20517 App M.pdf [As Published] · 132007.1259

SCANLON PROPERTY GROUP &

Ecological Assessment :
natural solutions

environmental consultants

Draft Report

2.2.8 Biodiversity Assessment and Mapping Methodology (BAMM)

The BAMM classifies areas (areas based on RE mapping) into one of three levels of
Biodiversity significance: State, Regional, and Local or Other Values.

All areas within the site are rated as State significance. This means that the areas are
assessed as being significant for biodiversity at the bioregional or state scales. This rating also
includes areas assessed by other studies / processes as being significant at national or
international scales.

Seven diagnostic criteria are used to initially assess the Biodiversity Significance of areas:

1. Habitat for EVR Taxa (Criteria A) — this criterion brings together information on
Endangered, Vulnerable, and Rare (EVR) taxa using buffering of recorded sites in the
absence of Habitat Suitability Maps (HSM) for species. HSMs are gradually being
developed and will progressively replace point records of species.

2. Ecosystem Value (Criteria B) — this criterion combines a number of elements including
the Biodiversity Status of Regional Ecosystems (REs), the presence of poorly
conserved REs, the presence of significant wetlands, and areas of national importance
such as World Heritage Areas and RAMSAR sites (Note: B1=regional assessment;
B2=sub-regional assessment).

3. Tract Size (Criteria C) — this criterion is a measure of the relative size of tracts of
vegetation in the landscape.

4. Relative Size of REs (Criteria D) — this criterion classifies the relative size of each
examples of a RE. Patches are compared with all other occurrences of the same RE
(Note: D1=regional assessment; D2=sub-regional assessment).

5. Condition (Criteria E) — this criterion represents the quality of remnants judged by the
extent to which they resemble their natural condition.

6. Ecosystem Diversity (Criteria F) - this criterion reflects the degree to which REs are
‘packed’ within an area. That is, an area with high Ecosystem Diversity will have
relatively many REs and ecotones.

7. Context and Condition (Criteria G) - this criterion represents the extent to which
Remnant Unit incorporates, borders or buffers areas such as significant wetlands,
endangered ecosystems, and the degree to which a Remnant Unit is connected to other
vegetation.

For each area, each diagnostic criterion is allocated a standard rating of LOW, MEDIUM,
HIGH, or VERY HIGH.

The following table summarises the diagnostic criterion ratings for each of the areas within the
subject site, shown in Figure 2.

 

June 2007 (10 )

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