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Methods to Predict Beaver Dam Occurrence in Coastal Oregon (Petro et al, 2018)

2022-06-28T13:41:01+00:00

Pools provided by beaver (Castor canadensis) contribute to critical habitat requirements of salmonids in fluvial systems of the Pacific Northwest, therefore more land managers are interested in managing watersheds that include beavers or engaging in beaver-related restoration projects. We evaluated the utility of applying an existing beaver habitat suitability model to better understand beaver dam site characteristics in coastal Oregon, identify optimum dam site locations, and guide future beaver-related restoration efforts. We used a combination of t-tests, Wilcoxon rank sum tests, and a stepwise discriminant function analysis to examine stream habitat associations with field data collected at known and [...]

Methods to Predict Beaver Dam Occurrence in Coastal Oregon (Petro et al, 2018)2022-06-28T13:41:01+00:00

Landslides Drive Variability in Valley Width & Increase Connectivity of Salmon Habitat in the Oregon Coast Range (Beeson et al, 2018)

2022-06-28T13:42:29+00:00

Declines in populations of Pacific salmon have prompted extensive and costly restoration efforts, yet many populations are still in peril. An improved understanding of landscape-scale controls on salmon habitat should help focus restoration resources on areas with the greatest potential to host productive habitat. We investigate the contribution of deep-seated landslides (DSLs) to Coho Salmon habitat by comparing the quantity and connectivity of potential seasonal habitat observed in five streams with extensive DSLs to five lacking significant landsliding. Further, we measure valley width in these streams and relate it to connectivity. We show that median fractions of stream length [...]

Landslides Drive Variability in Valley Width & Increase Connectivity of Salmon Habitat in the Oregon Coast Range (Beeson et al, 2018)2022-06-28T13:42:29+00:00

Modeling Potential for Beaver Habitat to Inform Restoration & Climate Change Adaptation (Dittbrenner et al, 2018)

2022-06-28T13:44:06+00:00

Through their dam-building activities and subsequent water storage, beaver have the potential to restore riparian ecosystems and offset some of the predicted effects of climate change by modulating streamflow. Thus, it is not surprising that reintroducing beaver to watersheds from which they have been extirpated is an often-used restoration and climate-adaptation strategy. Identifying sites for reintroduction, however, requires detailed information about habitat factors—information that is not often available at broad spatial scales. Here we explore the potential for beaver relocation throughout the Snohomish River Basin in Washington, USA with a model that identifies some of the basic building blocks [...]

Modeling Potential for Beaver Habitat to Inform Restoration & Climate Change Adaptation (Dittbrenner et al, 2018)2022-06-28T13:44:06+00:00

Strategic Action Plan for Coho Salmon Recovery on the Elk River (Wild Salmon Center, 2017)

2022-07-13T23:11:16+00:00

The Elk River is comprised of dynamic rivers, productive agricultural lands and the largest estuary completely in Oregon. The Elk Coho Partnership, composed of local NGOs, state and federal agencies, tribes and industrial partners, came together to develop the Elk River Strategic Action Plan (SAP) for Coho Salmon recovery. This plan outlines the long-term strategies that need to be enacted over the next 25 years, in order to sustain this coho salmon (Oncorhynchus kisutch) population into the future. With a focus on supporting working agricultural lands, while at the same time increasing and improving ecological conditions for coho salmon, [...]

Strategic Action Plan for Coho Salmon Recovery on the Elk River (Wild Salmon Center, 2017)2022-07-13T23:11:16+00:00

Strategic Action Plan for Coho Salmon Recovery on the Siuslaw River (Wild Salmon Center, 2017)

2022-06-28T13:40:09+00:00

The Siuslaw River once supported one of the largest runs of wild coho salmon (Oncorhynchus kisutch) along the Oregon coast. Over 150 years of resource use and development in the Siuslaw River watershed have contributed to a long and steady decline in the population. Climate change and an uncertain trend in watershed health now raise concern among managers that the Siuslaw population – like other populations on the Oregon coast – may not remain viable in the decades to come. This plan represents the culmination of a three-year collaboration among local stakeholders to identify and locate restoration projects that will [...]

Strategic Action Plan for Coho Salmon Recovery on the Siuslaw River (Wild Salmon Center, 2017)2022-06-28T13:40:09+00:00

Alteration of Stream Temperature by Natural & Artificial Beaver Dams (Weber et al, 2017)

2022-06-28T13:40:24+00:00

Beaver are an integral component of hydrologic, geomorphic, and biotic processes within North American stream systems, and their propensity to build dams alters stream and riparian structure and function to the benefit of many aquatic and terrestrial species. Recognizing this, beaver relocation efforts and/or application of structures designed to mimic the function of beaver dams are increasingly being utilized as effective and cost-efficient stream and riparian restoration approaches. Despite these verities, the notion that beaver dams negatively impact stream habitat remains common, specifically the assumption that beaver dams increase stream temperatures during summer to the detriment of sensitive biota [...]

Alteration of Stream Temperature by Natural & Artificial Beaver Dams (Weber et al, 2017)2022-06-28T13:40:24+00:00

Effects of Intertidal Water Crossing Structures on Estuarine Fish & Habitat (Munsch et al, 2017)

2022-06-28T13:42:49+00:00

For hundreds of years, people have built water crossing structures to enable the transportation of people, livestock, vehicles, and materials across rivers and other bodies of water. These structures have often created barriers to fish passage, an issue which has recently drawn intense scrutiny due to concerns over impacts to anadromous fish. While much work has focused on the impacts of freshwater crossing structures, intertidal structures have received less attention. This may be due to the importance of passage for adult anadromous fish in freshwater, and that bidirectional flows in intertidal environments complicate interpretation of structures as barriers. Intertidal [...]

Effects of Intertidal Water Crossing Structures on Estuarine Fish & Habitat (Munsch et al, 2017)2022-06-28T13:42:49+00:00

Legal Ecotones: A Riparian Analysis of Riparian Policy Protection in the Oregon Coast Range (Boisjolie et al, 2017)

2022-06-28T13:44:58+00:00

Waterways of the USA are protected under the public trust doctrine, placing responsibility on the state to safeguard public resources for the benefit of current and future generations. This responsibility has led to the development of management standards for lands adjacent to streams. In the state of Oregon, policy protection for riparian areas varies by ownership (e.g., federal, state, or private), land use (e.g., forest, agriculture, rural residential, or urban) and stream attributes, creating varying standards for riparian land-management practices along the stream corridor. Here, we compare state and federal riparian landmanagement standards in four major policies that apply [...]

Legal Ecotones: A Riparian Analysis of Riparian Policy Protection in the Oregon Coast Range (Boisjolie et al, 2017)2022-06-28T13:44:58+00:00

Western Oregon State Forests Habitat Conservation Planning Assistance Grant Project (Bofattch, 2017)

2022-06-28T13:45:04+00:00

In the Pacific Northwest, salmon populations were historically more abundant than they are today. As a result, many populations have been the focus of habitat restoration efforts. A vital role in these restoration efforts is played by private landowners, who collectively manage one-third of the forestlands in Oregon. Crucial habitat for some salmon populations occurs predominately on lands that are privately owned. VIEW PDF

Western Oregon State Forests Habitat Conservation Planning Assistance Grant Project (Bofattch, 2017)2022-06-28T13:45:04+00:00

Incorporating Food Web Dynamics into Ecological Restoration for River Ecosystems (Bellmore et al, 2017)

2022-06-28T14:02:31+00:00

Restoration is frequently aimed at the recovery of target species, but also influences the larger food web in which these species participate. Effects of restoration on this broader network of organisms can influence target species both directly and indirectly via changes in energy flow through food webs. To help incorporate these complexities into river restoration planning, we constructed a model that links river food web dynamics to in-stream physical habitat and riparian vegetation conditions. We present an application of the model to the Methow River, Washington, USA, a location of on-going restoration aimed at recovering salmon. Three restoration strategies [...]

Incorporating Food Web Dynamics into Ecological Restoration for River Ecosystems (Bellmore et al, 2017)2022-06-28T14:02:31+00:00

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