I second Dr. Rauf Ali's statement, Mainland biogeography and its dynamics are
significantly different from Island biogeography. Introduced exotics have had a
precedent of playing havoc on the endemic populations.
Hastily drawn govt. plans should be debated, before implementation.. How many of
us here know that the giant african snail found ubiquitously in the gardens of
port blair - was actually a introduction during the brief Japanese Occupation
and was meant to be a cheap protein supplement for the occupying troops - the
japanese have left but the snails remain. To be brief - mainland species occupy
different niches - when introduced to islands - they tend to displace island
species occupying these niches in the islands and since mainland species have
had to evolve more competitively, its all the more easier to displace the
endemics. In worst case scenarios - they start preying on endemics - which have
hitherto have had no competition, or minimal competition till date.

With Regards,

Amlan Dutta
Researcher,



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