INTRODUCTION The term BIODIVERSITY was first coined byWALTER.G.ROSEN in 1986.Biodiversity is abbreviationOf Biological diversity.The biosphere comprisescomplex collection of innumerable organisms knownas the biodiversity which constitute the vital life support for survival of human race . Biodiversity represents various life forms such as plants ,fishes ,mammals etc. at various biological levels.
THERE ARE THREE TYPES OFBIODIVERSITY Diversity of species. Diversity of ecosystem. Diversity of genes.
IMPORTANCE OF BIODIVERSITY Balance of nature. Biological productivity. Regulation of climate. Maintenance of soilfertility. Cycling of nutrients.
BIODIVERSITY HOTSPOTSA region with highbiodiversity with most ofspecies being endemic . India have twobiodiversity hotspots –East Himalayan regionand western ghat.
THREATS TO BIODIVERSITY NATURAL CAUSES• Narrow geographical area• Natural disasters. ANTHROPOGENIC CAUSES• Habitat modification.• High population.• High breeding rate.
• Pollution.• Global warming .• Change of climate
RECENT ISSUES ON BIODIVERSITY We lost 75% of crop plants in past century. Scientist estimated 3 species per hour are going extinct and20,000 extinctions occur eachyear. One third of the world coral reef system have been destroyed. About 24% of mammals and 12% of bird species are currently considered to be globally threatened.
CONSERVATION OFBIODIVERSITY Imparting environmentaleducation. Population control. Reviewing the agriculture practice. Controlling urbanization. Conservation throughbiotechnology. Enacting, strengthening and enforcing environmental legislation.
CONCLUSION Biodiversity is our life. If the biodiversity is lost atthis rate then the survival ofhuman in future will bethreatened. So it is our moralduty to protect biodiversityand environment.
We celebrate international day onbiological diversity on MAY 22 .