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Seasonal extent of wetted areas in wetlands and canals, and mean salinity concentration of sampled bodies of water at Grizzly Island within Suisun Marsh, California during 2018. Salinity concentrations were divided into categories based on studies that tested the effects of salinity on duckling growth and survival: ranging from no detectable negative effects (< 2 ppt) to rapidly lethal effects (> 21 ppt), with the severity of effects increasing with each colored bin. Areas in black were wet earlier in the breeding season (April or May) but dried up later in the season (May or July), thus providing no habitat for ducklings. Background imagery source: ESRI DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community
Schacter, C, SH Peterson, MP Herzog, CA Hartman, ML Casazza, and JT Ackerman. 2021. Wetland availability and salinity concentrations for breeding waterfowl in Suisun Marsh, California. San Francisco Estuary and Watershed Science 19(3):5:1-25.