biota
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This layer summarises VBA fauna records against a standard grid of 10 degrees longitude/latitude (GDA94). Any VBA taxa record with its centre in a cell is counted as a record for that cell. The number of times a taxon has been recorded in a cell is collated in the RECORDS column. The first date and last date that a taxon has been recorded in a cell are also summarised. VBA data summarised against 5 and 1 minute grids are also available in related datasets. VBA records with a spatial accuracy worse than +/- 9 km are excluded from this layer.
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This layer represents the modelled extent of Ecological Vegetation Classes in 1750 (EVC's as described by Biodiversity and Ecosystem Services Division) at scales ranging from 1:25,000 to 1:100,000 It is the master EVC dataset from which NV1750_EVCBCS and NV2005_EVCBCS are derived.
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This replaces NVR2013_LOCRISK_V2. This dataset describes the native vegetation location category for all land in Victoria for the purposes in the native vegetation removal regulations. Location category is calculated from a set of spatial models describing the importance of suitable habitat within the current extent of native vegetation for many rare or threatened species, and the location of an endangered Ecological Vegetation Class or sensitive coast or wetland area.
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This dataset is a simplified and generalised version of the NV2005_EXTENT dataset. The parameters of the simplification and generalisation have been set to produce a a product suitable for mapping at scales between 1:30000 and 1:400000
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This layer contains modelled old-growth forest which has been updated with forest harvesting and fire. The base layer used in western part of the state is og100 which was updated by lastburnt100, lastlog25 and boundaries of the 2006 Grampians fire from ECC. The base layer for the eastern part of the state is mog2003 updated by lastlog25 & lastburnt100. The old-growth forests in the base layers were identified to meet the Victorian definition of old-gwoth forest based on a set of modelling criteria, rules and input datasets. The data is not reliable at scales less than 1:100,000. Old-growth polygons have not been confirmed through field checking and the reliability of modelled old-groth stands have not been assessed.
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Obsolete data, replaced by NVR2013_SBS_V3. The NaturePrint Strategic Biodiversity Values dataset is an objective, comprehensive and spatially explicit view of strategic biodiversity values. This dataset does more than just recognise the presence of significant biodiversity characteristics at each site, it identifies the value of a site relative to the value of all other Victorian locations. DEPI's NaturePrint initiative coordinates the development and application of datasets and techniques to enable this view. Ideally, these analyses would be based on complete information on all biodiversity and relevant ecological considerations at all places in Victoria. Given this level of information is not available, the NaturePrint approach relies on robust modelling and extrapolation from available primary data.
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Obsolete. NVIM data. The NaturePrint Strategic Biodiversity Values dataset is an objective, comprehensive and spatially explicit view of strategic biodiversity values. This dataset does more than just recognise the presence of significant biodiversity characteristics at each site, it identifies the value of a site relative to the value of all other Victorian locations. DEPI's NaturePrint initiative coordinates the development and application of datasets and techniques to enable this view. Ideally, these analyses would be based on complete information on all biodiversity and relevant ecological considerations at all places in Victoria. Given this level of information is not available, the NaturePrint approach relies on robust modelling and extrapolation from available primary data. For use on the native vegetation permitted clearing regulations, the Strategic Biodiversity Value ranking is converted to a score that enables the strategic importance of different locations to be directly compared in numerical terms (e.g. such that a location with a score of 0.4 can be considered to be twice the strategic value of a location with a score of 0.2). Version 2A of this data set is used to determine the Strategic Biodiversity Value of potential loss for the purposes of the permitted clearing regulations.
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This dataset has been developed for use by local government and Department of Sustainability and Environment (DSE) staff who are assessing planning permit applications to clear native vegetation that are classified as low impact. Site-based data is generally not available for permit applications assessed using the low impact pathway. This layer allows a local government or DSE officer to determine the default conservation significance of remnant patches without the need to collect site-based data. The data layer has been created using modelled vegetation type and quality, available best and remaining habitat models and spatial information on other attributes. This dataset does not reflect any requirements of the Flora and Fauna Guarantee Act 1988 or Commonwealth Environment Protection and Biodiversity Conservation Act 1999. This dataset has been developed for a particular use scenario.
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Contains polygon features delineating and describing Regional Forestry Agreement boundaries. All arc features are identified and coded according to the AS2482 standard.
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Obsolete. Site condition aims to reflect three components - composition, structure and function. In practice, condition is measured through the prism of lifeforms, their cover and species diversity. Measuring the condition of native vegetation recognises that most remaining native vegetation in Victoria has been subject to some disturbances, such as historical land use, grazing or weed and pest animal invasion, and is subsequently reduced in condition; vegetation types vary spatially and temporally; circumstances fluctuate (e.g. seasons, natural disturbance events); degradation and rehabilitation occur; and naturalness is valued.