Two different articles appeared today that both extoll the benefits of allowing beaver dams along stream to remain intact. The one that appeared in the San Francisco Chronicle, Why this underappreciated rodent is one of California’s best chances to fight climate change describes the science of how beavers keep the land moist and help prevent the ongoing drought, which in turn helps prevent the massive wildfires in the state. There are several organizations mentioned that are actively studying beavers and working to protect them.
The New York Times article focuses on a rancher in Nevada. His father, who passed away in 2014, used to wage war with beavers to the point of using dynamite to blow up their dams, believing they were responsible for flooding some parts of the property and drying out others. Now that his son has taken over, the beavers are experiencing a much more peaceful existence. The rain pattern in Nevada, like much of the west, has changed in recent years. The ponds that form behind beaver dams have become increasingly valuable during periods of drought. On this Nevada ranch, these ponds have provided a water source for cattle when no other was available. Additionally, the dams they build on the creeks on the property slow the rushing flow of water from the increasingly common torrential rains.
There are a growing number of scientists who are recognizing the many ways that Beavers can help fight climate change. One scientist mentioned in both articles is Emily Fairfax, assistant professor of environmental science and resource management at California State University Channel Islands. Her website provides a good overview of the many ways Beavers are providing answers to the climate related challenges we are facing today.
Of course, beavers can be destructive critters too which is why government efforts have traditionally been focused on managing beavers as a nuisance. This summer California took a major step in the opposite direction, approving $1.67 million in FY 2022-23 and $1.44 million FY 2023-24 to “revise beaver policies and guidelines in development of a comprehensive beaver management plan.”
One good resource to learn about beavers in California is this guide put out by the The Occidental Arts & Ecology Center (OAEC).