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Compass: Mapping Oregon’s wildlife habitats - Metadata

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Wetland and Riparian Areas

Definition: Prioritizes wetland or riparian habitat areas.

Aggregation method: The source of this layer was developed by The Wetlands Conservancy (TWC), the results of which can be seen within the Wetland Restoration Planning Tool. Within the online tool, four scoring systems are presented: Ecosystem Services, Wetland Condition, Landscape Integrity, Conservation Value, or Restoration/Mitigation Potential. The scoring system used within the Wetland and Riparian Areas crucial habitat input layer is the results of a custom scoring system, created by TWC. Some of the parameters considered within this analysis include: designated Critical Habitat for a wetland-obligate species; known habitat for a Federal or State listed wetland-obligate species; habitat for amphibians, fish, waterbirds, or aquatic invertebrates; classified as a “Wetland of Conservation Concern” as defined in Oregon Administrative Rules; within 300ft of a spring; within specific distances from development projects such as dams, canals, roads, or contains any artificial drainage, farmed areas, or soil scraped or bulldozed. The scores are then normalized within watershed units, and result in a scoring range from 0-100. These results were then intersected with the crucial habitat hexagon base data, and each hexagon was then assigned the maximum wetland score contained within. Those maximum scores were then classified into a given priority.

As documented within the Restoration Planning Tool, the following disclaimer applies: The Wetlands Restoration Planning Tool is for planning and research purposes only. It is an estimation of the occurrence and extent of wetlands in Oregon, and does not necessarily map all wetlands or represent wetlands that are subject to Federal or State jurisdiction. It should not be used as a substitute for a wetland determination or delineation performed by a qualified wetland specialist. Many of the wetland polygons were derived only from aerial photo interpretation and may or may not meet wetland criteria in the field.

Priority Rank Definitions

Priority 1: Contains or intersects with a wetland found to have a very high Conservation Significance, and resulted in a Wetland Prioritization score of 100 - 91.

Priority 2: Contains or intersects with a wetland found to have a high Conservation Significance, and resulted in a Wetland Prioritization score of 90 - 76.

Priority 3: Contains or intersects with a wetland found to have a higher than average Conservation Significance, and resulted in a Wetland Prioritization score of 75-51.

Priority 4: Contains or intersects with a wetland found to have some amount of Conservation Significance, and resulted in a Wetland Prioritization score of 50-26.

Priority 5: Contains or intersects with a wetland found to have the least amount of Conservation Significance, and resulted in a Wetland Prioritization score of 25-1.

Priority 6: No wetlands documented in this area.

Data Source

Dataset Name

Dataset Description

Data Steward

Wetland Restoration Planning Tool

Estimation of the occurrence and extent of wetlands in Oregon, and evaluates existing wetland conditions. Specific parameters and scoring system used to evaluate wetland conditions for this analysis were provided by The Wetlands Conservancy.

The Wetlands Conservancy

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