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In
1948, the Banteng cattle was found to have become a feral species.
While cattle are concentrated in the Northern Territory,
their hard hooves do major damage to the land by trampling the soft
ground and delicate native plants. Weeds then
grow, overtaking the soil and inhibiting native plants from growing back. In
order to provide better grazing for cattle, native plants were often
replaced by non-native
plants (such as the buffel grass).
Although cattle are
environmentally destructive, they have become
a major industry in Australia. Cattle such as the Bos Indicus and the
Bos Taurus are important cattle exports to countries
such as Europe, Canada, the Middle East and Asia (mainly southeast Asia).
Another hard-hoofed species, the Water Buffalo, has caused the greatest
damage to wetlands in northern Australia. The presence of the buffalo
has disrupted
the
land.
When
they walk, they
trample delicate wetland plants. They also crush native turtle and
crocodile
nests and eggs hidden in the vegetation. Buffalo also
severely damage the soil, causing
it to suffer rapid erosion.
Buffalos have no problems adapting to life in wetlands. They graze
and wallow on the edge of billabongs causing silting of waterways.
They cause
saltwater to seep into freshwater areas by breaking natural levee banks.
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