KTVZ

Douglas fir trees in Klamath Mountains are in ‘decline spiral,’ OSU research shows

CORVALLIS, Ore. (KTVZ) – Increases in mortality among Douglas firs in the Klamath Mountains are the result of multiple factors that have the iconic tree in a “decline spiral” in parts of the region, a ...
KOIN 6

Scientists say dry air rather than less rain will likely cause more stress for Douglas fir trees

PORTLAND, Ore. (KOIN) – Drier air caused by the changing climate is stressing Douglas fir trees, Oregon State University researchers say. The stress these trees experience from drier air is more than ...
Woodworking Network

Douglas-fir: Exceptionally strong and abundant

Douglas-fir (Pseudotsuga menziesii) is one of the premier species of the Western forests. Not only is the wood exceptionally strong for its weight, but the trees are abundant. Trees can grow over 250 ...
Science Daily

Douglas-fir in Klamath Mountains are in 'decline spiral'

Increases in mortality among Douglas-fir in the Klamath Mountains are the result of multiple factors that have the iconic tree in a 'decline spiral' in parts of the region. Increases in mortality ...
OPB

Why Ashland may need to step up prescribed burns to manage dying Douglas firs

courtesy of the City of Ashland In Southern Oregon, Douglas firs are dying. And climate change is making the problem worse with more severe droughts and hotter temperatures. About 20% of Douglas firs ...
Vancouver Sun on MSN

Group opposed to tree removal in Stanley Park fights to save 500-year-old Douglas fir

Stanley Park tree advocates are fighting to save a 500-year-old Douglas fir tree as part of the continuing removal of trees ...
The Columbian

Douglas fir in ‘decline spiral’ in Southwestern Oregon

Douglas fir is the most abundant tree species in the Pacific Northwest. It’s Oregon’s official state tree. And it’s arguably the region’s most important timber species. But like true firs, western ...
KING5

Doug's Defenders: Community activists rally to save Douglas Fir in Maple Leaf Neighborhood

SEATTLE — A video shared on social media captured the tense confrontation that took place on Saturday in a Maple Leaf neighborhood near 90th Street and Fifth Avenue. Community activists faced off with ...
WGAL

Christmas tree arrives at state capitol for holiday celebrations

PRICES, AND OVERALL INFLATION. YEAH, WELL, A NEW SIGN OF CHRISTMAS IS AT THE STATE CAPITOL. CREWS WITH THE DEPARTMENT OF GENERAL SERVICES OR DGS, CAREFULLY CARRIED A 25 FOOT DOUGLAS FIR THIS MORNING ...
komonews

Crews begin cutting down Douglas fir tree in Seattle's Maple Leaf neighborhood

Another wave of heavy rain smacks western Washington this week, coupled with strong winds adding concern for potential power outages. by KOMO News Staff SEATTLE — Crews began cutting down a large ...
JSTOR Daily

Topology of tree–mycorrhizal fungus interaction networks in xeric and mesic Douglas-fir forests

1. From the phytocentric perspective, a mycorrhizal network (MN) is formed when the roots of two or more plants are colonized by the same fungal genet. MNs can be modelled as interaction networks with ...