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Identification

Field Value

Title

Koala Habitat Suitability Model for North East NSW

Abstract

A habitat suitability model at a 250 m resolution for the Koala Phascolarctos cinereus in north-eastern New South Wales using ‘presence only’ records and MaxEnt modelling. Model extent was based on the extent of Crafti vegetation mapping for north east NSW. Substantial spatial clustering of records in coastal urban areas was reduced using a 2 km spatial filter and by modelling separately two sub-regions divided by the 500 m elevation contour. An average of 1086 occurrence records was used to develop models. A bias file was prepared that accounted for variable survey effort, including the concentration of Koala records along sealed and unsealed roads. A reduced set of 14 variables was used in model building. The models were evaluated using a test set of 25 % of the records, with a resulting good fit for each model, as measured by AUC. Frequency of wildfire, Australian Soil Classification, floristic mapping and elevation had the highest relative contribution to the model, whilst a number of other variables made minor contributions. The model was field validated at 65 ground-truth sites.

Resource locator

Data Quality Statement

Name: Data Quality Statement

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

DQS for Koala Habitat Suitability Model for North East NSW

Function: download

Koala predictive habitat model sub-region 1 - less than 500m elevation

Name: Koala predictive habitat model sub-region 1 - less than 500m elevation

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

ESRI GRID - Sub-region 1 (less than 500m elevation)

Function: download

Koala predictive habitat model sub-region 2 - more than 500m elevation

Name: Koala predictive habitat model sub-region 2 - more than 500m elevation

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

ESRI GRID - Sub-region 1 (less than 500m elevation)

Function: download

Koala predictive habitat models

Name: Koala predictive habitat models

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

ESRI ArcGIS Layer File

Function: download

Native Forestry Map Viewer

Name: Native Forestry Map Viewer

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

The EPA Native Forestry Map Viewer enables users to view our Koala and Threatened Ecological Community mapping without the need to access a GIS system. The map viewer allows users to perform searches to locate areas of interest and export resulting map views into various image file formats.

Function: download

Koala Habitat Suitability Model - Technical Report

Name: Koala Habitat Suitability Model - Technical Report

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

Technical Report

Function: download

Unique resource identifier

Code

8d8d8006-dd82-440a-8ad1-a02130138fdb

Presentation form

mapDigital

Edition

Version 1

Dataset language

eng

Metadata standard

Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Version

1.1

Dataset URI

https://datasets.seed.nsw.gov.au/dataset/8d8d8006-dd82-440a-8ad1-a02130138fdb

Purpose

To model variations in habitat suitability for Koalas in forests across tenure and at a fine resolution (250 m) using a range of environmental layers.

Status

completed

Spatial representation type

grid

Spatial reference system

Authority code

GDA94 / MGAZone 56

Code identifying the spatial reference system

28356

Spatial resolution

250 m

Classification of spatial data and services

Field Value

Topic category

Keywords

Field Value

Keyword set

keyword value

Ecology - habitat

Native Fauna

VEGETATION

Natural Forests

Originating controlled vocabulary

Title

ANZLIC Search Words

Reference date

2008-05-16

Geographic location

West bounding longitude

149.606543

East bounding longitude

153.457031

North bounding latitude

-35.650863

South bounding latitude

-29.082286

Vertical extent information

Minimum value

-100

Maximum value

2228

Coordinate reference system

Authority code

urn:ogc:def:cs:EPSG::

Code identifying the coordinate reference system

5711

Temporal extent

Begin position

1990-01-01

End position

N/A

Dataset reference date

Resource maintenance

Maintenance and update frequency

None

Contact info

Organisation name

Environment Protection Authority (EPA)

Responsible party role

pointOfContact

Quality and validity

Field Value

Lineage

The model was produced in 2015 from Koala records collated between 1990-2015.

Constraints related to access and use

Field Value

Limitations on public access

Data Quality

Field Value

Scope

dataset

Responsible organisations

Field Value

Responsible party

Contact position

Data Broker

Organisation name

Environment Protection Authority (EPA)

Responsible party role

pointOfContact

Metadata on metadata

Field Value

Metadata point of contact

Contact position

Data Broker

Organisation name

Environment Protection Authority (EPA)

Responsible party role

distributor

Metadata date

2017-02-06

Metadata language

eng