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Identification

Field Value

Title

Biliirrgan Glossy Black-Cockatoo habitat mapping

Abstract

Mapping of Glossy Black-Cockatoo habitat in the Biliirrgan project area (the Nambucca, Bellingen, Coffs and Clarence Local Government Areas in northern NSW). The mapping for Nambucca, Bellingen and Clarence LGAs is derived from the State Vegetation Type Map (SVTM, release C1.1M1) using Plant Community Type data; the mapping for Coffs LGA is derived from the fine-scale mapping of the Coffs Harbour Local Government Area (VIS_ID 4189) using vegetation community data. PCTs/vegetation communities were classified as Glossy Black-Cockatoo habitat if either Allocasuarina torulosa (Forest Oak) or Allocasuarina littoralis (Black She-oak) had a mean cover-abundance score of at least 2 (equating to at least 5 plants, and at least 5% cover, in a 20 m by 20 m plot) AND the frequency (i.e. the proportion of flora survey plots in which a species was recorded) of Forest Oak and Black She-oak in that community summed to at least 10%. Habitat was subdivided into classes (e.g. littoralis_High) based on the frequency and cover abundance of the most frequent Allocasuarina species. Sites from all habitat classes were surveyed in the field, and the density of Allocasuarina cones was estimated, allowing the calculation of the mean number of Allocasuarina cones per hectare for each habitat class.

Resource locator

Data Quality Statement

Name: Data Quality Statement

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

Description:

Data quality statement for Biliirrgan Glossy Black-Cockatoo habitat mapping

Function: download

Download Package

Name: Download Package

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

Description:

Data (Shapefile)

Function: download

Unique resource identifier

Code

7109b8c8-792d-4fc8-bdc2-776cad439f86

Presentation form

Map digital

Edition

Version 1

Dataset language

English

Metadata standard

Name

ISO 19115

Edition

2016

Dataset URI

https://datasets.seed.nsw.gov.au/dataset/7109b8c8-792d-4fc8-bdc2-776cad439f86

Purpose

Enabling informed planning and management decisions about Glossy Black-Cockatoo habitat

Status

On going

Spatial representation

Type

vector

Spatial reference system

Code identifying the spatial reference system

4283

Equivalent scale

1:None

Additional information source

The Biliirrgan Glossy Black-Cockatoo habitat mapping was derived from the best available existing vegetation mapping for each Local Government Area. However, the existing mapping was not designed specifically for recording Allocasuarina densities, and was done at a scale which means that there are often discrepancies between mapped vegetation communities and the vegetation on the ground. Also, Allocasuarinas are not evenly distributed across a community, but tend to be clumped as a result of factors such as fire history. Therefore, even where the underlying vegetation mapping is correct, Allocasuarina densities may differ substantially from the average for a given vegetation community.

Field investigations found that the Biliirrgan Glossy Black-Cockatoo habitat mapping was reliable at larger scales: for instance, landscapes where there are large areas of mapped high quality Glossy Black-Cockatoo habitat did indeed tend to have large areas of high quality habitat. However, because of the limitations outlined above, at finer scales the mapping is less reliable – e.g. Allocasuarinas may be completely absent from a site mapped as High or Very High quality habitat, or may occur in high densities at sites not mapped as habitat at all. At finer scales, the map should not be assumed to be a true representation of habitat on ground.

Classification of spatial data and services

Field Value

Topic category

Keywords

Field Value

Keyword set

keyword value

FAUNA-Vertebrates

ECOLOGY-Habitat

VEGETATION-Floristic

Originating controlled vocabulary

Title

ANZLIC Search Words

Reference date

2008-05-16

Geographic location

West bounding longitude

152.13

East bounding longitude

153.41

North bounding latitude

-30.95

South bounding latitude

-28.95

NSW Place Name

Coffs Harbour

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

2023-07-24

End position

N/A

Dataset reference date

Resource maintenance

Maintenance and update frequency

As needed

Contact info

Contact position

Data Broker

Organisation name

NSW Department of Climate Change, Energy, the Environment and Water

Telephone number

131555

Email address

data.broker@environment.nsw.gov.au

Web address

https://www.nsw.gov.au/departments-and-agencies/dcceew

Responsible party role

pointOfContact

Quality and validity

Field Value

Lineage

The mapping for Nambucca, Bellingen and Clarence LGAs is derived from the State Vegetation Type Map (SVTM, release C1.1M1) using Plant Community Type data; the mapping for Coffs LGA is derived from the fine-scale mapping of the Coffs Harbour Local Government Area (VIS_ID 4189) using vegetation community data. PCTs/vegetation communities were classified as Glossy Black-Cockatoo habitat if either Allocasuarina torulosa (Forest Oak) or Allocasuarina littoralis (Black She-oak) had a mean cover-abundance score of at least 2 (equating to at least 5 plants, and at least 5% cover, in a 20 m by 20 m plot) AND the frequency (i.e. the proportion of flora survey plots in which a species was recorded) of Forest Oak and Black She-oak in that community summed to at least 10%. Habitat was subdivided into classes (e.g. littoralis_High) based on the frequency and cover abundance of the most frequent Allocasuarina species, as follows:

torulosa_Mod: dominant (most frequent) Allocasuarina is Allocasuarina torulosa,summed Allocasuarina frequency is 10%-55%, mean cover-abundance is 2 or greater (equating to at least 5 plants, and at least 5% cover) torulosa_High: dominant (most frequent) Allocasuarina is Allocasuarina torulosa,summed Allocasuarina frequency is >55%, mean cover-abundance is 2 or greater (equating to at least 5 plants, and at least 5% cover) littoralis_Mod: dominant (most frequent) Allocasuarina is Allocasuarina littoralis; summed Allocasuarina frequency is 10%-55%; mean cover-abundance is 2 or greater (equating to at least 5 plants, and at least 5% cover) littoralis_High: dominant (most frequent) Allocasuarina is Allocasuarina littoralis; summed Allocasuarina frequency is >55%; mean cover-abundance is 2 or 3 (equating to at least 5 plants, and 5%-50% cover) littoralis_VeryHigh: dominant (most frequent) Allocasuarina is Allocasuarina littoralis; summed Allocasuarina frequency is >55%; mean cover-abundance is 4 or greater (equating to at least 5 plants, and >50% cover)

A total of 150 sites were surveyed in the field, and the density of Allocasuarina cones was estimated at each site, allowing the calculation of the mean number of Allocasuarina cones per hectare for each habitat class.

The Biliirrgan Glossy Black-Cockatoo habitat mapping was derived from the best available existing vegetation mapping for each Local Government Area. However, the existing mapping was not designed specifically for recording Allocasuarina densities, and was done at a scale which means that there are often discrepancies between mapped vegetation communities and the vegetation on the ground. Also, Allocasuarinas are not evenly distributed across a community, but tend to be clumped as a result of factors such as fire history. Therefore, even where the underlying vegetation mapping is correct, Allocasuarina densities may differ substantially from the average for a given vegetation community.

Field investigations found that the Biliirrgan Glossy Black-Cockatoo habitat mapping was reliable at larger scales: for instance, landscapes where there are large areas of mapped high quality Glossy Black-Cockatoo habitat did indeed tend to have large areas of high quality habitat. However, because of the limitations outlined above, at finer scales the mapping is less reliable – e.g. Allocasuarinas may be completely absent from a site mapped as High or Very High quality habitat, or may occur in high densities at sites not mapped as habitat at all. At finer scales, the map should not be assumed to be a true representation of habitat on ground.

Constraints related to access and use

Field Value

Limitations on public access

Responsible organisations

Field Value

Responsible party

Contact position

Data Broker

Organisation name

NSW Department of Climate Change, Energy, the Environment and Water

Telephone number

131555

Email address

data.broker@environment.nsw.gov.au

Web address

https://www.nsw.gov.au/departments-and-agencies/dcceew

Responsible party role

pointOfContact

Metadata on metadata

Field Value

Metadata point of contact

Contact position

Data Broker

Organisation name

NSW Department of Climate Change, Energy, the Environment and Water

Telephone number

131555

Email address

data.broker@environment.nsw.gov.au

Web address

https://www.nsw.gov.au/departments-and-agencies/dcceew

Responsible party role

pointOfContact

Metadata date

2024-02-26T12:49:21.677174

Metadata language