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, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Supports Datum Transformation: 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: N/A
Field 3: N/A
Field Delimiter: ,
Default Symbol:
N/A
Default Label: N/A
UniqueValueInfos:
• Value: Upland Hubs
  Label: Upland Hubs
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [56, 168, 0, 255]
  Outline:
  N/A
• Value: Wetland Hubs
  Label: Wetland Hubs
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [0, 132, 168, 255]
  Outline:
  N/A
• Value: Aquatic Hubs
  Label: Aquatic Hubs
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [0, 197, 255, 255]
  Outline:
  N/A
• Value: Upland Corridor: Natural
  Label: Upland Corridor Natural
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [152, 230, 0, 255]
  Outline:
  N/A
• Value: Aquatic Corridor: Natural
  Label: Aquatic Corridor Natural
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [190, 232, 255, 255]
  Outline:
  N/A
• Value: Upland Corridor: Restorable Gap
  Label: Upland Corridor Restorable Gap
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [255, 255, 0, 255]
  Outline:
  N/A
• Value: Aquatic Corridor: Restorable Gap
  Label: Aquatic Corridor Restorable Gap
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [223, 115, 255, 255]
  Outline:
  N/A
• Value: Upland Corridor: Non-Restorable
  Label: Upland Corridor Non-Restorable
  Description: N/A
  Symbol:
  Style: esriSFSSolid
  Color: [255, 190, 190, 255]
  Outline:
  N/A
• Value: Aquatic Corridor: Non-Restorable
  Label: Aquatic Corridor Non-Restorable
  Description: N/A
  Symbol:
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  Color: [255, 190, 190, 255]
  Outline:
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Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: true
Supports Returning Geometry Centroid: true
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: false
Supports Sql Format: false
Supports Query Analytic: true
Supports Query With Current User: true

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: HC_Type

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: GIS Object ID, editable: false, nullable: false, defaultValue: null, modelName: OBJECTID )
• HC_Type ( type: esriFieldTypeString, alias: HC_Type, editable: true, nullable: true, length: 512, defaultValue: null, modelName: HC_Type )
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• Shape__Length ( type: esriFieldTypeDouble, alias: GIS Shape Length (m), editable: false, nullable: true, defaultValue: null, modelName: Shape.STLength(), required: true )

Types:

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

---

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

---

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

---

Capabilities: Query

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

Child Resources:   Field Groups   Contingent Values

Supported Operations:   Query   Query Analytic   Validate SQL   Generate Renderer   Return Updates   Iteminfo   Thumbnail   Metadata   Update Metadata