The Beaver
Effect
Hometown Heroes
“They create habitats which support all other wildlife in the system…
We would not have the landscape that we have if it were not for beaver.”
​
Carl Scheeler, wildlife program manager for the Confederated Tribes of the Umatilla Indian Reservation, where the CTUIR’s program Umatilla Vision protects First Foods through river restoration and the help of beavers.

Insular Blue Butterfly
Coho Salmon
Greater Sandhill Crane
Pallid Bat
Ringtail
Fisher
Short-eared Owl
Rough Popcornflower
Northwestern
Pond Turtle
Lost River
Suckerfish
With the power to transform landscapes, beavers are biodiversity builders. Biodiversity, when there are many diverse species in a landscape, is a web of life vital to human health and well-being. Clean drinking water, secure food systems, and medicine are just a few of the benefits of protecting the species around us. Learn how beavers support many species from butterflies to bats!
Sierra Nevada Red Foxes

Cope's Giant Salamander


Cook's Desert Parsley

Great Spangled Fritillary
Stream Violets grow in mountain meadows of the Pacific Northwest and are this butterflies’ favorite food! Beavers help sustain meadows and expand the water table of a landscape allowing meadow flowers to bloom with gusto. This petal-powered arrangement provides habitat for the beautiful butterfly to thrive.
Western Painted Turtle

These colorful reptiles live in slow-moving streams, and ponds. They need patches of sun for nesting, logs for basking, and vegetation for munching. Beavers aid turtles in 3 primary ways: 1) Creating slower areas of streams through building dams, 2) Bringing down logs for basking and 3) Increasing the amount of diverse vegetation surrounding streams.
Greater Sandhill Crane
Majestic greater sandhill cranes need access to wetland and dry meadow areas for foraging and nesting. Fortunately, beavers do a handful of things really well, and that includes 1) Increasing the size of wetland areas, and 2) Supporting water quality through the filtering effects of dams and beaver ponds (that help sediments and trace elements sink).

Ringtails

Have you ever spotted a mysterious ringtail? Odds are… you haven’t – they’re quite elusive! They love using logs for dens in low-elevation forests or riparian areas and eat small berries and insects. While they face the constant threat of habitat loss and fragmentation beavers help by providing fallen log hideaways and accessible tree snags, which provides a supply of delicious bugs.

Coho Salmon
While climate change, commercial logging, and road building near rivers can get in the way of the cool water temperatures needed by salmon, beavers can lend a paw.
By building beaver dams, overall water storage increases and this can lower the stream’s temperature. Fortunately, salmon have amazing jumping skills to easily hop over dams and these structures even provide protection for salmonid spawn.
Pallid Bat
Big ears, big smiles, big love of eating insects – pallid bats live large, in open habitat such as grassland and where grasslands transition to forests. In contrast to many other types of bats, they hunt for their daily bug grub on the ground or on leaves. After
a day of flying, they drink at the nearest healthy open water source. When beavers spread water, trees that aren’t adapted die, forming snags with a buffet of insects. Beavers also maintain clean water sources, helping pallid bats stay healthy and hydrated.

And that's just one branch in the dam, as a beaver might say.
Timelapse video of a beaver pond supporting a variety of creatures over the course of a year.