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Keyword: refugia

Influence of fire refugia spatial pattern on post-fire forest recovery in Oregon’s Blue Mountains

Publications Posted on: August 06, 2019
Context: Fire regimes in many dry forests of western North America are substantially different from historical conditions, and there is concern about the ability of these forests to recover following severe wildfire. Fire refugia, unburned or low-severity burned patches where trees survived fire, may serve as essential propagule sources that enable forest regeneration.

Contributions of fire refugia to resilient ponderosa pine and dry mixed-conifer forest landscapes

Publications Posted on: August 06, 2019
Altered fire regimes can drive major and enduring compositional shifts or losses of forest ecosystems. In western North America, ponderosa pine and dry mixed-conifer forest types appear increasingly vulnerable to uncharacteristically extensive, high-severity wildfire.

Composition and structure of forest fire refugia: What are the ecosystem legacies across burned landscapes?

Publications Posted on: August 17, 2018
Locations within forest fires that remain unburned or burn at low severity—known as fire refugia - are important components of contemporary burn mosaics, but their composition and structure at regional scales are poorly understood.

Mountain Streams Offer Climate Refuge

FS News Posted on: April 04, 2016
A new study, led by Dr. Daniel Isaak, offers hope for cold-water species in the face of climate change. The study, published today in the Proceedings of the National Academy of Sciences, addresses a longstanding paradox between predictions of widespread extinctions of cold-water species and a general lack of evidence for those extinctions despite decades of recent climate change.

Climate shield cold-water refuge streams for preserving native trout

Documents and Media Posted on: March 18, 2015
Crowd-sourced biological datasets contributed by multiple agencies were coupled with high-resolution NorWeST stream temperature scenarios to delineate invasion resistant, climate refuge streams across >450,000 stream kilometers in the northwestern U.S. for two native trout species of concern — Bull Trout and Cutthroat Trout.Document Type: Briefing Papers

Climate shield cold-water refuge streams for native trout

Projects Posted on: March 18, 2015
The Climate Shield website hosts geospatial data and related information on specific locations of cold-water refuge streams for native cutthroat trout and bull trout across the American West. Forecasts about the locations of refugia could enable the protection of key watersheds, be used to rally support among multiple stakeholders, and provide a foundation for planning climate-smart conservation networks that improve the odds of preserving native trout populations through the 21st century.

The cold-water climate shield: Delineating refugia for preserving salmonid fishes through the 21st century

Publications Posted on: March 03, 2015
The distribution and future fate of ectothermic organisms in a warming world will be dictated by thermalscapes across landscapes. That is particularly true for stream fishes and cold-water species like trout, salmon, and char that are already constrained to high elevations and latitudes.