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नवीनतम संदेश 13
2021-05-29 04:52:43
BIӨDIVΣЯƧƬIY ΛПD ᄃӨПƧΣЯVΛƬIӨП
𝐐𝐔𝐈𝐂𝐊 𝐑𝐄𝐕𝐈𝐒𝐈𝐎𝐍 𝐍𝐎𝐓𝐄𝐒
There are about 20,000 species of ants, 3,00,000 species of beetles, 28,000 species of fishes & 20,000 species of orchids
Term biodiversity was popularised by Edward wilson
India has 50,000 genetically different strains of rice and 1000 varieties of mango
Acc to IUCN (2004), No.of species discovered and described range about 1.5 million
Robert may estimate - total no.of species is around 7 million
More than 70% of species discovered are animals
More than 70% of animals are insects
Plants constitute not more than 22% of total species
Total no.of species of fungi is more than combined total of fishes, amphibians, reptiles and mammals
India occupy 2.4% of total land surface but they contribute 8.1% of total biodiversity
There are about 45,000 species of plants and twice as many animals are discovered in india
Acc to robert estimate...only 22% of total no.of species have been discovered
There are 1,00,000 plant species and more than 3,00,000 animals species are yet to be discovered in india
Columbia has 1400 species of birds...newyork - 105 species of birds, Greenland - 56 species
India has 1200 species of birds Amazonian rain forest in south
america has 1300 species of birds, 40000 species of plants, 427 amphibians, 427 mammals, 378 reptiles, more thab 1,25,000 invertebrates
The colonisation of tropical pacific island by humans has led to the extinction of 2000 species of native birds
Over 784 species have extincted in past 500 years ( 359 invertebrates, 338 vertebrates & 87 plants )
In last 20 years, 27 species disappeared
Around 15,500 species are facing threat of extinction
32% amphibians, 31% gymnosperms, 23% mammals, & 12% birds are facing threat of extinction
341 views▄︻̷ ┻ ═━一丂卄丨乙ㄩҜ卂꠵ࣩࣩࣩࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧࣧ, 01:52
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