Environmental Assessment
Volume B-4.1
Mine
Flora
Ambatovy Project
188
January 2006
Table 4.1-9 Endemic Species of Concern in Priority Categories 1a, 1b, 2a and 2b
Found Within the Mine Site Project Area
Priority
Category
Description
Number of
Species
1A
rare or restricted distribution and only found within the
mine site footprint
27
1B
inadequate sampling but only found within the mine site
footprint
2
2A
rare or restricted distribution and only found within the
mine LSA, outside of the footprint
37
2B
inadequate sampling but only found within the mine LSA,
outside of the footprint
3
4.1.6.5 Impact Analysis
Residual Impacts
Residual Impacts to Species Loss
As stated above, without mitigation to deal with uncertainties about the true
distribution of plant species only known to occur within the mine footprint or
mine LSA, species extirpation or extinction remains a high risk. As a result the
proponent’s mitigations are aimed to ensure that viable populations of all
species
of concern
are secure during construction, operations and following closure of
the mine, resulting in a neutral effect (Table 4.1-10).
Table 4.1-10 Residual Impact Classification for Loss of Plant Species
Component
Direction
Magnitude
Geographic
Extent
Duration
Reversibility Frequency
Environmental
Consequence
plant species
neutral
n/a
n/a
n/a
n/a
n/a
n/a
n/a = Not applicable (neutral impacts not classified)
Several mitigations applicable for the protection and enhancement of vulnerable
species have been listed above. Below, additional mitigation details are provided
that will help ensure
species of concern
are either de-listed or secure.
Identification and Protection of an Azonal Off-Site Azonal Conservation
Area
A potential azonal off-site conservation area has been identified from an aerial
reconnaissance and ground-level survey conducted north of the mine site
(i.e., Ankera). The next step is to conduct flora surveys identifying Priority 1 or
