I feel at peace knowing she is here, knowing she has a rich intrinsically valuable life, full of love for this world in the river she understands so intimately. I point her out to my baby who instinctively feels both the joy and excitement. Formative moments, for sure. There is so much yet to learn from Ahmik, Fluminist, and I walk us home full of awe and gratitude.

North American Beaver Castor canadensis Martinez, CA
North American Beaver
Castor canadensis
Martinez, CA

 


CaptureNot too long ago Rachel Hofman of the NWF magazine in Vermont contacted me about an event they were co-sponsoring with the Clark Fork Coalition in Montana about the benefits of beavers. She was working on a flyer to promote the event and wanted to use a few of Cheryl’s great photos to do so. The talk would be given on October 25th by Amy Chadwick, who is also a friend of ours.

It sounded like a fine cause, and it reminded me I hadn’t seen that particular photo in a while, so Cheryl gave consent and then we pretty much forgot about it because not long after our exchange the entire napa-sonoma valley erupted in flames and that held our attention for a while. Yesterday I was reminded of it by reader Rob Rich who sent me some great information they put out on beavers. It reminded me that I had forgotten to share it, so enjoy!

Beavers – Nuisances or Watershed Heroes?

For CFC’s inaugural Beaver Month we chatted with Andrew Jakes, Regional Wildlife Biologist for National Wildlife Federation about the unsung bucktooth heroes of the watershed – the beaver.

Why are beavers considered ecosystem engineers?

Beavers aren’t just considered ecosystem engineers…beavers are THE quintessential ecosystem engineer! They change a landscape like no other species in the world, besides humans. They change the landscape to suit their needs, and when they do that, it turns out that they change a lot of other things too.

OK, so what else changes in the landscape when beavers are present and building dams?

So much! When beavers show up, a lot starts to change. Studies have shown that beaver dams change everything in the system; from soil to vegetation to water quality to wildlife. It’s hard to sum up in only a few sentences, but I’ll do my best to give you a summary…

First of all, beaver dams slow the flow of water. This means water is on the landscape for longer. This can cause the floodplain to expand, soil structure to change, and the water table to rise. All of this also means that riparian vegetation can thrive. This means extra foraging opportunities for beavers and other creatures, so more wildlife starts to frequent the area. It’s no secret that wetlands are beneficial to the ecosystem, and beavers are little wetland creators.

The bottom line of all this is that when a beaver dam shows up, we see an increase in biodiversity, which thereby means the ecosystem becomes more resilient.

Mother and kit enjoying fennel: Cheryl Reynolds

You can read the rest of it the fine story here.  The entire ‘beaver appreciation month’ concluded with the talk by Amy Chadwick at a local pub in Missoula on Thursday evening. Obviously convincing the land owners of Montana to coexist with beavers takes the best and the brightest, and Amy (who worked with Skip Lisle) is well up to the task.

Walk and Talk: Busting Beaver Myths

During the month of October, the Clark Fork Coalition is putting a spotlight on the hard-working, fur-ball hero of the watershed – the beaver.  Join the Clark Fork Coalition and Ecologist Amy Chadwick for an evening of natural history and cutting-edge restoration featuring beavers and beaver mimicry. Chadwick is an Ecologist at Great West Engineering and the chair of the Montana Beaver Workgroup. Amy has been working in stream and wetland ecosystem assessment and restoration in Montana for 20 years, but in recent years her work has focused primarily on beaver habitat restoration and improving natural water storage.

Amy will share facts of about beaver ecology, review how beaver act as ‘ecosystem engineers’ in western watersheds, and share the implications lost beaver habitats on our water budget.  Chadwick will be joined by Andrew Jakes, Wildlife Biologist with the National Wildlife Federation for a discussion of beaver habitat recovery work underway in the Upper Clark Fork and a Q & A session.

Don’t you wish you were there listening to Amy’s talk? I met her at the Beaver Conference in 2013 and we have kept in touch over the years when beaver issues arose over the years. She worked with Skip installing flow devices in the area for a while and now carries on the work bravely on her own. It’s wonderful to see folks like Amy and the Clark Fork Coalition working in their own backyard to make way for beavers and teaching others about their benefit to the environment. I hope the beaver night was a resounding success and I hope NWF thinks of us first when they have a beaver event to promote in the future!


Screen Shot 2017-10-28 at 5.45.35 AMYou’ll be happy to know that the beavers in Hope Valley on the west fork of the carson river are doing just fine. We counted 7 dams yesterday in the cool clear flat water edged by leafless aspen and tamarack. It looks like nobody is messing with their idyllic lifestyle in the curvy shallows of the carson and we were happy about that!  I’m sure they’re hard at work in these last warm autumn days to stock up that food cache for the winter. Good luck!

It is also very good news for us that one of our best beaver buddies in the UK is very tech savvy and made sure the complete autumn watch episode on the Cornish beavers was online and shareable. I’m not thanking them by name because the BBC frowns on this sort of thing! This is a rare treat so even if you never ever watch any video I post WATCH THIS! Trust me.

Wasn’t that amazing? They are being so smart about this, with the baseline study and the careful followup! Hurray for the farmer who had the sense to step into the forefront of this issue and allow his land to be reborn.

You never know where unexpected beaver friends will come from next. Here’s a fine defense of Heron pond from the Cabinet Press in New Hampshire! The author, Suzanne Fournier, is not at all happy with the actions of the conservation commission in charge.

Anti-conservation move must be opposed

The Milford Conservation Commission voted on Oct. 12 to lower Heron Pond by a foot! It’s quite an arbitrary decision, motivated not by what’s in the best interest of the pond and the threatened and endangered wildlife it sustains, but by vague expressions from the Public Works Director that the water is high enough already.

In summer 2014, Director Riendeau’s crew destructively lowered Heron Pond by four feet, absent a real emergency. The beavers eventually repaired the breached dam.

In fall 2014, along the Rail Trail, the CC had beaver pipes installed so low down that three ponds were drained of much of their water, one of them the lovely place called Dickerman’s Pond.

The CC members should be educating themselves more about the value and functions of a healthy wetland like Heron Pond that actually plays a major role in flood prevention.

They would also learn that drawing down Heron Pond with its Blanding’s and spotted turtles during the fall violates the directives in the N.H. Wildlife Action Plan that says turtles would likely die.

This anti-conservation move on the part of the CC must be opposed by all who care about wetlands and wildlife.

Nicely put! I honestly think this is a historic first for beaver reporting. Never before have I seen any paper or person complain about a flow device installed TOO LOW so that too much water drains away. Even in Martinez we didn’t complain about that because we were too grateful the pond and the beavers got to stay at all! Keep the pressure on, Suzanne. We think you’re doing ponds a great service!

 


There’s a nice story this morning about watching beaver activity as we head towards winter from Marshall Helmberger of Minnesota.

The busy season

It’s the busy season at our neighborhood beaver pond, as the locals prepare for the impending season of scarcity. The signs of activity are everywhere, particularly along the pond’s edges, where the resident beavers have recently felled at least a couple dozen youngish aspen to put away for the winter.

It all seems pretty familiar. We fill our own wood sheds and stock the pantry and freezer with the season’s produce, and the beavers do pretty much the same. This time of year, the beavers are cutting aspen and willow and storing the branches and smaller trunks in a huge cache under the water, just outside one of their two lodges. These caches are readily visible this time of year— since some of the smaller limbs often stick out from the water— and are an easy way to tell if beavers are planning to spend the winter in any given lodge. Beaver lodges can last for decades and they can fall in and out of use over the years, so this time of year I always look for the telltale signs of a fully-stocked pantry to determine if a lodge is currently active.

Once the ice arrives on the beaver pond, which could happen this coming week given our recent cool down, the beavers will be locked in for the winter. They’ll live the next several months within their dark lodge, only occasionally venturing out of one of their underwater exits to grab a bite. While their pantry of sticks is their primary source of winter food, they also store large amounts of fat in their tails this time of year, which they will also rely on during the winter months. A beaver’s tail, in the fall, is usually substantially larger that it will be when the beavers emerge from their lodges next April or May.

Don’t you wonder what that’s like? Or which family member you like enough to be stuck in a closet with for three months out of the year? I’ve been fairly lucky in terms of opportunities to see beavers, but I will always regret not getting to see this. The tell tale food stash and the signs of beavers cracking through the ice to get whatever they can forage. I’m not entirely sure I believe the last sentence about their tails being smaller in May, but I bet our beaver size has a lot to do with not needing to live off reserves. Marshall does a nice job in this piece by capturing the urgency of late fall.

Speaking of beaver authors, I heard from author Ben Goldfarb that he just had a very enlightening chat with our city council man Mark Ross about the beaver story. He said it was helpful to get the city perspective on the story.  (I would just LOVE to be a fly on the wall for that conversation, wouldn’t you?) I bet there were lots of fears of flooding and very few honest concern about voters in his tale.

Meanwhile it you want to get the story from the other perspective, why not listen to the talk I did Tuesday from the convenience of your desktop. I really appreciate fur-bearer defenders for getting this online and sending me the link! This will give the whole story plus some never before disclosed secrets from behind the scenes. (You can thank them for doing tall his by dropping 5$ in their donation jar.) I just realized that the anniversary of that big November meeting is a week after halloween! Perfect timing to hear it all again or for the first time. I think my voices sounds lower, what do you think?

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