Nonrenewable Plants and Animals Due to Extinction.
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Transcript of Nonrenewable Plants and Animals Due to Extinction.
Nonrenewable Plants and Animals Due to Extinction
Passenger Pigeon early 1800s
existed in huge flocks (billions) all over North America.
over-hunting using increasingly effective
methods to catch both mature and juvenile birds
led to rapid extinction 1900
last bird recorded in the wild 1914
the last Passenger Pigeon died in the Cincinnati Zoo
Carolina Parakeet Extinction due to:
challenges to its diet large flocks of these birds fed on fruit
and grain farmers were protective of their crops
challenges to its habitat destruction of the birds’ forest
habitats bright set of feathers
sought after as hat accessories
The last of them, a captive specimen in the Cincinnati Zoo, died in 1918.
Toolache Wallaby Common in Australia until 1910 population slowly dwindled
hunting prized for its fur game trophy
predation by foxes habitat destruction
1924 few individuals lived in the wild
1982 numerous surveys failed to
observe any remaining specimens
species declared as extinct
Thick-billed Ground Dove was identified only from two
specimens collected from the Solomon Islands in 1882 and in 1927
Its decline is thought to be due to: new predators being
introduced into its habitat the destruction of forests in
which it lived after unsuccessful attempts to
find the bird, it was designated extinct status in 2005
St. Helena Olive flowering plant endemic to the island of
St. Helena 1977
only one tree was found in the wild a single cutting was successfully cultivated
the tree died in 1994 the survival of the species depended on a
handful of seedlings derived from the cultivated cutting that eventually perished
last of the species died in December 2003
factors responsible for its extinction: Deforestation over-grazing the tree’s self-incompatibility
Arunchal Hopea Tree small tree harvested
extensively for the construction of house posts in India
declared extinct in 1998
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