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California Tree Mortality Viewer
Five long years of drought, combined with the increased infestation of native bark beetles as a result of the drought, have contributed to the death of millions of trees on... -
129 Million Dead Trees in California
Welcome to our Story Map about California Tree Mortality. Since 2010 over 127 million trees have died due to drought and bark beetles. The hardest hit region is the Southern... -
Transect Survey - Mojave Desert - 2017 - Terrestrial Species Stressor Monitor...
Visual Encounter Transect Surveys of reptiles, amphibians, and other vertebrate wildlife taxa were conducted at a subset of study sites in the Mojave Desert in 2017. A total of... -
Time Constrained Search - 2017 - Terrestrial Species Stressor Monitoring [ds2...
Time constrained surveys for reptiles and amphibians were conducted at 184 Great Valley study sites, and 107 Mojave Desert sites, between March and June 2017. Whenever possible,... -
Site Establishment Survey - Terrestrial Species Stressor Monitoring [ds2831]
The TSM study areas were the USDA-defined Great Valley (GV) and Mojave Desert (MD) ecoregions, truncated to California state boundaries. A grid of hexagons adapted from the USDA... -
Quadrat Survey - Great Valley - 2016 - Terrestrial Species Stressor Monitorin...
A total of 36 visual encounter quadrat surveys were conducted at a subset of study sites in the Great Valley between April and July 2016. A time-constrained search of 1 hour was... -
Point Count Survey - Terrestrial Species Stressor Monitoring [ds2829]
Avian point count surveys were conducted at 184 Great Valley study sites, and 107 Mojave Desert sites, between March and June 2017. Whenever possible, three independent point... -
Habitat and Vegetation Assessment - 2017 - Terrestrial Species Stressor Monit...
Vegetation surveys were conducted at each Great Valley and Mojave Desert study site between March and June 2017. The surveys followed the California Department of Fish and... -
Habitat Rapid Assessment Survey - 2016 - Terrestrial Species Stressor Monitor...
Vegetation surveys were conducted at all Great Valley and Mojave Desert study sites between May and July 2016. These surveys followed the California Native Plant... -
Acoustic Bat Survey - Terrestrial Species Stressor Monitoring [ds2825]
Automated acoustic recorders were deployed at 331 sites across the Mojave Desert ecoregion and 263 sites across the Great Valley ecoregion between March and July of 2016 and... -
Acoustic Bird Survey - Terrestrial Species Stressor Monitoring [ds2824]
Automated acoustic recorders were deployed at 331 sites across the Mojave Desert ecoregion and 263 sites across the Great Valley ecoregion between March and July of 2016 and... -
Drought and Water Shortage Risk: Small Suppliers and Rural Communities (Versi...
Per California Water Code Section 10609.80 (a), DWR has released an update to the indicators analyzed for the rural communities water shortage vulnerability analysis and a new... -
2021-2022 West False River Emergency Drought Barrier water quality, flow, and...
To manage the critically low 2021 water supply for beneficial uses, DWR installed the temporary emergency drought barrier (EDB) on West False River in the Sacramento–San Joaquin... -
California High Hazard Zones (Tier 2)
On October 30, 2015 Governor Brown issued an emergency declaration requiring public agencies to identify areas of tree mortality that hold the greatest potential to result in... -
California High Hazard Zones (Tier 1)
On October 30, 2015 Governor Brown issued an emergency declaration requiring public agencies to identify areas of tree mortality that hold the greatest potential to result in...
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