Environmental Assessment
Volume C-4.2
Slurry Pipeline
Fauna
Ambatovy Project
110
January 2006
impacts is predicted to be low for all species, the environmental consequence will
be greatest (moderate) for wide-ranging species where populations extend
outside the LSA.
Table 4.2-7 Residual Impact Classification for Fauna due to Direct Mortality
Taxon
Direction Magnitude Geographic
Extent
Duration
Reversibility Frequency
Environmental
Consequence
Issue: Direct Mortality from Site Clearing
rare species
negative
low
local
short-term
reversible
low
negligible
slow-moving or
sessile common
species
negative
low
local
short-term
reversible
low
negligible
wide-ranging
species
negative
low
regional
short-term
reversible
medium
low
other species
negative
low
local
short-term
reversible
low
negligible
Issue: Nuisance Fauna
native nuisance
species
negative
low
local
short-term
reversible
medium
negligible
other species
neutral
n/a
n/a
n/a
n/a
n/a
n/a
Issue: Vehicle-Fauna Collisions
rare terrestrial
species
negative
low
local
long-term
reversible
medium
low
slow-moving
common terrestrial
species
negative
low
local
long-term
reversible
medium
low
wide-ranging
species
negative
low
regional
long-term
reversible
medium
moderate
other species
negative
low
local
long-term
reversible
medium
low
Issue: Hunting/Collecting
rare species
negative
low
local
long-term
reversible
medium
low
common hunted
and collected
species
negative
low
local
long-term
reversible
medium
low
wide-ranging
species
negative
low
regional
long-term
reversible
medium
moderate
other species
neutral
n/a
n/a
n/a
n/a
n/a
n/a
n/a = Not applicable (neutral impacts not rated).
Prediction Confidence
Prediction confidence for direct mortality is medium. While the relative effects
can be assessed, and typical mortality rates can be estimated based on experience
from other such projects, it is difficult to determine the precise environmental
consequence due to these effects.
Monitoring
Monitoring will be conducted to help determine if mitigation is effective or if
adjustments must be made. The proponent will carry out a fauna monitoring
program that includes:
