A5042093106- Soil erosion and sediment transport
- Hydrology and Sediment Transport Processes
- Hydrology and Watershed Management Studies
- Species Distribution and Climate Change
- Climate change impacts on agriculture
- Land Use and Ecosystem Services
- Wildlife-Road Interactions and Conservation
- Peatlands and Wetlands Ecology
- Pleistocene-Era Hominins and Archaeology
- Fire effects on ecosystems
- Wildlife Ecology and Conservation
- Coastal wetland ecosystem dynamics
- Oceanographic and Atmospheric Processes
- demographic modeling and climate adaptation
- Hydraulic flow and structures
- Forest Management and Policy
- Sustainability and Climate Change Governance
- Climate variability and models
- Landslides and related hazards
- Soil and Water Nutrient Dynamics
- Flood Risk Assessment and Management
- Geology and Paleoclimatology Research
- Tree Root and Stability Studies
- Plant and animal studies
- Rangeland and Wildlife Management
University of California, Davis
2010
University of California, Berkeley
1995-2004
Abstract We measured the effect of wet meadow vegetation on bank strength and failure mechanics a meandering montane stream, South Fork Kern River at Monache Meadow, in California's Sierra Nevada. Streambanks colonized by ‘wet’ graminoid were average five times stronger than those ‘dry’ xeric scrub vegetation. Our measurements show that is correlated with density indicators, including stem counts, standing biomass per unit area, ratio root mass to soil mass. Rushes appear better sedges...
Abstract Riparian forest vegetation is widely believed to protect riverbanks from erosion, but few studies have quantified the effect of riparian removal on rates river channel migration. Measured historical changes in a centreline, combined with mapped floodplain vegetation, provide an opportunity test how cover affects erodibility riverbanks. We analysed meander migration patterns 1896 1997 for central reach Sacramento River between Red Bluff and Colusa, using planform data compiled maps...
Abstract We measured patterns of river channel migration and cutoff between 1904 1997 on a 160 km meandering alluvial reach the Sacramento River by intersecting sequential set centrelines mapped from field survey aerial photography. identified approximate dates locations cutoffs quantified dimensions. Twenty‐seven chute 11 partial occurred over this 93‐year time interval, with an average one approximately every 2.5 years or 0.0029 per kilometre year. The rate lateral change was study period...
Abstract We quantified how rates of stream channel migration in a montane meadow vary as function the riparian vegetation community. The South Fork Kern River at Monache Meadow, located California's southern Sierra Nevada range, supports two distinct types vegetation: dry community dominated by sagebrush and non‐native grasses (xeric scrub meadow), wet rushes sedges (hydric graminoids). measured lateral for versus reaches from aerial photographs spanning 40‐year period (1955–1995). While...
Abstract Wildfire can impact soil‐hydraulic properties by reducing saturated hydraulic conductivity and sorptivity, making recently burned landscapes prone to debris flows flash floods. The post‐fire hazard window range from years decades. In Northern California, where wildfire frequency is steadily increasing, the recovery wildfires unknown. Following October 2017 Nuns Tubbs fires in Bay Area of we established 41 monitoring sites for repeat tension‐disc infiltrometer measurements...
Climate change is raising challenging concerns for systematic conservation planning. Are methods based on the current spatial patterns of biodiversity effective given long‐term climate change? Some scientists argue that planning should focus protecting abiotic diversity in landscape, which drives biological diversity, rather than focusing distribution focal species, shift response to change. one important driver patterns, as different climates host communities and genetic pools. We propose...
Significant efforts are underway to translate improved understanding of how climate change is altering ecosystems into practical actions for sustaining ecosystem functions and benefits. We explore this transition in California, where adaptation mitigation advancing relatively rapidly, through four case studies that span large spatial domains encompass diverse ecological systems, institutions, ownerships, policies. The demonstrate the context specificity societal adapt involve applications...
Well-managed and connected protected area networks are needed to combat the 6th mass extinction, yet implementation of plans intended secure landscape connectivity remains insufficient. The failure translate planning efforts into effective action (i.e., research-implementation gap) hinders our ability conserve biodiversity threatened by ongoing climate change habitat fragmentation. Sustained collaboration between researchers practitioners co-produce conservation strategies can bridge this...
We modeled the hydrology of basins draining into northern portion San Francisco Bay Estuary (North Pablo Bay) using a regional water balance model (Basin Characterization Model; BCM) to estimate potential effects climate change at watershed scale. The BCM calculates components, including runoff, recharge, evapotranspiration, soil moisture, and stream flow, based on climate, topography, soils underlying geology, solar-driven energy balance. downscaled historical projected precipitation air...
Climate-wise connectivity is essential to provide species access suitable habitats in the future, yet we lack a consistent means of quantifying climate adaptation benefits habitat linkages. Species range shifts cooler climates have been widely observed, suggesting should protect pathways providing locations. However, topographically diverse regions, effects elevation, seasonality, and proximity large water bodies are complex drivers biologically relevant temperature gradients. Here, identify...
Journal Article Is wetter better? Get access Robert A. Leidy, Leidy Search for other works by this author on: Oxford Academic Google Scholar Peggy L. Fiedler, Fiedler Elisabeth R. Micheli BioScience, Volume 42, Issue 1, January 1992, Pages 58–65, https://doi.org/10.2307/1311629 Published: 01 1992