Biodiversity and Conservation Flashcards
Total biodiversity hotspots in the world
34
Biodiversity hotspots in India
Western Ghats– Sri Lanka
Indo–Burma
Himalaya
Biodiversity hotspots cover less than ___ % of the Earth’s land area. They can reduce mass extinctions by ___%
2
30
No. of
biosphere reserves
national parks
wildlife sanctuaries
14
90
448
Places in India where sacred groves are found
Khasi and Jaintia hills (Meghalaya) Aravalli hills (Rajasthan) Sarguja, Chanda and Bastar (Madhya Pradesh) Western Ghats (Karnataka and Maharashtra)
First World Summit was held in ______ in _______
Follow up World Summit was held in ________ in _______
Rio de Janeiro, 1992
Johannesburg, 2002
In the follow up World Summit, ____ countries pledged their commitment to achieve significant reduction in current rate of biodiversity by _____
190
2010
More than ____% of the drugs currently sold in the market worldwide are derived from plants and _______ species of plants contribute to the traditional medicine used by native peoples around the world.
25%
25000
Amazon produces ____% of the total oxygen
20
The colonization of the Pacific Islands have led to the extinction of more than _____ species of native birds
2000
In the last 500 years, ______ species of vertebrates, ______ species of invertebrates and _____ species of plants have gone extinct
338
359
87
In the last twenty years, ____ species have gone extinct
27
more than ________ species world-wide are facing the threat of extinction
15,500
Presently, ___ per cent of all bird species, ___ per cent of all mammal species,____ per cent of all amphibian species and ____ per cent of all gymnosperm species in the world
face the threat of extinction.
12
23
32
31
____________ is the most important
cause driving animals and plants to extinction.
Habitat loss and fragmentation
Once covering more than ___ %, rainforests now cover only __%
14
6
Amazon is being cut down to cultivate
Soya beans
Animals went extinct due to over exploitation
Stellers sea cow
Passenger pigeon
Nile perch introduced to lake _______ led to the extinction of more than _____ species of _______ fish
Victoria
200
Cichlid
Catfish posing threat to indian catfishes
Clarias gariepinus