A5063807184- Fish Ecology and Management Studies
- Hydrology and Watershed Management Studies
- Ecology and biodiversity studies
- Soil and Water Nutrient Dynamics
- Hydrology and Sediment Transport Processes
- Aquatic Invertebrate Ecology and Behavior
- Peatlands and Wetlands Ecology
- Marine and fisheries research
- Water Quality and Resources Studies
- Wildlife Ecology and Conservation
- Aquatic and Environmental Studies
- Environmental DNA in Biodiversity Studies
- Environmental Conservation and Management
OAI Consulting (United States)
2018-2023
University of Colorado Boulder
2023
NOAA National Marine Fisheries Service Northwest Fisheries Science Center
2021-2022
National Oceanic and Atmospheric Administration
2021
NOAA National Marine Fisheries Service
2018-2021
Abstract A pressing question for managing recovery of depressed or declining species is: Can habitat restoration increase resilience to climate change? We addressed this salmon populations with varying life histories, where is defined as maintaining increasing population size despite change effects. Previous studies indicate that several interrelated mechanisms may influence change, including improving either capacity productivity, and ameliorating effects on flood flow, low stream...
Coarse particulate organic matter (CPOM; 1–100 mm in diameter, excluding small wood) stored streams provides an important energy source for aquatic ecosystems, and CPOM transport downstream subsidies is a pathway watershed carbon export. However, we lack understanding of the magnitude processes influencing storage headwater streams. We assessed how geomorphic complexity hydrologic regime influence Colorado Front Range, USA. compared during snowmelt stream reach with high retentive feature...
An investigation into the causes of species decline should include examination habitats important for multiple life stages. Integrating habitat impacts across stages with life-cycle models (LCMs) can reveal impairments inhibiting recovery and help guide restoration efforts. As part final elements Habitat Restoration Planning model (HARP; Beechie et al. this volume), we developed LCMs four populations three anadromous salmonids ( Oncorhynchus kisutch , O . tshawytscha mykiss ), ran diagnostic...
Abstract Riparian forests attenuate solar radiation, thereby mediating an important component of the thermal budget streams. Here, we investigate relationship between riparian degradation, stream temperature, and channel width in Chehalis River Basin, Washington State. We used lidar data to measure canopy opening angle, angle formed center trees on both banks; assumed historical tree heights calculated change relative conditions. then developed empirical water temperature using existing...
Stream temperatures in the Pacific Northwest are projected to increase with climate change, placing additional stress on cold-water salmonids. We modeled potential impact of increased stream four anadromous salmonid populations Chehalis River Basin (spring-run and fall-run Chinook salmon Oncorhynchus tshawytscha, coho O. kisutch, steelhead mykiss), as well for floodplain reconnection shade restoration offset effects future temperature increases. In Basin, peak summer predicted by much 3°C...
Identifying necessary stream and watershed restoration actions requires quantifying natural potential habitat conditions to diagnose change evaluate potential. We used three general methods of potential: historical maps survey notes, contemporary reference sites, models. Historical information was available only for the floodplain analysis. sites estimate wood abundance, riparian shade, main channel length, side length. For fine sediment, temperature, beaver ponds we relied on estimated a...
In the Pacific Northwest, USA, climate change is expected to result in a shift average hydrologic conditions and increase variability. The relative vulnerabilities peak flow changes among salmonid species within same basin have not been widely evaluated. We assessed impacts of predicted increases flows on four populations Chehalis River basin. Coupling observations flows, emissions projections, multi-stage Beverton–Holt matrix-type life cycle models, we ran 100-year simulations spawner...