The historic Convention on Biological Diversity, ‘The Earth Summit’ was held in Rio de Janeiro in the year
List I | List II | ||
---|---|---|---|
A | Mesozoic Era | I | Lower invertebrates |
B | Proterozoic Era | II | Fish & Amphibia |
C | Cenozoic Era | III | Birds & Reptiles |
D | Paleozoic Era | IV | Mammals |
The reduction in the number, genetic variability, and the variety of species and the biological community of a place is known as the Loss of Biodiversity. By humans, due to the colonization of the tropical Pacific Island, there has been a deprivation of more than 2000 species. Present data evaluates that around 15,500 species are endangered. Presently the loss of biodiversity is evaluated at - 23% of all mammal species, 12% of all bird species, 32% of all amphibian species, and 31% of gymnosperm species on the planet are facing the threat or warning of extinction.