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Keyword: Pacific Northwest

Fire enhances the complexity of forest structure in alpine treeline ecotones

Publications Posted on: October 05, 2018
Alpine treelines are expected to move upward in a warming climate, but downward in response to increases in wildfire. We studied the effects of fire on vegetation structure and composition across four alpine treeline ecotones extending from Abies lasiocarpa/Picea engelmannii forests at lower elevations, through Pinus albicaulis/Larix lyallii parkland, to alpine tundra.

Northwest Forest Plan—the first 10 years (1994-2003): status and trend of late-successional and old-growth forest.

Publications Posted on: August 01, 2018
We monitored the status and trend of late-successional and old-growth forest (older forest) on 24 million ac of land managed by the Forest Service, Bureau of Land Management, and National Park Service in the Northwest Forest Plan (the Plan) area between 1994 and 2003. We developed baseline maps from satellite imagery of older forest conditions at the start of the Plan.

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Media Gallery Posted on: May 11, 2017
Native plant community restoration is a vital tool for preserving and maintaining diverse ecosystems that support wildlife and provide ecosystem functions essential to healthy human communities. The success of restoration projects depends on using plant materials that are adapted to local environmental and climatic conditions. Seed transfer guidelines and seed zones help land managers in selecting the right seed for the right place. To learn more about this see Science Spotlight: The Right Seed At The Right Place

The Right Seed At The Right Place

Science Spotlights Posted on: May 11, 2017
Native plant community restoration is a vital tool for preserving and maintaining diverse ecosystems that support wildlife and provide ecosystem functions essential to healthy human communities. The success of restoration projects depends on using plant materials that are adapted to local environmental and climatic conditions. Seed transfer guidelines and seed zones help land managers in selecting the right seed for the right place.

Conservation of native Pacific trout diversity in Western North America

Publications Posted on: June 29, 2016
Pacific trout Oncorhynchus spp. in western North America are strongly valued in ecological, socioeconomic, and cultural views, and have been the subject of substantial research and conservation efforts. Despite this, the understanding of their evolutionary histories, overall diversity, and challenges to their conservation is incomplete.

Predicting landscape sensitivity to present and future floods in the Pacific Northwest, USA

Publications Posted on: February 24, 2016
Floods are the most frequent natural disaster, causing more loss of life and property than any other in the USA. Floods also strongly influence the structure and function of watersheds, stream channels, and aquatic ecosystems.

Drought-triggered western spruce budworm outbreaks in the Interior Pacific Northwest: A multi-century dendrochronological record

Publications Posted on: October 07, 2014
Douglas-fir forests in the interior Pacific Northwest are subject to sporadic outbreaks of the western spruce budworm, a species widely recognized as the most destructive defoliator in western North America. Outbreaks of the western spruce budworm often occur synchronously over broad regions and lead to widespread loss of leaf area and decrease in growth rates in affected stands.

Spatiotemporal variation in resource selection: Insights from the American marten (Martes Americana)

Publications Posted on: September 30, 2014
Behavioral and genetic adaptations to spatiotemporal variation in habitat conditions allow species to maximize their biogeographic range and persist over time in dynamic environments. An understanding of these local adaptations can be used to guide management and conservation of populations over broad extents encompassing diverse habitats.

Climate change effects on vegetation in the Pacific Northwest: a review and synthesis of the scientific literature and simulation model projections

Publications Posted on: September 15, 2014
The purpose of this study was to review scientifi c knowledge and model projections on vegetation vulnerability to climatic and other environmental changes in the Pacifi c Northwest, with emphasis on fi ve major biome types: subalpine forests and alpine meadows, maritime coniferous forests, dry coniferous forests, savannas and woodlands (oak and juniper), and interior shrub-steppe.

Temporal carbon dynamics of forests in Washington, US: implications for ecological theory and carbon management

Publications Posted on: May 16, 2014
We quantified carbon (C) dynamics of forests in Washington, US using theoretical models of C dynamics as a function of forest age. We fit empirical models to chronosequences of forest inventory data at two scales: a coarse-scale ecosystem classification (ecosections) and forest types (potential vegetation) within ecosections.

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