Residual canopy cover provides buffering of near-surface temperatures, but benefits are limited under extreme conditions In response to recent extreme heat events, such as the 2021 heat dome over the…

In the last 10 years, David Herasimtschuk has photographed forests across the Pacific Northwest, documenting the inhabitants of these last remaining old-growth ecosystems. From salamanders and salmon…

Virtually all ecosystem and ecological processes are being affected by changing climate. Ecosystem responses differ by region or ecosystem type, and interact with other past and ongoing human…

Regional models project declining dry-season relative humidity in the future. Collectively, these findings indicate that future climate conditions will increase vertical and downslope moisture loss…

Old-growth forests, such as those found within the HJ Andrews Experimental Forest Long-Term Ecological Research site, may offer temperature refugia for animals in a warming climate.

Under certain conditions, cold air can pool in valleys making the air colder at lower elevations than at higher elevations, creating what’s called a temperature inversion. Nighttime inversions were…

Dwarf mistletoe’s quaint name belies its severity. The native parasitic plant commonly infects western hemlock trees in western Oregon and Washington via projectile seeds that land on branches and…

Get a stunning bird's-eye view of the forest from above the trees, and through the trees, and find out what scientists are learning about how birds may be using the old-growth forest to beat the heat.

An international research team conducted the first continental-scale study of carbon flows into and out of streams across six major climatic zones. Scientists analyzed the balance between…

Old forests that contain large trees and a diversity of tree sizes and species may offer refuge to some types of birds facing threats in a warming climate. In a paper published in Diversity and…