Coined by Walter G. Rosen

International Union for Conservation of Nature and
Natural Resources (IUCN) (2004) - more than 1.5 million**

more than 20,000 species of ants, 3,00,000 species of beetles, 28,000 species of fishes and nearly 20,000 species of orchids

Macromolecules within cells to biomes

medicinal plant Rauwolfia vomitoria - different Himalayan ranges - potency and concentration of the active chemical (reserpine)

50,000 strains of rice, and 1,000 varieties of Mango

Western Ghats have a greater amphibian species diversity than
the Eastern Ghats

AtIndia - greater ecosystem diversity
than a Scandinavian country like Norway

in Total - >70% animals & 22% plants(including algae, fungi,bryophytes, gymnosperms and angiosperms)

Invertebrates - Indian Oil is more costly, Vertebrates - FB RAM, Plants - Anna who is family friend likes thambi

1. extreme estimates
range from 20 to 50 million *

2. a more conservative and scientifically
sound estimate - Robert May - global species diversity is 7 million.*

conventional taxonomic methods are not suitable for identifying microbial species

many not culturable under laboratory conditions

one of 12 Mega diversity country

land area in world - 2.4%, Global species diversity - 8.1%

Nearly 45,000 species of plants, animals are twice as that of plants

May’s global estimates - only
22 per cent of the total species have been recorded - If so, in India - more than 1,00,000 plant species and more than 3,00,000 animal species
yet to be discovered and described