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

Tag: Popular Science


Our retired librarian friend from Georgia, Bob Kobres, is always finding us interesting tidbits. Whether it’s hot off the presses new beaver research in phys.org or some historical gem that the world has long overlooked.  This comes from a letter to the editor of Popular Science magazine in 1884. And it’s a whopper.

The author, one Samuel Aughey of Lincoln Nebraska, is responding to the May issue in which Dr. Stockwell wrote about Henry Morgan’s seminal book, “The beaver and his works“. He begins much in a familiar manner, saying it was a fun read but just because some researchers never saw something doesn’t mean it never occurs.

 Rickipedia used to quote, “Absence of Evidence, isn’t evidence of absence“.

And then goes on to tackle the thorny debate about whether beavers use their tails in construction. Dr. Stockwell apparently said “No way”, but Samuel had other ideas.

pushing

Okay, did you get that? Samuel is minding his own business when he suddenly sees a group of beavers work together to move a trunk – some pulling some pushing. Already I’m intrigued because we never really saw beavers working together on a single log.

failedSo there’s a little rut in the hill and the beavers can’t get the log over it, no matter how many times they try. Time for a new strategy.

captureOkay! Beavers in a huddle form two teams, the pull team and the push team! The pull team LAID THEIR TAILS OUT FLAT and the log was rolled onto them. Then they hauled that log forward hoisted, as it were, by their own petards.

releasedOompf! After that big log gets moved the pull team examines their tails to make sure they weren’t injured in the line of duty. Nope, all fine here.

samuelSamuel ends with “Just because they didn’t go to your fancy schools doesn’t mean what they saw didn’t really happen”. And by the way who is this wacky Samuel Aughey of the obvious “tinfoil hat” beaver brigade?

Samuel Aughey Jr. was a minister and naturalist/ geologist in Nebraska and Wyoming from 1864 until 1886. He graduated from Pennsylvania College (now Gettysburg College) in 1856 and then attended seminary there. Aughey came to Dakota City, Nebraska, in 1864 as a “home missionary” for the Lutheran Church. After resigning this position in 1867, he worked for the Dakota County government from 1866 until 1869 as superintendent of public instruction and county surveyor. He was named the first professor of natural science at the University of Nebraska in Lincoln in 1871.

Well okay, professor of natural science, superintendent of schools and county surveyor. But still we’re talking Nebraska and anyone that could read would be called a scholar there, right? Here’s a partial list of is publications:

captureWhich all goes to leave me scratching my head in wonderment. Surely when there were millions more beavers they might have worked together differently. But did they use their tails differently? Samuel thinks that some beavers have better ideas than others. Not just any beaver could do it. Go read the whole letter to the editor here and puzzle for yourself if it could possibly be true.

There are more things in heaven and earth, Horatio,
Than are dreamt of in your philosophy.

Hamlet, Act I: Scene 5


Do you remember those story books of “the borrowers” when you were a kid where tiny people lived in the house and made use of scraps and odds and ends to decorate and purpose their little lives? They used buttons as umbrellas or safety pins as cranes. Well, I’m beginning to feel like beaver websites have borrowers too, because I can never tell where one of our graphics is going to show up next! Take this for example, from the massive Canadian Broadcasting Corporation, whose more than 1 billion dollar budget was trimmed by 10% in 2012. This image was on the CBC docs facebook page yesterday. Look familiar?

 

snaggedNow I’ll share my last egg salad sandwich with a stranger who asks for it, but I’m never happy when people don’t bother to ASK. Especially a tycoon of a stranger with departments full of graphic designers and photographers who can afford make their own dam graphic. Just to follow the history of those images, the three kits on the bottom were photos from Cheryl Reynolds which I painstakingly selected for our graphic designer friend Libby Corliss to turn into silhouettes when momma beaver died in 2010, and the shadow adult at the top was drawn by the designer Kiriko Moth who made our logo. Silhouettes aren’t impossibly hard to generate from photos, but it takes some doing and the right photos have to be selected with clean edges and everything visible. Certainly a billion dollar corporation with a team of graphic designers and photographers can make their own dam silhouettes?

So of course I marched off to the producer of the Beaver Whisperers Documentary who has become a good friend and would never want her honor besmirched with stolen graphics and she promptly made sure they pulled the graphic and will be on the phone today making things right.

Capture

Hmm…Can you guess who I think should be getting some “Fabulous Swag” for their beaver festival?

Now on to more somber tasks because Popular Mechanics decided to write about beavers sequestering carbon and the pro-beaver article got a huge amount of pushback from educated environmentalists like this man.

The Odd Way Beavers Impact Climate Change

This suggests that beavers play an important role in keeping the ecosystem resilient against climate change, drought and wildfire, the study notes. Wohl found that the abandoned beaver dams she studied made up around 8 percent of the carbon storage in the landscape, and that if beavers were still actively maintaining those dams, the number would be closer to 23 percent. As such, wiping out most of the continent’s beaver population during pre-Colonial times probably had quite an impact on the climate.

What? Beavers are good for something? The bemused article drew this response:

A Brown 07/18/13 at 5:22 pm

As a retired Department of Environmental Quality Employee and an owner of timber land, this is a stupid article on environmentalism gone crazy in past history. The beaver is a destructive animal that needs to be hunted or exterminated. A single beaver can and will build a dam that will flood and create a pond anywhere from 2 to 10 acres. All vegetation (trees, brush, plants) are killed in this pond area created. Wildlife/insects in this newly created pond area move or die from drowning.

As far as the “release of carbon dioxide” with the European/Colonial settlement of North America and the beaver trapping that occurred from the 1500’s to the 1800’s – give me a break. Beavers continue to cut down trees and brush AFTER their dam and ponds are built – yes, the destruction exceeds the pond area. Beaver teeth grow through out their life like most rodents and they must alway chew/grind on something. Why doesn’t the author try to calculate how much forest was saved (carbon dioxide sequestered) by trapping the beavers?

Thanks Mr. Brown for the reminder of what we are up against. If we are getting attitude like this from the Department of Environmental Quality, you can certainly understand why we are having trouble with Cal Trans or Public Works.


Beaver friend GTK wrote recently that the entire popular science archives are now available online. Surprisingly, there are several entries about beaver on Mars. Here’s a 1930’s favorite by Thomas Elway:

Check out the illustration in the center of the beaver-mouse-pig at the helm of some kind of fiendish beaver spacecraft. I haven’t yet stopped laughing at that. Thank you so much GTK for the best beaver image ever. The article is a little more thoughtful.

Read that last line again please. ‘evidence not accompanied by signs of intelligence’, ergo, it must be a beaver. Because certainly beaver don’t leave signs of intelligence like dams or lodges or canals that might be visible. They are too busy flying their spacecraft and plotting world domination.

Ahh given the myriad of misunderstandings beavers have been subject to, this seems like par for the course. Beavers eat fish? Okay. Beavers cause Giardia? Okay. Beavers flood cities? Okay. Beavers live on Mars? Why the hell not?

 

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