Tag: threatened species
Questions Related to threatened species
A species restricted to a given area is
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Endemic species
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Allopatric species
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Sympatric species
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Sibling species
Endemic means a species which is native to a place and is not found anywhere else in the world. Endemic basically means indigenous. The more endemic species at a place more is the biodiversity of that place. For example, the Nilgiri tahr also known as Nilgiri Ibex is endemic to the Nilgiri Hills and some part of Western Ghats of Kerala.
Peculiar primitive animals found in Madagascar but absent in Africa are
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Elephants
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Lemurs
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Penguins
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Echidnas
Peculiar primitive animals found in Madagascar but absent in Africa are Lemurs. For example, Indri indri lemur also known as babakoto is the largest living lemur on Earth. It as a head-and-body length of about 64–72 cm (25–28 in) and a weight of between 6 to 9.5 kg (13 to 21 lb). It occurs in Madagascar. It plays an important part in the myths of the residents of Madagascar, and legends with various stories in existence accounting for its origin. According to IUCN, it is classified as a critically endangered species.
Islands have higher number of endemic species as they are separated from other land masses by
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Deserts
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Mountains
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Large expanses of water
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Valleys
Endemic species are species which are native to a place and are not found anywhere else. Islands have a higher number of such as they are separated from other land masses by large expanses of water. Communities in such islands are called as oceanic island communities. Human intervention is less because of the water and thus endemism is high.
Which is an endemic plant?
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Nepenthes khasiana
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Riccia discolor
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Vernonia cinerea
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Cynodon dactylon
Nepenthes khasiana is an endemic plant to India. It is the only species of pitcher plant which is endemic to our country. Endemic means a species which is native to a place and is not found anywhere else in the world. Endemic basically means indigenous. The more endemic species at a place more is the biodiversity of that place. For example, the Nilgiri tahr also known as Nilgiri Ibex is endemic to the Nilgiri Hills and some part of Western Ghats of Kerala. So, the correct answer is 'Nepenthes khasiana'.
An endemic taxon is one.
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Whose distribution is restricted to a small area
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Which is distributed widely
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Which is endangered
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Which is economically important
Approximate percentage of endemic flowering plants in India is
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23
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33
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53
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63
A) The correct answer is 33%.
Endemic species are
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rare species
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species localised in a specific region
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cosmopolitan in distribution
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critically endangered species
Crocodiles found in India are
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Crocodylus potostis and Crocodylus palusrris
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Crocodylus palustris and Gavialis gangeticus
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Gavialis gangeticus and Crocodylus porosus
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Crocodylus porosus, Crocodylus palustris and Gavialis gangeticus
The Indian wild ass (Asinus hemionus) is found in
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Garhwal Himalayas
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Plateau of Ladakh
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Thar deser
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Rann of Kutch
Incorrect match for endemism amongst species is
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India- 47%
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Australia- 80%
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Hawaii- 82%
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None of the above
Endemic species are restricted to a given area for various reasons like some special requirements for optimum growth, soil and other environmental conditions etc. India ranks 47%, Australia - 80% and Hawaii- 82%.