Biodiversity Flashcards
Species of ants
> 20,000 (twenty thousand)
Species of beetles
> 3,00,00 (three lakh)
Species of fishes
> 28,000 (twenty-eight thousand)
Species of orchids
> 20,000 (twenty thousand)
Varieties of Mangoes
> 1,000 (one thousand)
Strains of Rice
> 50,000 (fifty thousand)
Species Diversity
Western Ghats Amphibians > Eastern Ghats Amphibians
Total no. of plants and animals described so far according to IUCN (2004)
1.5 Million
Robert May global species diversity
7 Million
% of animals
70%
% of plants
22%
% of world area occupied by India
2.4%
% of world’s biodiversity from india
8.1%
No. of plant species in India to be discovered
1,00,000 (one lakh)
No. of animals species in India to be discovered
3,00,000 (three lakh)
No. of birds in Colombia
1,400
No. of species of birds in New York
105
No. of species of birds in Greenland
56
No. of species of birds in India
> 1,200
Equador has up to ____ times as many species of ____ as a forest of equal area in a temperate region like the Midwest of USA
10 times
Vascular Plants
Species of plants in Amazon Rainforest
40,000
Species of fishes in Amazon Rainforest
3,000
Species of birds in Amazon Rainforest
1,300
Species of Mammals & Amphibians in Amazon Rainforest
427
Species of Reptiles in Amazon Rainforest
378
No. of Invertebrates in Amazon Rainforest
> 1,25,000
No. of species of insects waiting to be discovered and named from Amazon Rainforest
2 Million
Normal Range of Regression Coefficient (Z)
0.1 to 0.2
Value of Regression Coefficient for very large areas like continents
0.6 to 1.2
Value of Regression Coefficient for frugivorous birds & mammals in the tropical forests of different continents
1.15
Colonisation of tropical Pacific Islands by humans led to extinction of
> 2,000 species of native birds (two thousand)
IUCN Red List 2004 documents extinction of _____ in the last 500 years
784 Species
338 vertebrates
359 invertebrates
87 plants
Number of species that disappeared in the last 20 (twenty) years
27 species (twenty-seven)
Dodo was from
Mauritius
Quagga was from
Africa
Thylacine was from
Australia
Steller’s Sea Cow was from
Russia
The 3 subspecies of Tigers that recently went extinct were from
Bali
Javan
Caspian
No. of species world-wide facing the threat of extinction
15,500 species
% of bird species faces threat of extinction
12%
% of mammal species facing threat of extinction
23%
% of amphibian species facing threat of extinction
32%
% of gymnosperm species facing threat of extinction
31%
Tropical Rainforests used to cover ___ % of earth’s land surface, but now they cover _____%
used to cover 14%
now cover less than 6%
Which species led to extinction in the last 500 years due to Over-exploitation
Steller’s Sea Cow
Passenger Pigeon
% of drugs sold in market worldwide derived from plants
25%
No. of species of plants that contribute to the traditional medicines used by native people around the world
25,000 (Twenty-five thousand)
% pf Earth’s O2 produced by photosynthesis of Amazon Rainforest
20%
Total no. of biodiversity hotspots
34
Hotspots of India
Western Ghats & Sri Lanka
Indo-Burma
Himalayas
% of earth’s land area put together by biodiversity hotspots
2%
Protection of hotspots can reduce ongoing mass extinctions by almost
30%
No. of Biospheres in India
14
No. of National parks in India
90
No. of Wildlife Sanctuaries in India
448
Earth Summit (CoBD) venue and date
Rio de Janeiro
1992
World Summit on Sustainable Development (WSSD) venue and date
Johannesburg, South Africa
2002
190 countries pledged their commitment to achieve a significant reduction in the current rate of biodiversity loss at global, regional and local levels by
2010
No. of Mega Diversity Countries in the world
12
No. of species of plants in India
45,000
No. of species of animals in India
90,000
Total no. of species on earth still waiting to be discovered and named
6 Million
