Beavers are again being recognized by humans as creatures crucial to holding together the natural world across much of North America and Europe. Where they are able, beavers create wetlands. Those beaver wetlands do so much for so many other beings, including us. Let’s explore California’s beaver resurgence for a few minutes.

History

There once were two beaver species, then only one living alongside indigenous people, then even those were nearly wiped out. In modern time, beavers have been variously killed, ignored, restored, or coexisted with. The Big Beaver of the Pleistocene, like so many other species, winked out when humans arrived on the continent. Probably they were too tasty. Its smaller cousin, though, survived. There are names for beaver in many native people’s languages across California. But the Old World Peoples persecuted both the native peoples and the beaver. Beavers were trapped to extirpation so early in those terrible times that as records started being written, there was already doubt that beavers had ever been in most places across the State. The state’s wildlife department finally protected the few remaining of the species and then began restoring them. Beavers, farmers, water managers, and road departments had problems working it out, so the State started allowing, and still allows, beavers to be killed where they cause too big of problem. 

Over the past 20 years, brilliant folks from Back East figured out a way to solve some of those problems, so beaver coexistence technology is now a thing in California. At the same time, in just the last 5 years, our wildlife officials have started translocating problem beavers to restore the species in more places. These recent pro-beaver developments come just in time for so many reasons.

Beaver Biota

Where beaver go, many follow. Three weeks ago, I saw a river otter stick its head out of the water in a pond behind a beaver dam. River otters follow beavers as do ducks, egrets, herons, kingfishers and so much more. Rare amphibians and reptiles likely were once more abundant due to beavers, including California red-legged frogs, San Francisco garter snakes, California tiger salamanders, Western pond turtles, and Santa Cruz long-toed salamanders. Mostly, those rare species rely on manmade cattle or farm ponds nowadays, but what about before those? 

I have studied the landscape for 50 miles in every direction around Santa Cruz and have found very few natural ponds. Coastal ponds are either in earthquake faults, vernal pools in ancient dune declivities (e.g., Ft. Ord), or impoundments at the back of more modern dunes. These situations are all quite rare. Looking further abroad, there are more vernal pools in the Central Valley and one can imagine oxbow lakes along many of California’s rivers before modern humans messed so much by channelizing rivers. If we could restore beaver to the landscape, I’m betting we could recover frogs, snakes, turtles and salamanders…and even fish! Most agree that California’s many species of super endangered salmon once thrived in the food-rich backwaters of beaver ponds.

I could go on and on about the many other wetland species that follow beaver pond architecture, but I’m thinking you get the idea.

Fire Stop

Recently, “Smokey the Beaver” has become a meaningful meme. In the past decade Californians have witnessed catastrophic infernos raging across the landscape like no one had previously imagined was possible. Across the West and north through Canada the same pattern has been emerging: big, big fires fueled by climate-change-induced drought, heat, and winds. The solution to fire: water. When beavers dam rivers and streams, they create fire breaks. In the huge footprints of “The Big Black,” post-fire, thank the beaver for the green strips that offer refuge to whatever wildlife may have survived the blaze. I have stood my ground on the edge of two approaching wildfires and have witnessed masses of fleeing deer, rabbits, wood rats and more running from the flames. I imagine those creatures finding beaver wetlands and hunkering down, eyes wide, hearts racing as the world around them crackles, roars, and burns. Beaver firebreaks can help save human lives and infrastructure, as well.

The Wetting

Beavers make it possible to rehydrate the West. Their dams are speed bumps for floods, slowing the surge, spreading floodwaters across floodplains, and hydrating large swaths of valley bottoms. By storing rainwater behind their dams, beavers keep streams and rivers flowing farther into the season of California’s long, dry summer. As water slows down behind beaver ponds, it can more readily recharge groundwater, too. Some have suggested that restoring beavers across the mountain meadows of the Sierra Nevada could store as much water as 2 large new reservoirs. That would be cheaper…and more sustainable!

Monterey Bay’s Beavers

Beavers are in the Salinas River all the way down to the Highway One bridge. Those riverine beavers are bank burrowers…they don’t make dams in such big rivers, but they sure like to eat the willows. You’d have to go south to San Luis Obispo before you found another beaver family. And, travelling north you would have to get onto private land along Butano Creek in San Mateo County to encounter our beaver buddies. Sometimes that population makes a more public showing downstream in the Pescadero marsh, where one mysteriously died this past year. What about prime beaver habitat in the Carmel, Pajaro, and San Lorenzo rivers? When will beavers arrive in those locations? Corralitos, Soquel, and Scott creeks also offer promising beaver habitat. Perhaps one day we can find a way to offer beavers a place alongside humans in some of those rivers or streams. Help spread the word!

-this post originally published as part of the decades-long news source for the Monterey Bay and beyond at BrattonOnline.org Check it out! Subscribe!! DONATE. Support journalism, even grassroots journalism, maybe especially grassroots journalism.