Threatened and Endangered Species
Joint Base Lewis-McChord area

An "endangered" species is in danger of extinction. A "threatened" species is likely to become endangered within the foreseeable future.

The Northern spotted owl is found only in the old-growth forests of the pacific northwest of North America. Spotted owls rely on these forests for breeding, foraging, nesting, roosting, temperature regulation and protection from predators. Although spotted owls are a long-lived species, reaching 16-17 years in the wild, they have a low rate of reproductive success. Mating for life, a pair of owls will typically produce one or two young every other year. When the owl reaches the perilous teenage “dispersal” stage, the young owls have to navigate through clearcuts, juvenile owls often fall victim to starvation or predation by ravens, hawks and even great horned owls.

In spite of the fact that, the Oregon Spotted Frog is native to the Puget Lowlands that stretch from the Canadian border to the Columbia River, loss of habitat, predation by non-native species, such as, the American bullfrog, and disease have decimated its numbers.

Athough endangered Marbeled Murrelets are not known to nest on Joint Base Lewis-McChord, they occur on Puget Sound in water adjacent to Joint Base Lewis-McChord.

Whereas, the Puget Sound steelhead spawn in the river as well as in Muck Creek. The decline in the steelhead population has been widespread, likely because of degraded habitat, man-made barriers, as well as, unfavorable ocean conditions.

In addition, the endangered Puget Sound Chinook salmon spawn in the Nisqually River. Efforts are being made to return Washington's weak wild-chinook-salmon populations back to sustainable levels.

The Northern Spotted Owl The Water Howellia The Oregon Spotted Frog The Puget Sound Steelhead The Puget Sound Chinook The Marbled Murrelet
  • The images are:
  • Northern Spotted Owl
  • Water Howellia
  • Oregon Spotted Frog
  • Puget Sound Steelhead
  • Puget Sound Chinook
  • Marbled Murrelet


PW Sharepoint