View In:   ArcGIS Online Map Viewer

Name: Maryland Habitat Connectivity Network - Hubs Corridors and Gaps

Display Field: HC_Type

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The Maryland Habitat Connectivity Network (HCN) provides high resolution, statewide data regarding the connected network of hubs, corridors, and gaps throughout the state. For the purposes of the MD HCN, hubs were defined as large contiguous blocks of forests and wetlands, corridors are defined as linear features connecting hubs that enable animals and plant propagules to move between hubs, and gaps are defined as areas within corridors that are not currently part of the optimal natural land use type(s). The Maryland Habitat Connectivity Network (HCN) was formerly referred to as Maryland's Green Infrastructure Assessment (GIA). The original GIA was completed in 2003, and included mapping of hubs and corridors using 30m resolution Landsat landcover landuse data. GIA hubs were updated in 2010, using newer Landsat data, however corridors were not remapped at that time. This current update to the MD HCN dataset leverages the Chesapeake Conservancy’s 2017/2018 1m Land Use Land Cover (LCLU) dataset. This update provides the most up to date, high resolution green infrastructure data possible for the state. This data set also contains several improvements, including a more detailed breakdown of 3 hub types (forest, wetland, aquatic), 2 corridor types (forest and aquatic), and 3 corridor and gap statuses (natural corridor, restorable gap, non-restorable gap). ***Please note, the MD Habitat Corridor Network is simply a renaming of the Maryland Green Infrastructure Assessment. The data represented in the HCN is the same data contained in the most recent update to the MD GIA.

Copyright Text: DNR, Chesapeake Conservancy MD, iMAP, Rachel Marks (rachel.marks@maryland.gov)

Default Visibility: true

MaxRecordCount: 40000

Supported Query Formats: JSON, geoJSON

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Extent:

XMin: -8848462.2681
YMin: 4567223.3376
XMax: -8354409.6493
YMax: 4825776.6501
Spatial Reference: 102100  (3857)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: HC_Type
Field 2: null
Field 3: null
Field Delimiter: ,
Default Symbol:
N/A
Default Label: null
UniqueValueInfos:
• Value: Upland Hubs
  Label: Upland Hubs
  Description:
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• Value: Wetland Hubs
  Label: Wetland Hubs
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• Value: Aquatic Hubs
  Label: Aquatic Hubs
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• Value: Upland Corridor: Natural
  Label: Upland Corridor Natural
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• Value: Aquatic Corridor: Natural
  Label: Aquatic Corridor Natural
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• Value: Upland Corridor: Restorable Gap
  Label: Upland Corridor Restorable Gap
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• Value: Aquatic Corridor: Restorable Gap
  Label: Aquatic Corridor Restorable Gap
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• Value: Upland Corridor: Non-Restorable
  Label: Upland Corridor Non-Restorable
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• Value: Aquatic Corridor: Non-Restorable
  Label: Aquatic Corridor Non-Restorable
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Labeling Info:

Advanced Query Capabilities:

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Supports OrderBy: true
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Supports Pagination: true
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Supports Query With Distance: true
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Supports Returning Geometry Centroid: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: HC_Type

Fields:

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Types:

ID: Upland Hubs
Name: Upland Hubs
Domains:
Templates:
• Name: Upland Hubs
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  Inter_acres: null
  HC_Type: Upland Hubs
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  Area_km2: null
  
  Drawing Tool: esriFeatureEditToolPolygon

---

ID: Wetland Hubs
Name: Wetland Hubs
Domains:
Templates:
• Name: Wetland Hubs
  Description:
  Prototype:
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  Inter_acres: null
  HC_Type: Wetland Hubs
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  Area_km2: null
  
  Drawing Tool: esriFeatureEditToolPolygon

---

ID: Aquatic Hubs
Name: Aquatic Hubs
Domains:
Templates:
• Name: Aquatic Hubs
  Description:
  Prototype:
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  Inter_acres: null
  HC_Type: Aquatic Hubs
  Cross_Hwy: null
  Area_km2: null
  
  Drawing Tool: esriFeatureEditToolPolygon

---

ID: Upland Corridor: Natural
Name: Upland Corridor: Natural
Domains:
Templates:
• Name: Upland Corridor: Natural
  Description:
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  Inter_acres: null
  HC_Type: Upland Corridor: Natural
  Cross_Hwy: null
  Area_km2: null
  
  Drawing Tool: esriFeatureEditToolPolygon

---

ID: Aquatic Corridor: Natural
Name: Aquatic Corridor: Natural
Domains:
Templates:
• Name: Aquatic Corridor: Natural
  Description:
  Prototype:
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  Inter_acres: null
  HC_Type: Aquatic Corridor: Natural
  Cross_Hwy: null
  Area_km2: null
  
  Drawing Tool: esriFeatureEditToolPolygon

---

ID: Upland Corridor: Restorable Gap
Name: Upland Corridor: Restorable Gap
Domains:
Templates:
• Name: Upland Corridor: Restorable Gap
  Description:
  Prototype:
  Area_acres: null
  Inter_acres: null
  HC_Type: Upland Corridor: Restorable Gap
  Cross_Hwy: null
  Area_km2: null
  
  Drawing Tool: esriFeatureEditToolPolygon

---

ID: Aquatic Corridor: Restorable Gap
Name: Aquatic Corridor: Restorable Gap
Domains:
Templates:
• Name: Aquatic Corridor: Restorable Gap
  Description:
  Prototype:
  Area_acres: null
  Inter_acres: null
  HC_Type: Aquatic Corridor: Restorable Gap
  Cross_Hwy: null
  Area_km2: null
  
  Drawing Tool: esriFeatureEditToolPolygon

---

ID: Upland Corridor: Non-Restorable
Name: Upland Corridor: Non-Restorable
Domains:
Templates:
• Name: Upland Corridor: Non-Restorable
  Description:
  Prototype:
  Area_acres: null
  Inter_acres: null
  HC_Type: Upland Corridor: Non-Restorable
  Cross_Hwy: null
  Area_km2: null
  
  Drawing Tool: esriFeatureEditToolPolygon

---

ID: Aquatic Corridor: Non-Restorable
Name: Aquatic Corridor: Non-Restorable
Domains:
Templates:
• Name: Aquatic Corridor: Non-Restorable
  Description:
  Prototype:
  Area_acres: null
  Inter_acres: null
  HC_Type: Aquatic Corridor: Non-Restorable
  Cross_Hwy: null
  Area_km2: null
  
  Drawing Tool: esriFeatureEditToolPolygon

---

Capabilities: Query,Extract

Sync Can Return Changes: false

Is Data Versioned: false

Supports Rollback On Failure: true

Supports ApplyEdits With Global Ids: false

Supports Query With Historic Moment: false

Supports Coordinates Quantization: true

Supported Operations:   Query   Query Attachments   Calculate   Validate SQL   Generate Renderer   Return Updates   Iteminfo   Thumbnail   Metadata