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The Element Occurrence (EO) data are collected and maintained by the Washington Natural Heritage Program using a standardized methodology to provide accurate and current biodiversity and conservation information to public and private agencies and individuals. The primary emphasis is on species and ecological communities that are rare or otherwise imperiled. Uses of the data can include: natural resource management, conservation planning, environmental review, biological and ecological research, land acquisition, and economic development. Through aggregation of the EO data at regional, national, or range-wide scales, these data can be used to examine broad patterns and set priorities in a global context. |
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The Element Occurrence (EO) data are collected and maintained by the Washington Natural Heritage Program using a standardized methodology to provide accurate and current biodiversity and conservation information to public and private agencies and individuals. The primary emphasis is on species and ecological communities that are rare or otherwise imperiled. Uses of the data can include: natural resource management, conservation planning, environmental review, biological and ecological research, land acquisition, and economic development. Through aggregation of the EO data at regional, national, or range-wide scales, these data can be used to examine broad patterns and set priorities in a global context. |
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Washington Natural Heritage Program |
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The Washington Natural Heritage Program maintains a database of rare and imperiled species and plant communities for the state. The Element Occurrence (EO) records that form the core of the Natural Heritage database include information on the location, status, characteristics, numbers, condition, and distribution of elements of biological diversity using established Natural Heritage Methodology developed by NatureServe and The Nature Conservancy (TNC). An Element Occurrence (EO) is an area of land and/or water in which a species or natural community is, or was, present. An EO should have practical conservation value for the Element as evidenced by potential continued (or historical) presence and/or regular recurrence at a given location. For species Elements, the EO often corresponds with the local population, but when appropriate may be a portion of a population or a group of nearby populations (e.g., metapopulation). For community Elements, the EO may represent a stand or patch of a natural community, or a cluster of stands or patches of a natural community. Because they are defined on the basis of biological information, EOs may cross jurisdictional boundaries. An Element Occurrence record is a data management tool that has both spatial and tabular components including a mappable feature and its supporting database. EOs are typically represented by bounded, mapped areas of land and/or water or, at small scales, the centroid point of this area. EO records are most commonly created for current or historically known occurrences of natural communities or native species of conservation interest. They may also be created, in some cases, for extirpated occurrences. |
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These data are dependent on the research and observations of many scientists and institutions, and reflect our current state of knowledge for the State of Washington. Many areas have never been thoroughly surveyed, however, and the absence of data in any particular geographic area does not necessarily mean that species or ecological communities of concern are not present. These data should not be regarded as a substitute for on-site surveys required for environmental assessments. If ground-disturbing activities are proposed on a site, the appropriate state natural heritage program(s) or conservation data center should be contacted for a site-specific review of the project area. For contact information, see the Washington Natural Heritage web site at http://www.dnr.wa.gov/natural-heritage-program. |
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DBO.DNR_Rare_plants |
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["biota","wetlands","conservation","endangered","NatureServe","Washington State","ecosystems","natural community","biodiversity","species","Natural Heritage Program","rare","threatened"] |
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en-US |
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NaN |
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