Tulalip models beaver relocation strategies for other tribes

A group of hushed wildlife biologists lined up against the concrete wall of a dry raceway at the Tulalip Tribes’ Bernie Kai Kai Gobin Fish Hatchery one morning in July, peering at a cage with a sheet hung over it, concealing a beaver inside. 

Tulalip wildlife biologist Dylan Collins and assistant wildlife biologist Jasmine Buries helped volunteers coax the animal from the wire cage into a canvas holding bag for examination. The beaver, deemed a female, was then released with a splash into a neighboring raceway—one prepared with knee-deep water, tree branches and a makeshift lodge for their stay. 

Nearly 400 beavers have found themselves temporarily housed at the hatchery since Tulalip started a relocation program in 2014. Tulalip staff recently shared the program’s inner workings with biologists from other tribes and tribal organizations during a three-day workshop sponsored by the Native American Fish and Wildlife Society (NAFWS). 

Tulalip wildlife biologist Dylan Collins prepares to unlatch a trap so that a captured beaver can undergo an intake assessment. 

The goal of Tulalip’s program is to move beavers from places where their dam-building compulsion causes problems—by flooding roads or inundating farmland, for example—to places where beaver ponds can help restore and sustain aquatic ecosystems critical to recovering salmon and building climate change resilience. 

“It’s good for the beavers, the environment, the watershed, the salmon—restoring those connections,” said Andrew Gobin, interim director of Tulalip’s Treaty Rights and Government Affairs department. 

Calvin Fisher, climate adaptation specialist for the Spokane Tribe of Indians, works to determine the gender of a beaver as part of the intake process at the Tulalip hatchery during a beaver relocation workshop in July. Tulalip assistant wildlife biologist Jasmine Buries, left, and wildlife technician Ahni Geogerian, center, assist while other workshop participants observe the procedure.

Through monitoring at its beaver relocation sites over the years, Tulalip has documented increases in surface water and ground water and decreases in water temperature where reintroduction of the animals is successful. Release sites are selected based on stream and valley width, water flow and gradient, and the types and amount of vegetation available in the vicinity, as well as the potential benefits of beaver activity for fish. 

“We’re trying to increase off-channel salmon habitat and riparian habitat,” Collins said. 

Workshop participants from across Washington and six other states said they plan to use lessons from Tulalip to establish or grow beaver relocation programs in their regions, to help restore wetlands, improve water retention and water quality, build wildfire resilience and protect against post-wildfire sediment runoff—while sparing the ecosystem engineers from lethal removal. 

“We don’t have the beaver activity that we should in our region,” said Calvin Fisher, climate adaptation specialist for the Spokane Tribe of Indians. “I’m here to learn how to get the beaver to help build natural wildfire resilience.”

Buries, center, teaches workshop participants how to set a spring-loaded beaver trap.

Tulalip’s home watersheds also still have room to grow in restoring beavers to the landscape. A University of Washington study published in 2018 suggested that of habitat suitable for beavers within the Skykomish River watershed, for example, about 73% was uninhabited by them. 

Each year, Tulalip’s wildlife program staff work to relocate more beavers May through October, when the hatchery raceways are not needed for fish. Through July, 11 of the animals had been relocated so far this year. 

When received at the hatchery, beavers are weighed, their sex is documented, and hair or other DNA samples may be taken. The beavers are held and monitored for one to three weeks to ensure they are healthy and that any mates or offspring are also captured from their origin sites. 

NAFWS workshop participants got a close look at three of the critters during intake and holding at the hatchery. They also had hands-on opportunities to learn how to set and retrieve traps, how to process the animals for holding, and how to assess potential release sites for suitability. 

Participants came from the Quileute Tribe, Blackfeet Nation, Cowlitz Indian Tribe, Kalispel Tribe, Klamath Tribes, Muscogee Creek Nation, Robinson Rancheria of Pomo Indians, Sherwood Valley Band of Pomo Indians, Sisseton-Wahpeton Oyate, Spokane Tribe of Indians and Yurok Tribe, as well as the nonprofits Hybrid Indigenous Stewardship and Indigenous Led. 

“It was great to have so much interest, and that now people are going to take this work to other states,” Buries said. 

Tulalip wildlife biologist Dylan Collins unveils a beaver, trapped for relocation, while discussing the tribe’s successful long-term beaver relocation program with NAFWS workshop participants. Photos and story by Kimberly Cauvel. 

Beavers relocated to improve salmon habitat