3. “Exotic Species is a species that is
deliberately or accidentaly moved
from its home to other community
and permanently insinuates itself
into a new community”
7. In 1800s
British settlers in Australlia began to import animals from
Europe.
In 1859
A northern Australian imported 2 dozens or European
rabbit (Oryctolagus cuniculus) which is good for food and
hunting with NO natural predators.
8. In 1865
After killing 20,000 rabbits still left 20,000 more.
NOW
There are 200 to 300 million rabbits in the southern part of
Australlia
9. The Effect of the European Rabbit:
• Displace livestocks
• Overgraze grasslands
• Remove bark from the trees and
shrubs during drought
• Grassland & Shrublands Deserts
11. Way to Control:
• Shot and poison the rabbits
• Their warren is buried,
fumigated, and dynamited
Effect:
• Reduce 70% of the population
• BUT they reproduce more.
12. Australlian Government makes a 2000-mile-long fence to
protect western Australlia
BUT
The rabbit pass the fence before it was finished
13. In 1951
Government introduced myxoma
virus that cause myxomtosis
towards the rabbit.
It was succesful at first BUT the
rabbit grew resistance to it.
14. In 1991
On an uninhabited
island in Spencer
Golf, American
researcher released
rabbits that injected
with a calcivirus , the
effect cause the
rabbit died quickly
relatively painlessly
from blood cuts in
their lungs , hearts,
and kidney.
15. In 1995
The test virus
escaped from
the island
and cause 80
% - 95 % of
adult rabbits
died.
They still questioned whether this virus has any harm to other
things than the rabbit.
17. KUDZU IN UNITED STATES
Kudzu (Pueraria lobata) was imported from Japan
to the United States .
It is a well behaved legume with a well developed
root systems , use to control erosion on hills and
embankments.
However, NOTHING can stop its growth.
18. •Japanese firm is constructing a kudzu farm and processing
plant in Alabama to export the starch
•Reduce logging operations
•Become an alternative source for paper
ADVANTAGES
