Forest and Rangeland Ecosystem Science Center (FRESC)

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Filter Total Items: 121
Date published: February 16, 2018

Modulators of Mercury Risk to Wildlife and Humans in the Context of Rapid Global Change

USGS author Collin Eagles-Smith led an invited synthesis paper as part of the plenary effort for the 13th International Conference on Mercury as a Global Contaminant.

Date published: February 16, 2018

Stream Mercury Export in Response to Contemporary Timber Harvesting Methods

Timber harvest is a significant driver of mercury releases in some parts of the world. Yet, the impact of forest harvest on mercury mobilization has not been directly studied in the Pacific Northwest despite being an important timber producing region that also receives high atmospheric mercury deposition.

Date published: February 12, 2018

Modulators of Mercury Risk to Wildlife and Humans in the Context of Rapid Global Change

USGS author Collin Eagles-Smith led an invited synthesis paper as part of the plenary effort for the 13th International Conference on Mercury as a Global Contaminant.

Date published: February 12, 2018

Stream Mercury Export in Response to Contemporary Timber Harvesting Methods

Timber harvest is a significant driver of mercury releases in some parts of the world.

Date published: February 9, 2018

Survival and Movement of Stream Amphibians in Response to Timber Harvest

USGS scientists Nathan Chelgren and Michael Adams analyzed demographic rates – such as survival, movement, and growth – of aquatic life stages of coastal tailed frogs and coastal giant salamanders in a before-after timber harvest study in the Coast Range of western Oregon.

Date published: February 5, 2018

Survival and Movement of Stream Amphibians in Response to Timber Harvest

The effects of timber harvest on headwater stream amphibians have been studied extensively, but with conflicting or ambiguous results.

Date published: February 2, 2018

Food Web Model Informs River Restoration on the Barkley Bear Segment, Methow River

USGS, U.S. Forest Service, and Bureau of Reclamation scientists tested a biological-based food web model, the Aquatic Trophic Productivity (ATP) model, to inform the design a restoration project to improve conditions for declining numbers of juvenile Chinook salmon and steelhead in the Methow River, north-central Washington.

Date published: February 2, 2018

Origins of Lead in Populations of Wild Raptors

Many wildlife species are threatened by poisoning from anthropogenically derived lead, and routes of lead exposure are unclear.

Date published: February 2, 2018

DOI Remote Sensing Activities 2017 Includes FRESC Research on Lidar to Study Forest Habitat

The Department of the Interior has released a report of the DOI Remote Sensing Activities for 2017, which includes a summary of research that uses Lidar to study forest canopy. 

Date published: January 29, 2018

Food Web Model Informs River Restoration on the Barkley Bear Segment, Methow River

In planning restoration actions in rivers and streams, managers have typically used physical-based models.

Date published: January 5, 2018

Effects of Drought on Golden Eagles: Spatial Patterns in Occupancy and Reproduction

USGS scientists and collaborators investigated spatial patterns in occupancy and breeding success of golden eagles in the Altamont Pass Wind Resource Area, California and surrounding landscapes from 2014 – 2016, an exceptional drought period.

Date published: December 12, 2017

Saving Salamanders: Vital to Ecosystem Health

Amphibians—the big-eyed, swimming-crawling-jumping-climbing group of water and land animals that includes frogs, toads, salamanders and worm-like caecilians—are the world’s most endangered vertebrates.