Geodatabase application for invasive plant tracking and coordinated habitat restoration

Non-native invasive plants, such as Lepidium latifolium and Arundo donax, threaten
the ecological integrity of riparian habitat throughout California. Numerous projects
across the state are underway to eradicate select weeds, yet there is little or no
monitoring of parameters that...

Fish invasions in California watersheds: testing hypotheses using landscape patterns

An important goal of invasion biology is to identify physical and environmental characteristics that may make a region particularly receptive to invasions. The inland waters of California (USA) are highly invaded, particularly by fishes, although there is wide variation in numbers of nonnative...

Designing a geodatabase for your project: A wetlands delineation example

The key to successful geodatabase design in ArcGIS 8.3 is laying out the project objectives before you begin. Our team at the Information Center for the Environment at UC Davis is mapping for the US Fish and Wildlife Service National Wetlands Inventory (NWI). This paper addresses how we...

Geospatial Risk Assessment of North Coast Watersheds in California

Researchers at the Information Center for the Environment (ICE) are using ArcGIS to inventory and monitor environmental risks to California’s north, coastal watersheds. In collaboration with state agencies, ICE has created a comprehensive GIS for selected watersheds in which water quality...

Detecting Patterns of Land Use Disturbance at a Watershed Scale: A Study of the Navarro River Watershed using Hyperspectral Data Analysis Techniques

Analysis of hyperspectral data is a particularly novel approach to investigation of the relation between anthropogenic and natural disturbances, geomorphic responses, and ecosystem patterns at the watershed scale. During July 2000, hyperspectral imagery was collected for the Navarro basin (...

Mass Wasting Identification in the Navarro River Watershed Using Hyperspectral Imagery

Several of northern California's coastal watersheds have been listed by the U.S. Environmental Protection Agency as requiring the development of a Total Maximum Daily Load (TMDL) for non-point source pollution. One such case is the Navarro River watershed located in southern Mendocino County....

Geographic Information System support for total maximum daily load analysis of the Mattole River Watershed, Humboldt County, California

The Mattole River Watershed (Figure 1), Humboldt County, California, is listed on the Clean Water Act Section 303(d) list of impaired water bodies, for sediment and temperature. As required by this section and subsequent litigation, the North Coast Regional Water Quality Control Board (NCRWQCB)...

Climatic and spatial patterns of diversity in the serpentine plants of California

The insular distribution of distinctive substrates, such as outcrops of serpentine rock, may either promote plant diversity by enhancing opportunities for speciation or reduce diversity by increasing rates of extinction. To examine the relationship between diversity and the spatial structure of...

Watershed analysis tool for environmental resources: GIS technology in the new millennium

The Information Center for the Environment (ICE), UC Davis, is currently developing a decision support system to facilitate watershed analyses by state resource agencies in California. ICE is using the latest in ESRI GIS to provide resource managers critical environmental data, including a...

Using GIS to improve water quality reporting in California

In 1998, the California Regional Water Quality Control Board (RWQCB) scientists were trained to use the Geospatial Waterbody System (GeoWBS), developed by the Information Center for the Environment (ICE). The Regional Board scientists are currently using the system to report waterbody...

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