Biodiversity And Conservation, loss of biodiversity Flashcards

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0
Q

Acc to IUCN red list 2004, no of extinct species in past 500 years is

A

784

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1
Q

Colonisation of tropical pacific islands has led to

A

Extinction of 2000 bird species

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2
Q

No of extinct species of vertebrates

A

338

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3
Q

No of extinct species of invertebrates

A

359 species

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4
Q

No of extinct species of plants

A

87

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5
Q

Extinction from Mauritius

A

Dodo

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6
Q

Extinction from Africa

A

Quagga

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7
Q

Extinction from Australia

A

Thylacine

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8
Q

Extinction from Russia

A

Stellar sea cow

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9
Q

Name the extinct subspecies of tigers

A

Bali
Javan
Caspian

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10
Q

No of species that have disappeared in last 20 years

A

27

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11
Q

No of species facing threat of extinction

A

15,000

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12
Q

Most vulnerable species to extinction

A

Amphibians

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13
Q

Threat of extinction - bird

A

12%

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14
Q

Threat of extinction amphibians

A

32%

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15
Q

Threat of extinction gymnosperms

A

31%

16
Q

Threat of extinction mammals

A

22%

17
Q

Current species extinction rate

A

100-1000 times faster compared to presumably era