Metadata : Risk to Biodiversity of the Wadeye Area, 2021

Index:


Metadata Details:

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

Version:1.0

Date Metadata Extracted:2024-04-18

Date Metadata Last Updated:2021-06-29

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=C320B9E59A4B2354E0532144CD9BAD5C

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=C320B9E59A4B2354E0532144CD9BAD5C


Citation

ANZLIC Identifier:C320B9E59A4B2354E0532144CD9BAD5C

Title: Risk to Biodiversity of the Wadeye Area, 2021

Citation Date:2021-05-25

Date Type:creation

Custodian:Department of Environment, Parks and Water Security


Description

Abstract:

This polygon spatial dataset describes the Risk to Biodiversity in the Wadeye Area, located approximately 250 km south-east of Darwin in the Northern Territory. The biodiversity assessment area covers 17,800 ha.

Flora surveys were undertaken between September and November 2018 to assess the distribution and abundance of significant flora and vertebrate fauna species. Sensitive and significant vegetation communities were also identified and mapped.

This information is part of the Mapping the Future Project of the Wadeye Area. This project has identified land capability, water availability and biodiversity values to support land planning and inform development potential over the Wadeye area. Reports and maps for the Wadeye project can be viewed from the webpage: https://depws.nt.gov.au/DevelopmentOpportunities
- Development Potential of the Wadeye Area (2021)
- Biodiversity Assessment of the Wadeye Area (2021)
- Wadeye Region Water Resource Investigation (2020)
- Soil and Land Suitability Assessment for Irrigated Agriculture in the Nangu Area, Daly River/Port Keats Aboriginal Land Trust (2017)

ANZLIC Search Words:

Spatial Domain:

Bounding Coordinates:


Dataset Status

Dataset ID:

Language:English

Character Set: Latin 1

Progress:completed

Maintenance and Update Frequency:notPlanned

Data Currency Start Date:2021-05-25

Data Currency End Date:2021-06-25

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 (contains spatial data, maps and reports) via data.nt.gov.au/
Search for Risk to Biodiversity of the Wadeye Area, 2021.

You are licensed to use the geospatial products 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 the geospatial products.
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 Environment, Parks and Water Security. Copyright Northern Territory Government.


Data Quality

Lineage:The biodiversity values in this Risk to Biodiversity spatial dataset were compiled by the Flora and Fauna Division of this department from several sources;
- Wadeye Vegetation Community Mapping, scale 10k (Flora and Fauna Division, 2021)
- Grevillea myosodes - High density occurrence (Flora and Fauna Division, 2021)
- Grevillea myosodes - Land units 8a1, 8c2, scale 25k (NANGU_25, Rangelands Division, 2017)
- Grevillea myosodes - Land units 8a1, 8c2, scale 25k (NANGU_25 extension, Flora and Fauna Division, 2021)
- Land units with lower biodiversity value, scale 25k (NANGU_25, Rangelands Division, 2017)

Existing systematic land resource mapping (NANGU_25) was used to identify the land units in which the Near Threatened Grevillea myosodes occurrs; and as the basis of an assessment of the potential habitat for target species within the study area. Because the biodiversity study area covered an expanded footprint in comparison to the existing land resource mapping, additional mapping (NANGU_25 extension) was undertaken in conjunction with DEPWS Land Resource Assessment Branch using a similar approach. These areas were defined using the vegetation components for land units 8a1 and 8c. This allowed areas of potential habitat for the target species to be identified across the entire biodiversity study area. Bounding polygons were created to define areas with statistically significant clusters of records for the Near Threatened Grevillea myosodes.

The spatial data was compiled into the dataset, Wadeye Risk to Biodiversity. The final dataset and the original datasets are stored in an ESRI file geodatabase and available to access in a spatial data package. (see Access Constraint in this metadata record). The data source is noted in the spatial data in the attribute field: SOURCE.

Positional Accuracy:Various spatial datasets and scales were used to compile the final risk class. Refer to original datasets.

Attribute Accuracy:Field data (site information) described and classified according to national standards at the time of capture. 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.

Biodiversity values data are compiled into five possible Risk to Biodiversity classes (refer to Data Dictionary in this record). This survey defined 3 classes as follows;
Class 2. No significant value
Class 4. Sensitive and/or significant biodiversity
Class 5. High biodiversity value

Logical Consistency:na

Completeness:complete


Contacts

NameOrganisationPositionRolePhoneFaxEmail
Data Requests OfficerDepartment of Environment, Parks and Water SecurityGeospatial Services Branch (on behalf of department)distributordatarequests.depws@nt.gov.au

Data Dictionary

AttributeAttribute DescriptionPossible CodeCode Description
01. PROJECTProject name
02.BIORISKAlias: Risk to Biodiversity Class
Integer from 1 to 5.

Datasets from a range of sources were joined to create a Risk to Biodiversity Class ranked from 1 to 5, ranging from Nil Biodiversity Risk to High Biodiversity Risk.
The Risk to Biodiversity Class contains 3 parts referring to Description 1, 2 and 3. They are joined together for mapping display.
1(1) NIL (2) Highly modified (3) Land that has had significant alteration by land use, development, mining or infrastructure.
2(1) LOW (2) No significant biodiversity value (3) No significant values identified.
3(1) MITIGABLE (2) Apply land management strategies (3) Land that may provide habitat for broadly-occurring threatened species or other biodiversity values. Retention of a proportion of this habitat, for example through application of the NT Land Clearing Guidelines, may be required to protect biodiversity values.
4(1) MODERATE (2) Sensitive and/or significant biodiversity (3) Land containing sensitive or significant vegetation types 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 with high biodiversity value based on significant vegetation community type, and/or habitat for threatened species.
03.BIODESC1Alias: BioRisk - Description 1
Part 1 of the Biodiversity Risk Class description.
04. BIODESC2Alias: BioRisk - Description 2
Part 2 of the Biodiversity Risk Class description
05. BIODESC3Alias: BioRisk - Description 3
Part 3 of the Biodiversity Risk Class description.
06. SOURCEData source
Several datasets were compiled to create the Biodiversity Risk over the entire assessment area.
The biodiversity values in this Risk to Biodiversity spatial dataset were compiled by the Flora and Fauna Division of this department from several sources;
- Wadeye Vegetation Community Mapping, scale 10k (Flora and Fauna Division, 2021)
- Grevillea myosodes - High density occurrence (Flora and Fauna Division, 2021)
- Grevillea myosodes - Land units 8a1, 8c2, scale 25k (NANGU_25, Rangelands Division, 2017)
- Grevillea myosodes - Land units 8a1, 8c2, scale 25k (NANGU_25 extension, Flora and Fauna Division, 2021)
- Land units with lower biodiversity value, scale 25k (NANGU_25, Rangelands Division, 2017)
07. VEG_COMMVegetation Community
Data source is Vegetation Community Mapping 10k.
Vegetation community is based on dominant structural and floristic attributes.
08. C5_COMPLEXBiodiversity Risk Class 5 - Complex
Complex near Kudantiga and complex near Nangu outstation.
Values: 1 = yes and 0 = no.
09. C5_WETRFBiodiversity Risk Class 5 - Wet Rainforest
Values: 1 = yes and 0 = no.
10. C5_DRYRFBiodiversity Risk Class 5 - Dry Rainforest
Values: 1 = yes and 0 = no.
11. C4_SENSIGBiodiversity Risk Class 4 - Sensitive Significant Vegetation
Values: 1 = yes and 0 = no.
12. C4_WETLANDBiodiversity Risk Class 4 - Wetland
Values: 1 = yes and 0 = no.
13. C4_GDEBiodiversity Risk Class 4 - Groundwater Dependent Ecosystem is present within the map unit.
Values: 1 = yes and 0 = no.

GDEs are ecosystems that require access to groundwater to meet all or some of their water requirements on a permanent or intermittent basis (Richardson et al. 2011). Development can impact sensitive habitats beyond the immediate development footprint.
1Polygons have been identified as a high likelihood of having a Groundwater Dependent Ecosystem.
14. C2_CMYOSODBiodiversity Risk Class 2 - Grevillea myosodes
Values: 1 = yes and 0 = no.

Species are Near Threatened, TPWC Act.
15. LAND_UNITLand Unit label
Data source is Land Resources Nangu_25 (Burgess et al, 2017)
16. AREA_HAArea (ha)
The area for each polygon has been calculated.

Supplementary Information

BIBLIOGRAPHIC REFERENCE
Stokeld, D., Cuff N., Leiper I., Lewis, D., and Cowie, I. (2021)
Mapping the Future Project - Wadeye. Biodiversity Assessment of the Wadeye Area.
Technical Report 15/2021. Department of Environment, Parks and Water Security. Darwin, Northern Territory.

- Download report from NT Library. hdl.handle.net/10070/835783
- Download map product for this project. www.ntlis.nt.gov.au/mpds/get_file?file_id=8945

RELATED INFORMATION
------------------------------------
Wadeye Vegetation Community Mapping (10k)
Metadata record www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=C320D83F6871B653E0532144CD9B728A

Soil and Land Suitability Assessment for Irrigated Agriculture in the Nangu Area, Daly River/Port Keats Aboriginal Land Trust
Metadata record: www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=3F30879A06E2C7EEE050CD9B21441193

Northern Territory Flora Atlas
Metadata record: www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=6ADC8A7881CE6518E040CD9B21443386

Northern Territory Fauna Atlas
Metadata record: www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2DBCB771208B06B6E040CD9B0F274EFE

This record maintained using the NTLIS Metadata Tool