The Elwha River – located on the Olympic Peninsula in Washington - is home to an iconic dam removal and ecosystem restoration project. The Elwha offers a unique setting to explore the ecosystem level effects of dam removal and river restoration because of its prominence, such as large sediment volume, several salmon populations, and pristine wilderness.
Scientists from five USGS centers are playing a central role alongside Tribal, federal and state agency, and academic partners in interdisciplinary studies of the Elwha, with the aim of developing a long-term, multigenerational effort to understand how the ecosystem changes following dam removal.
Current Study: Monitoring Wildlife Responses to River Restoration
Scientists at the Forest and Rangeland Ecosystem Science Center are collaborating with the Lower Elwha Klallam Tribe to understand terrestrial wildlife restoration and response to dam removal. This work includes camera-based wildlife monitoring, studies of small mammal distribution on revegetating reservoir beds, and studies of elk and deer browse in revegetation sites. Ultimately, documenting wildlife recovery, use of, and interaction with the restoration area will provide valuable information on the impacts of dam removal for managers and researchers planning future river restoration projects.
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Small mammals and ungulates respond to and interact with revegetation processes following dam removal
Terrestrial fauna are agents and endpoints in ecosystem restoration following dam removal
Occupancy patterns of mammals and lentic amphibians in the Elwha River riparian zone before dam removal
Space and habitat use by black bears in the Elwha valley prior to dam removal
- Overview
The Elwha River – located on the Olympic Peninsula in Washington - is home to an iconic dam removal and ecosystem restoration project. The Elwha offers a unique setting to explore the ecosystem level effects of dam removal and river restoration because of its prominence, such as large sediment volume, several salmon populations, and pristine wilderness.
Scientists from five USGS centers are playing a central role alongside Tribal, federal and state agency, and academic partners in interdisciplinary studies of the Elwha, with the aim of developing a long-term, multigenerational effort to understand how the ecosystem changes following dam removal.
Current Study: Monitoring Wildlife Responses to River Restoration
Scientists at the Forest and Rangeland Ecosystem Science Center are collaborating with the Lower Elwha Klallam Tribe to understand terrestrial wildlife restoration and response to dam removal. This work includes camera-based wildlife monitoring, studies of small mammal distribution on revegetating reservoir beds, and studies of elk and deer browse in revegetation sites. Ultimately, documenting wildlife recovery, use of, and interaction with the restoration area will provide valuable information on the impacts of dam removal for managers and researchers planning future river restoration projects.
Sources/Usage: Public Domain. Visit Media to see details.Camera-based wildlife monitoring is a non-invasive method for documenting wildlife recovery and use of the newly revegetated reservoir beds along the Elwha River. - Publications
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Small mammals and ungulates respond to and interact with revegetation processes following dam removal
Terrestrial wildlife communities are often overlooked as components of ecosystem restoration following dam removal. However, a diverse mammalian fauna colonizes habitat on dewatered reservoirs and may influence restoration processes. We studied mammalian colonization and ungulate herbivory from 2014 to 2018 following the removal of two large dams on the Elwha River in Washington, USA. SpecificallyTerrestrial fauna are agents and endpoints in ecosystem restoration following dam removal
Dam removal is an effective and increasingly applied river restoration strategy. This has led to heightened calls for research and monitoring aimed at understanding physical and ecological outcomes following dam removal. While such research programs have increased, roles of terrestrial fauna in the restoration process remain poorly understood, although wildlife and invertebrate fauna are key compoOccupancy patterns of mammals and lentic amphibians in the Elwha River riparian zone before dam removal
The downstream transport of sediments and organics and upstream migration of anadromous fishes are key ecological processes in unregulated riverine ecosystems of the North Pacific coast, but their influence on wildlife habitats and populations is poorly documented. Removal of two large hydroelectric dams in Washington’s Elwha Valley provides an unprecedented opportunity to study long-term responseSpace and habitat use by black bears in the Elwha valley prior to dam removal
Dam removal and subsequent restoration of salmon to the Elwha River is expected to cause a shift in nutrient dynamics within the watershed. To document how this influx of nutrients and energy may affect black bear (Ursus americanus) ecology, we used radio-telemetry to record movements of 11 male and two female black bears in the Elwha Valley from 2002-06. Our objective was to collect baseline data - News