Risk to Biodiversity of the Central Roper River Catchment, 2024

Index:

Metadata
Citation
Description

Dataset Status
Data Quality
Contact Information
Data Dictionary
Supplementary Information

Metadata Details:

Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile

Version:1.0

Date Metadata Extracted:2025-12-13

Date Metadata Last Updated:2025-10-29

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=41A156C89896038CE0632144CD9BE6D9

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=41A156C89896038CE0632144CD9BE6D9

Citation

ANZLIC Identifier:41A156C89896038CE0632144CD9BE6D9

Title: Risk to Biodiversity of the Central Roper River Catchment, 2024

Citation Date:2025-10-21

Date Type:creation

Custodian:Department of Lands, Planning and Environment

Description

Abstract:

Polygon data presenting the biodiversity risks for the Mapping the Future project in the central Roper River catchment area.

Biodiversity values across the study area include sensitive and/or significant vegetation communities and threatened and significant flora and fauna. These values were identified and assessed to derive Risk to Biodiversity classes, which were mapped across the study area.

Further details on the biodiversity assessment are provided in the report listed in Supplementary Information.

Note: A polyline spatial dataset delineating mapped streams in the biodiversity assessment study area should be used in conjunction with this polygon data (http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=41A504E31CB31D6BE0632144CD9B1547 ). The polyline data identifies complex or large systems of palustrine wetlands, such as those associated with the Roper River and tributaries, considered areas of sensitive and or significant biodiversity (Class 4); and perennial reaches of the Roper River and tributaries that provide suitable habitat for threatened species including the Largetooth Sawfish (Pristis pristis) and Gulf Snapping Turtle (Elseya lavarackorum), considered to have high biodiversity value (Class 5).

Produced as part of the biodiversity assessment for the Mapping the Future project of the central Roper River catchment area.
The biodiversity assessment study area covers approximately 1,725,000 ha and extends from south-west of the township of Mataranka to the edge of the Limmen National Park and Arnhem Land Aboriginal Land Trust in the east.

ANZLIC Search Words:

biota

environment

Spatial Domain:

Bounding Coordinates:

North Bounding Coordinate:-14.287135

South Bounding Coordinate:-15.416373

East Bounding Coordinate:134.668169

West Bounding Coordinate:132.915407

Dataset Status

Dataset ID:

Language:English

Character Set: Latin 1

Progress:completed

Maintenance and Update Frequency:notPlanned

Data Currency Start Date:2025-10-21

Data Currency End Date:2025-10-21

Access Constraint:Links to download reports, maps and spatial datasets are noted in the Development Opportunities website. depws.nt.gov.au/DevelopmentOpportunities
or
Download the spatial data package via data.nt.gov.au/
or FTP via ftp-dlrm.nt.gov.au/main.html?download&weblink=45f76fc7895540d62c9d2f8035f3985a&realfilename=BioRisk_CentralRoper.zip

You are licensed to use this publication on the terms and conditions set out in: Creative Commons Attribution 4.0 International Public License (CC BY 4.0) at: creativecommons.org/licenses/by/4.0/legalcode
If you do not agree to the terms and conditions you must not use this publication.
You are free to copy, communicate and adapt the licensed material, provided that you abide by the licence terms (including Attribution) and attribute the licensed material using the statement:
Supplied by the Department of Lands, Planning and Environment. Copyright Northern Territory Government.

Data Quality

Lineage:Linework were derived and amalgamated from sources including:
- Melaleuca Survey of the Northern Territory ( http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2DBCB7711FE606B6E040CD9B0F274EFE )
- Monsoon Vine - Forest Distribution in the Northern Territory ( http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2DBCB771203306B6E040CD9B0F274EFE )
- Vegetation Communities of the Southern Part of Flying Fox Station, Northern Territory ( http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=63183794BC1B70B1E050CD9B21444778 )
- Land Systems of the Roper River Catchment, Northern Territory ( http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2DBCB77120C806B6E040CD9B0F274EFE )
- Land Use Mapping Project of the Northern Territory, 2016 - 2024 ( http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=1F135F528BCF736EE0632144CD9BC2F4 )
- Australian Hydrological Geospatial Fabric v3.2 ( https://www.bom.gov.au/water/geofabric/ )
- Sites of Conservation Significance ( http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=A399721EA6343B41E040CD9B21444C69 )

Further details on the biodiversity assessment and development of the biodiversity risk map are provided in the report listed in Supplementary Information.

Positional Accuracy:Positional accuracy is related to the datasets reported in the Lineage section.
Some of those data were produced at a 1:250,000 mapping scale and methods included creating original linework on printed maps which were subsequently digitised.

Attribute Accuracy:Attribute values are assigned to each polygon and described in the Data Dictionary below.
The attribute naming format uses 10 characters with no spaces to be suitable for an ESRI shape-file format. An alias attribute name is applied to an ESRI file geo-database format.

Logical Consistency:Polygon topology rules applied: must not overlap, must not have gaps and each polygon has only one label.

Completeness:Completed

Contacts

Name Organisation Position Role Phone Fax Email

Data Requests Officer Department of Lands, Planning and Environment Geospatial Services Unit (on behalf of department) distributor Datarequests.DLPE@nt.gov.au

Name	Organisation	Position	Role	Phone	Fax	Email
Data Requests Officer	Department of Lands, Planning and Environment	Geospatial Services Unit (on behalf of department)	distributor			Datarequests.DLPE@nt.gov.au

Data Dictionary

Attribute Attribute Description Possible Code Code Description

01. PROJECT Mapping the Future project name

02. BIORISK Alias: Biodiversity Risk Class
Integer from 1 to 5
Each Risk to Biodiversity Class is described in 3 parts. They are joined together for mapping display.
Each of the 3 parts is also noted as an attribute - see BIODESC1, 2 and 3. 1 (1) NIL (2) Highly modified (3) Land that has been significantly altered through land use, development, mining or infrastructure.

3 (1) MITIGABLE (2) Apply the mitigation hierarchy (3) Land that may provide habitat for broadly-occurring threatened species or other biodiversity values. Retention of a proportion of this habitat (e.g. through application of the NT Land Clearing Guidelines) may be required to protect biodiversity values.

4 (1) MODERATE (2) Sensitive and/or significant vegetation (3) Land containing sensitive or significant vegetation types (including groundwater-dependent ecosystems), as identified in the NT Land Clearing Guidelines and/or occurrence of species of conservation interest.

5 (1) HIGH (2) High biodiversity value (3) Land having high biodiversity value, based on significant vegetation community type and/or habitat for threatened species.

03. BIODESC1 Alias: BioRisk - Description 1
Part 1 of the Biodiversity Risk Class description, as described in the BIORISK attribute.

04. BIODESC2 Alias: BioRisk - Description 2
Part 2 of the Biodiversity Risk Class description, as described in the BIORISK attribute.

05. BIODESC3 Alias: BioRisk - Description 3
Part 3 of the Biodiversity Risk Class description, as described in the BIORISK attribute.

06. SOCS Alias: Sites of Conservation Significance (SOCS)
Attributed with the Sites of Conservation Significance name.

07. SSV Alias: Sensitive and/or significant vegetation (SSV)
Hierarchically presents areas of rainforest, melaleuca communities, and wetlands and swamps. Note that some areas may be considered as multiple SSV types but a flat layer was produced for this dataset.

08. MODIF Alias: Highly modified area
Highly modified areas derived from the Northern Territory Government's Land Use Mapping (Staben and Edmeades 2017), including areas of intensive uses and production from dryland and irrigated agriculture and plantations, and areas with land clearing approved.

Attribute	Attribute Description	Possible Code	Code Description
01. PROJECT	Mapping the Future project name
02. BIORISK	Alias: Biodiversity Risk Class Integer from 1 to 5 Each Risk to Biodiversity Class is described in 3 parts. They are joined together for mapping display. Each of the 3 parts is also noted as an attribute - see BIODESC1, 2 and 3.	1	(1) NIL (2) Highly modified (3) Land that has been significantly altered through land use, development, mining or infrastructure.
		3	(1) MITIGABLE (2) Apply the mitigation hierarchy (3) Land that may provide habitat for broadly-occurring threatened species or other biodiversity values. Retention of a proportion of this habitat (e.g. through application of the NT Land Clearing Guidelines) may be required to protect biodiversity values.
		4	(1) MODERATE (2) Sensitive and/or significant vegetation (3) Land containing sensitive or significant vegetation types (including groundwater-dependent ecosystems), as identified in the NT Land Clearing Guidelines and/or occurrence of species of conservation interest.
		5	(1) HIGH (2) High biodiversity value (3) Land having high biodiversity value, based on significant vegetation community type and/or habitat for threatened species.
03. BIODESC1	Alias: BioRisk - Description 1 Part 1 of the Biodiversity Risk Class description, as described in the BIORISK attribute.
04. BIODESC2	Alias: BioRisk - Description 2 Part 2 of the Biodiversity Risk Class description, as described in the BIORISK attribute.
05. BIODESC3	Alias: BioRisk - Description 3 Part 3 of the Biodiversity Risk Class description, as described in the BIORISK attribute.
06. SOCS	Alias: Sites of Conservation Significance (SOCS) Attributed with the Sites of Conservation Significance name.
07. SSV	Alias: Sensitive and/or significant vegetation (SSV) Hierarchically presents areas of rainforest, melaleuca communities, and wetlands and swamps. Note that some areas may be considered as multiple SSV types but a flat layer was produced for this dataset.
08. MODIF	Alias: Highly modified area Highly modified areas derived from the Northern Territory Government's Land Use Mapping (Staben and Edmeades 2017), including areas of intensive uses and production from dryland and irrigated agriculture and plantations, and areas with land clearing approved.

Supplementary Information

BIBLIOGRAPHIC REFERENCE
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Buckley, K., Leiper, I., Nano, C., Wedd, D. and Wilson, D. (2024). Mapping the Future - Biodiversity assessment of the central Roper River catchment. Technical Report 14/2024, Department of Environment, Parks and Water Security, Northern Territory Government, Darwin, Australia.

ASSOCIATED REFERENCES
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Staben, G., Edmeades, B. (2017) Northern Territory Land Use Mapping for Biosecurity 2016. Technical Report 18/2017D. Department of Environment and Natural Resources, Northern Territory Government, Darwin, Northern Territory.

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Metadata : Risk to Biodiversity of the Central Roper River Catchment, 2024