| Presence
of aloctonous species
The
first threat is the presence of aloctonous
(non-autoctonous) species. That is to say,
plants and animals that were accidentally
introduced by human beings. Among those
animals that were introduced and that have
established themselves on the island are
pigs, goats, cats, rats and the white tail
deer.
In their
search for food, the pigs root up the ground,
which is washed away by the heavy rainfall,
which in turn results in erosion. These
materials are carried towards the ocean,
which results in dirty water and sedimentation
on the coral ecosystems that surround the
island; this can lead to degradation and
death.
Rats eat all kinds of
organic matter, and on Cocos Island they
eat different species of flora and fauna,
endangering the incredible diversity of
the island, especially that of the endemic
species. The impact of the cats, goats and
deer has not been studied, but it is assumed
that their impact is less than that of the
other two species.
Presence of aloctonous species |
Illegal fishing |
Tourism |
Lack of resources
|