And the award for the most credit given to ridiculous helpers goes not, as you may have thought to Rudy Guiliani, but to everyones favorite pack-hunting predator: Wolves. Apparently when wolves kill beavers they make more streams.

Didn’t you know?

Wolves alter wetland creation and recolonization by killing ecosystem engineers

Beavers are some of the world’s most prolific ecosystem engineers, creating, maintaining and radically altering wetlands almost everywhere they live. But what, if anything, might control this engineering by beavers and influence the formation of North America’s wetlands?

In a paper to be published Friday in the journal Science Advances, researchers with the University of Minnesota’s Voyageurs Wolf Project and Voyageurs National Park observed and demonstrated that wolves affect wetland ecosystems by killing beavers leaving their colonies to create new ponds.

Beavers are important ecosystem engineers that create wetlands around the world, storing water and creating habitat for numerous other species. This study documents that wolves alter wetland creation when they kill beavers that have left home and created their own dams and ponds.

Juvenile beavers disperse alone and often create new ponds or fix up and recolonize existing, old ponds. By studying pond creation and recolonization patterns along with wolf predation on beavers, project biologists and co-authors Tom Gable and Austin Homkes found that 84% of newly-created and recolonized beaver ponds remained occupied by beavers for more than one year. But when a wolf kills the beaver that settles in a pond, no such ponds remain active.

This relationship between wolves and dispersing beavers shows how wolves are intimately connected to wetland creation across the boreal ecosystem and all the ecological processes that come from wetlands.

So the idea is that when wolves kill beavers  who are making a new pond that pond doesn’t happen, and the new pond made by some lucky beaver who wasn’t killed by beavers will survive. See how wolves shape the streams?

Puleeze….that is like saying that a car hitting squirrels determines the rate of acorn production in the forest that year.

Of course the news is bouncing around the entire internet this morning. It even appeared on ABC. Because nothing says “Fun story” more than a beaver meal making streams.

As predicted in my little red hen retelling a month ago the very smart voices who were too busy to take on the beaver summit have indicated they very much want to be part of the first planning meeting. Wonderful. Maybe we’ll get to eat some bread when all this is over! I spent yesterday working on this, which is much harder to do than it looks. At least for me. What do you think? Something like this but better.