Density Management and Riparian Buffer Study
Investigation of aquatic-dependent vertebrates within and along headwater streams in managed
forests of western Oregon. Read more

Climate change and salmon in the Oregon Coast Range
Sea level rise will inundate estuaries changing the amount and location of critical estuarine habitats for salmon. Changes in stream flow and water temperature will impact stream habitat. Read more

Mount St. Helens Research Photo by Charlie Crisafulli
On May 18, 1980, after weeks of tremors, Mount St. Helens erupted spectacularly and profoundly changed
a vast area surrounding the volcano. In the 30 years since the catastrophic eruption, scientists with the Land
and Watershed Management Program, along with their colleagues, have used the volcano as a living
laboratory for ecological research. Read more

Salmon Recovery in the Columbia River Basin
To help restore wild salmon and steelhead runs, two committees of independent scientists provide scientific oversight to the nation’s largest freshwater ecological restoration program. Read more

Splash Dams and Log Drives
Historical ecologists use clues from the past to piece together what an area might have looked like, what management practices took place, and to what degree those practices still influence current conditions.
Splash damming and log driving were among the earliest reported management disturbances in rivers
of the Pacific Northwest. Read more

Hyporheic Zones and Mountain Streams
Exploring the factors that control stream-groundwater interactions and create hyporheic zones in
mountain stream networks and quantifying their effects on stream ecosystem processes. Read more

Debris Flows
In many mountainous regions, debris flows can be an important factor determining stream-habitat
conditions. Human activities can influence the frequency, magnitude, and content of debris flows.
Thus, understanding about debris-flow processes and effects are important to stream conservation
and sustainable forest management. Read more

Aquatic/Riparian Stream Network Modeling
Integrating riparian zone mapping with state-and-transition models to project the response of
riparian zones, stream channels and salmon habitat to plant succession, natural disturbance and
land-use activities. Read more

Small, Forested Wetlands Photo by Alex Foster
Starting in 2004, we examined wetland features along headwater streams as part of a larger study
focused on the effects of forest management in headwater riparian areas. We were interested in the
frequency, surface area, and other attributes associated with the many small, cryptic wetlands observed
along the headwater streams of the forestry study. Read more

2012 Year of the Lizard
State of the Lizard (Olson 2012) highlights the current threats to lizards, and the need for conservation, research, and education. Read more
Great Basin Collared Lizard (Crotaphytus bicinctores) juvenile, photo copyright Larry LC Jones.