Title

Victorian Bioregions - Mapped at 1:100,000 (version 3.0 - May2004) 

Alternate title

VBIOREG100 

Resource Type

Dataset  

Purpose

Biogeographic regions (bioregions) capture the patterns of ecological characteristics in the landscape, providing a natural framework for recognising and responding to biodiversity values. As bioregions reflect underlying environmental features, they can also be related to the patterns of use of land and sea, and thus can be used to identify the relationship between many natural resource based activities and biodiversity assets. Bioregions identified in Victoria form part of the national framework for the terrestrial environment, the Interim Biogeographic Regionalisation for Australia (IBRA). Of the eighty IBRA regions delineated across Australia, eleven regions occur in Victoria with eight of these shared with adjacent States. The broad scale that is appropriate for national purposes does not adequately discriminate between areas that are meaningful at the Statewide scale and further refinement has delineated 28 Victorian bioregions. Victorian bioregions are equivalent to the Victorian part of IBRA subregions. The layer will primarily support flora and fauna biodiveristy evaluations and management. The layer has been used to subdivide extant EVCs for the purposes of determining a bioregional conservation status rating for EVCs. The dataset incorporates 6 new Victorian Bioregions to those identified in the VBIOREGION250 dataset. 

Credit

Mr David Parkes, Parks, Flora and Fauna, NRE Mr Stephen Farell, Spatial Vision 

Supplemental Information

Relationship to other Datasets: The Bioregions identified in this dataset are directly related to the Interim Biogeographic Regionalisation for Australia (IBRA) units identified in the IBRA500 dataset. The VBIOREG100 dataset represents a more detailed interpretation of the 1:250,000 VBIOREGION250 bioregional boundaries, and effectively supersedes this dataset. The boundaries are aligned with patterns represented in pre-1750 EVC mapping at 1:100,000. The dataset uses the 1:100,000 state boundary from VIC100. The dataset has been used in combination with EVC_CMP100 to create the EVC_BCS100 dataset which identifies the Bioregional Conservation Status of EVCs. Current Design Issues: The layer design supports a Victorian Bioregion reference number, code and name, and the corresponding IBRA category. The dataset also incorporates a land type item in line with the VIC100 dataset to differentiate land areas from significant water bodies. Future Design Issues: None at this stage. Related Documents: An Interim Biogeographic Regionalisation for Australia: a framework for establishing the national system of reserves, Version 4. - R. Thackway and I.D.Cresswell (1995) (Eds.) Austalian Nature Conservation Agency, Canberra.,Victoria's Native Vegetation Management - A Framework for Action.. - Department of Natural Resources and Environment, 2002 

Status

Completed  

Time period

2002-01-012002-06-30 

Spatial representation type

Vector  

Horizontal Accuracy

100m  

Code

4283 

 

Maintenance and update frequency

As needed  

Topic category

• Biota
• Boundaries

Use limitation

unrestricted 

Classification

Unclassified  

Statement

Dataset Source: This dataset has been created from a review of the earlier 1:250,000 dataset (VBIOREGION250) and an expert interpretation of pre-1750 mapping by Mr David Parkes, Flora and Fauna, NRE with the support of other NRE staff. The dataset has been cross referenced with the National IBRA dataset and bioregions identified in both NSW and South Australia and will be incorporated in the next version of the national dataset where relevant. Boundaries are generally aligned with patterns represented in pre-1750 EVC mapping at 1:100,000 but are not exactly aligned with any boundaries in this mapping. Dataset Originality: Primary 

Description

Collection Method: Field Notes Interpretation of Land system and pre-1750 EVC data 

Description

No spatial dataset processing has been undertaken. 

Classification

Unclassified