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Layer: Number of Harmful Invasive Species by Marine Ecoregion (ID:0)

View In:   Map Viewer

Name: Number of Harmful Invasive Species by Marine Ecoregion

Display Field: ECOREGION

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Number of harmful species that have invaded marine habitats, by marine ecoregion. The occurrence and ecological impact of marine invasive species were compiled in a geographically referenced database by Molnar et al. (2008). Information about 329 species was systematically collected from a wide variety of global, regional, national, and subnational data sources. Non-native distributions were documented by marine ecoregion. The threat of each species to native biodiversity was scored using the following categories: 4, disrupts entire ecosystem processes with wider abiotic influences; 3, disrupts multiple species, some wider ecosystem function, and/or keystone species or species of high conservation value (e.g., threatened species); 2, disrupts single species with little or no wider ecosystem impact; 1, little or no disruption. Species in the top two categories (scores of 3 or 4) are considered “harmful invasive species” in this atlas (n=187), and the number of these are displayed in the map by ecoregion. These data were derived by The Nature Conservancy, and were displayed in a map published in The Atlas of Global Conservation (Hoekstra et al., University of California Press, 2010). More information at http://nature.org/atlas. Data derived from: Molnar, J. L., R. Gamboa, C. Revenga, and M. Spalding. 2008. Assessing the global threat of invasive species to marine biodiversity: Framing the big picture. Frontiers in Ecology and the Environment 6, no. 9: 485–492. This dataset was uploaded to Data Basin and is available with additional information at: http://app.databasin.org/app/pages/datasetPage.jsp?id=96f2def1efee4565bf039a04b56d9a86

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Min. Scale: 0

Max. Scale: 0

Default Visibility: false

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

Drawing Info:

HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: FID

Unique ID Field:

Global ID Field:

Type ID Field: mr_invasv

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Types:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 10/9/2025 9:06:14 AM

Schema Last Edit Date: 10/9/2025 9:06:14 AM

Data Last Edit Date: 10/9/2025 9:06:14 AM

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