California’s diverse landscapes span coast, mountains, forests, deserts and major river basins. This archive covers conservation, wildlife, habitats and environmental management across the state.
6 stories
The 2025 survey recorded similar occupancy and territory totals to recent years in consistently monitored plots, but local trends and habitat indicators varied.
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An analysis of dissolved-oxygen records from six sites found that invasive aquatic vegetation, dry years and a drought barrier were associated with changes in ecosystem metabolism. The results describe ecological processes, not demonstrated conservation gains.
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A method using pesticide application records estimated annual crop types and acreage, but its comparison with state maps also highlighted areas of uncertainty.
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A USGS study estimates increases in streamflow and soil moisture after major fires, but the modelled gains vary and do not establish a lasting or reliable water-supply benefit.
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Testing from 2022 to 2025 found three confirmed infections alongside widespread influenza-antibody evidence in sampled ducks and geese. The antibodies indicate previous exposure, but cannot show that birds are immune or identify the virus responsible.
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The state has asked to intervene in a federal case over river operations, while saying it intends to keep negotiating with California and Nevada.
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Forests