BROWN BAG SEMINAR: Adventures in Decision-oriented Ecosystem Services Modeling

Ecosystem services are the many and varied benefits that humans gain from the natural environment – things such as food, water, wood, fish, and wildlife. While the concept of ecosystem services has been around for decades, it was the Millennium Ecosystem Assessment in the early 2000s that popularized the concept. The Assessment grouped ecosystem services four broad categories: provisioning (such […]

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BROWN BAG SEMINAR: Ecosystem services, conservation, and the Delta

Second part of a three part series investigating ecosystem services and what it means for science in the Delta Ecosystems are the communities that are formed by the interaction between living things such as plants, wildlife, and humans, and non-living things, such as the air, water, and soil. Humans are both part of ecosystems and a beneficiary of ecosystems in […]

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BROWN BAG SEMINAR: Towards multi-functional resilient landscapes: environmental heterogeneity as a bridge among diverse ecosystem services

Ecosystem services are the many and varied benefits that humans freely gain from the natural environment and from properly-functioning ecosystems that provide things such as food and fiber, timber, fish, and wildlife. Studies in ecosystem services estimate the ways ecosystems benefit us, be it by providing food, regulating floods, or creating a feeling of well-being. In early 2018, the Delta […]

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BROWN BAG SEMINAR: California floodplains and the fish that use them

How restoring functional flows to floodplains could help restore native fish Two centuries ago, the floor of the Central Valley was largely a marshy wetland.  In the springtime, the snowpack would melt, swelling the rivers beyond their banks and casting the young fish out onto the floodplains.  There they would stay for months, fattening up on the abundant zooplankton and […]

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BROWN BAG SEMINAR: Development of Recommended Flow Targets to Support Biological Integrity Based on Regional Flow-Ecology Relationships for Benthic Macroinvertebrates in Southern California Streams

Dr. Eric Stein is the principal scientist at Southern California Coastal Water Research Project where he oversees a variety of different kinds of projects focused on instream and coastal water quality, bioassessment, hydromodification, watershed modeling, and assessment of wetlands and other aquatic resources. This brown bag seminar is the second of three seminars focused on flow targets and ecology (part […]

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BROWN BAG SEMINAR: Developing Tiered Environmental Flow Criteria Using a Functional Flows Approach for California Streams

Establishing environmental flow targets to protect aquatic communities is a priority for numerous programs in California including in the Delta. In this first of three brown bag seminars focusing on flow targets and ecology, Dr. Yarnell discusses her recent work using a functional-flows approach to develop statewide environmental flow recommendations. The approach allows for the rapid development of flow regimes […]

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BROWN BAG SEMINAR: The Delta as Changing Landscapes

Letitia Grenier is the principal investigator for the San Francisco Estuary Institute’s Delta Landscapes project, which recently completed an in-depth analysis on the change in the Delta overtime and is now offering science-based guidance on how the Delta’s ecosystem health can be recovered as part of a working landscape.  Ms. Grenier is one of a number of authors on the […]

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BROWN BAG SEMINAR: Flow Dynamics and Transport of Water-Quality Constituents in the Sacramento-San Joaquin River Delta

Dr. David Schoellhamer, Research Hydrologist for the USGS, earned his bachelors degree in civil engineering from UC Davis and a doctorate in Coastal and Oceanographic Engineering from University of Florida.  He has studied sediment transport in the San Francisco Estuary since 1993.  He was the lead author for the chapter on flow dynamics and transport of water quality constituents in […]

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Delta nutrients: Sources, sinks, sags, soups, and sensors

Delta Lead Scientist Cliff Dahm discusses sources and effects of nutrients in the Delta Increasing clarity of waters, the emergence of harmful algal blooms, the proliferation of aquatic water weeds, and altered food webs have brought the issue of nutrient dynamics to the forefront in the Delta. Nutrients, such as nitrogen (or ammonium) and phosphorus can be beneficial or detrimental […]

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Deconstructing the current California drought

Dr. Michael Dettinger takes a data dive into the impacts of the California drought California, currently in its fifth (and possibly sixth) year of severe drought, is now identified with large shifts towards persistent dry periods, separated by large storms, and accompanied by record-breaking warm temperatures. These conditions are characteristic of droughts projected to accompany climate change. At a brown […]

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