Forest and Rangeland Ecosystem Science Center (FRESC)

News

Filter Total Items: 169
Date published: December 12, 2019

Weed-Suppressive Bacteria have no Effect on Exotic or Native Plants in Sagebrush Steppe

Approaches and techniques for controlling exotic annual grasses are a high priority in rangelands including sagebrush steppe. 

Date published: December 11, 2019

Occupancy Patterns in a Reintroduced Fisher Population during Reestablishment

From 2008-10, researchers translocated 90 fishers from British Columbia to Washington’s Olympic Peninsula. 

Date published: December 11, 2019

Assessing the Relative Importance of Factors at Multiple Spatial Scales Affecting Terrestrial and Aquatic Wildlife

The ability to understand a given ecological process depends on the scale of observation.

Date published: December 11, 2019

New LiDAR Metrics Help Identify Habitat for the Northern Spotted Owl

The development of metrics derived from LiDAR to study forest structure has advanced wildlife-habitat modeling. 

Date published: December 10, 2019

Estimating Population Size with Imperfect Detection Using a Parametric Bootstrap

Methods exist for estimating the size of a population of imperfectly detected individuals, yet problems arise when the detection probability and the observed count of individuals are both small. 

Date published: December 10, 2019

Examining Soil’s Role in Tracing Nutrients From Salmon into Riparian Trees

Pacific salmon transport large amounts of marine nutrients to freshwater and forest ecosystems when they migrate from the ocean, spawn, and die. 

Date published: November 27, 2019

Weed-Suppressive Bacteria Fail to Control Bromus Tectorum

The exotic winter annual grass Bromus tectorum (downy brome or cheatgrass) infests large expanses of western rangelands.

Date published: November 27, 2019

Post-fire Aspen Regeneration Varies in Response to Winter Precipitation

Aspen is generally considered an early-seral species that benefits from fire, but increases in fire activity across the western United States could affect aspen in unpredictable ways.

Date published: November 27, 2019

Adapting a Model to Estimate Gross Primary Production of the Sagebrush Ecosystem

The sagebrush-steppe in western North America is a spatially heterogeneous ecosystem shaped by complex dynamics, making modeling characteristics such as ecosystem primary production extremely difficult.

Date published: November 27, 2019

Combining Remotely Sensed and Field Data to Investigate Pre- and Post-fire Vegetation Changes

Understanding the factors that influence vegetation responses to disturbance is important because vegetation is the foundation of food resources, wildlife habitat, and ecosystem properties and processes.

Date published: November 27, 2019

Modeling Control of Common Carp in Malheur Lake

The introduction of Common Carp into North American waters has led to widespread alteration of aquatic ecosystems. Researchers developed a population dynamics model (CarpMOD) to explore control measures that eradicate carp at multiple life stages (embryos, juveniles, and adults).

Date published: November 6, 2019

Status of Pacific Martens on the Olympic Peninsula

Pacific martens remain common in montane regions of Pacific coast U.S. states, yet their distribution and status on the Olympic Peninsula, Washington, is uncertain.