Nonrenewable Plants and Animals Due to Extinction.

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Nonrenewable Plants and Animals Due to Extinction

Transcript of Nonrenewable Plants and Animals Due to Extinction.

Page 1: Nonrenewable Plants and Animals Due to Extinction.

Nonrenewable Plants and Animals Due to Extinction

Page 2: 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

Page 3: Nonrenewable Plants and Animals Due to Extinction.

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.

Page 4: Nonrenewable Plants and Animals Due to Extinction.

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

Page 5: Nonrenewable Plants and Animals Due to Extinction.

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

Page 6: Nonrenewable Plants and Animals Due to Extinction.

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

Page 7: Nonrenewable Plants and Animals Due to Extinction.

Arunchal Hopea Tree small tree harvested

extensively for the construction of house posts in India

declared extinct in 1998

Page 8: Nonrenewable Plants and Animals Due to Extinction.

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