Environmental Assessment
Volume C-4.2
Slurry Pipeline
Fauna
Ambatovy Project
108
January 2006
Mitigation
Design Elements
•
The pipeline route is mainly (about 95%) through previously disturbed
or degraded areas. The pipeline route avoids primary zonal forest
including Mantadia National Park and wetlands of biological value,
particularly the Torotorofotsy Wetlands. As well, access and
maintenance roads will be sited to avoid primary habitats as much as
possible. No maintenance road will be built through the Mantadia-
Zahamena Conservation Corridor, between the two national parks.
Mitigation Techniques
•
In the few areas of natural or degraded forest to be disturbed, selected
rare fauna that do not move ahead of construction will be relocated or
collected before site clearing.
•
A waste management plan will be implemented to eliminate attractants
for potential nuisance species.
•
A nuisance fauna management plan will be implemented, including
trapping and removal.
•
A worker training program will be implemented, including a no hunting
policy.
•
Signs will be posted and speed limits enforced.
Impact Analysis
Site Clearing
Based on an average width of 50 m, site clearing for the proposed pipeline route
will result 936 ha of new clearings and disturbances. Most (800 ha) of the
impacts will be in existing clearings and tavy so the risk to forest-dwelling
species will be limited to key habitats. Degraded primary, primary and
transitional forests make up the majority of the impacted key habitats with a
combined loss of 81 ha (see Table 4.2-2). Slow moving and less mobile species
(e.g., amphibians, reptiles, small nocturnal lemurs) and juvenile animals
occupying these habitats are most at risk for mortality. As part of the regional
planning initiative to restore connectivity along the Mantadia-Zahamena corridor,
previously disturbed habitats along the pipeline right-of-way will be reclaimed
with the end-goal of the regrowth of primary zonal forest. It is anticipated that
faunal populations in these areas will increase and, over time, compensate for any
losses due to site clearing.
Residual Impact Classification
Residual impacts as a result of indirect effects are provided in Table 4.2-7.
