scholarly journals The Effects of Disturbance and Climate on Carbon Storage and the Exchanges of CO2 Water Vapor and Energy Exchange of Evergreen Coniferous Forests in the Pacific Northwest: Integration of Eddy Flux, Plant and Soil Measurements at a Cluster of Supersites. Final report

2011 ◽  
Author(s):  
Beverly E. Law ◽  
Christoph K. Thomas
Keyword(s):  
Water Vapor ◽  
Pacific Northwest ◽  
Carbon Storage ◽  
Energy Exchange ◽  
Coniferous Forests ◽  
Final Report ◽  
Eddy Flux ◽  
The Pacific ◽  
Soil Measurements

A Climatological Study of National Weat her Service Watches, Warnings, and Advisories and Landfalling Atmospheric Rivers in the Western U.S. 2006–2018

2021 ◽  
Author(s):  
Samuel M. Bartlett ◽  
Jason M. Cordeira
Keyword(s):  
Water Vapor ◽  
Pacific Northwest ◽  
Vapor Transport ◽  
Water Vapor Transport ◽  
Synoptic Scale ◽  
Flash Flooding ◽  
Atmospheric Rivers ◽  
The Pacific ◽  
Central Regions ◽  
Heavy Snow

AbstractAtmospheric rivers (ARs) are synoptic-scale phenomena associated with long, narrow corridors of enhanced low-level water vapor transport. Landfalling ARs may produce numerous beneficial (e.g. drought amelioration and watershed recharge) and hazardous (e.g. flash flooding and heavy snow) impacts that may require the National Weather Service (NWS) to issue watches, warnings, and advisories (WWAs) for hazardous weather. Prior research on WWAs and ARs in California found that 50–70% of days with flood-related and 60–80% of days with winter weather-related WWAs occurred on days with landfalling ARs in California. The present study further investigates this relationship for landfalling ARs and WWAs during the cool seasons of 2006–2018 across the entire western U.S. and considers additional dimensions of AR intensity and duration. Across the western U.S., regional maxima of 70–90% of days with WWAs issued for any hazard type were associated with landfalling ARs. In the Pacific Northwest and Central regions, flood-related and wind-related WWAs were also more frequently associated with more intense and longer duration ARs. While a large majority of days with WWAs were associated with landfalling ARs, not all landfalling ARs were necessarily associated with WWAs (i.e., not all ARs are hazardous). For example, regional maxima of only 50–70% of AR days were associated with WWAs issued for any hazard type. However, as landfalling AR intensity and duration increased, the association with a WWA and the “hazard footprint” of WWAs increased quasi-exponentially across the western U.S.

Effects of variable-density thinning on non-native understory plants in coniferous forests of the Pacific Northwest

2021 ◽  
Vol 502 ◽  
pp. 119699
Author(s):  
Yianna Bekris ◽  
Janet S. Prevéy ◽  
Leslie C. Brodie ◽  
Constance A. Harrington
Keyword(s):  
Pacific Northwest ◽  
Variable Density ◽  
Coniferous Forests ◽  
Understory Plants ◽  
The Pacific

Spatial distribution of ectomycorrhizal mats in coniferous forests of the Pacific Northwest, USA

1996 ◽  
Vol 180 (1) ◽  
pp. 147-158 ◽  
Author(s):  
Robert P. Griffiths ◽  
Gay A. Bradshaw ◽  
Barbara Marks ◽  
George W. Lienkaemper
Keyword(s):  
Spatial Distribution ◽  
Pacific Northwest ◽  
Coniferous Forests ◽  
The Pacific

Evergreen Coniferous Forests of the Pacific Northwest

Science ◽  
1979 ◽  
Vol 204 (4400) ◽  
pp. 1380-1386 ◽  
Author(s):  
R. H. Waring ◽  
J. F. Franklin
Keyword(s):  
Pacific Northwest ◽  
Coniferous Forests ◽  
The Pacific

scholarly journals Systems study for the use of geothermal energies in the Pacific Northwest. Final report, June 1, 1974--November 30, 1974

1974 ◽  
Author(s):  
G. Bodvarsson ◽  
L. Boersma ◽  
R. Couch ◽  
L. Davis ◽  
G. Reistad
Keyword(s):  
Pacific Northwest ◽  
Final Report ◽  
The Pacific

Tardigrades in the Canopy: Associations with Tree Vole Nests in Southwest Oregon

2020 ◽  
Author(s):  
John Villella ◽  
Jesse E. D. Miller ◽  
Alexander Young ◽  
Greg Carey ◽  
Andrew Emanuels ◽  
...  
Keyword(s):  
Pacific Northwest ◽  
Environmental Variables ◽  
Forest Canopy ◽  
Coniferous Forests ◽  
Forest Canopies ◽  
Species Numbers ◽  
The Pacific ◽  
Southwest Oregon ◽  
East West ◽  
Local Dispersal

Tardigrades live in many ecosystems, but local dispersal mechanisms and the influence of ecological gradients on tardigrade communities are not fully understood. Here we examine tardigrade communities in nests of the red tree vole (Arborimus longicaudus True), an arboreal mammal occupying the canopy of coniferous forests in western Oregon and northwestern California. We found 12 species of tardigrades from resin ducts sampled from 43 nests along a transect that spanned the east-west range of the tree vole in southern Oregon. Tardigrade occurrence was more likely in larger trees and species numbers were significantly higher in areas that received more precipitation. At sites where they occurred, tardigrades were more abundant in tree vole nests at greater heights within the forest canopy. Of the 12 species of tardigrades that were found, seven have not been previously reported in Oregon. Our results suggest that tardigrades in forest canopies in the Pacific Northwest are impacted by regional precipitation gradients as well as local environmental variables, and that nest building by small mammals may facilitate dispersal of tardigrades within the forest canopy.

Sign in / Sign up

Export Citation Format

Share Document