🌸......SHORT NOTES OF BIODIVERSITY........ 🌸
Global species diversity 🌎
means total species present on the earth.
(i) According to IUCN (2004) the total number of plant and animal species is slightly more than 1.5 million.
(ii) For many taxonomic groups, species inventories are more complete in temperate than in tropical countries.
(iii) A more conservative and scientifically sound estimate by Robert May, places the global species diversity at about 7 million.
(iv) More than 70% of all the species recorded are animals, while plants comprise no more than 22% of the total.
(v) Among animals, insects are most species rich-taxonomic group, making about 70% of the total. It means, out of every 10 animals, 7 are insects on the earth.
