Interior Secretary Ryan Zinke has completed his long-awaited review of 21 national monuments and recommending a handful be reduced in size including the Cascade-Siskiyou National Monument in Oregon. Climate change was a main reason to expand the Cascade-Siskiyou, as researchers pressed the Obama administration to protect whole watersheds and reduce habitat fragmentation between the Cascade and Siskiyou mountains.
“It’s the only functional land bridge making that connection,” says Dominick DellaSala, president and chief scientist at the Geos Institute, who was involved with research on the monument’s role in climate resilience. He describes Cascade-Siskiyou, which encompasses a wide variety of habitats including oak woodlands, mixed conifer stands and chaparral, as the first monument to biodiversity. “Traditional uses like logging are land-use stressors that are incompatible with the monument’s biodiversity.”
In fact, researchers pushed for a far larger expansion than the one Obama enacted. “This is the last place any kind of monument reduction should be attempted,” DellaSala says. “Reducing the boundaries is not scientifically defensible.”