BIODIVERSITY

BY ANIS FATEMAB.E FIRST YEARBRANCH : E.C.E

M.J.C.E.T

BIODIVERSITY

WHAT DOES BIODIVERSITY

MEAN ?

“BIO” means

LIFE

“DIVERSITY”MEAN

S

VARIETY

INTRODUCTION The term BIODIVERSITY was fi rst co ined by WALTER .G.ROSEN in 1986. B iod ivers i ty i s abbrev iat ion Of B io log ica l d ivers i ty. The b iosphere comprises complex co l lect ion of innumerable organisms known as the b iod ivers i ty which const i tute the v i ta l l i fe support for surv iva l o f human race . B iod ivers i ty represents var ious l i fe forms

such as p lants ,fi shes ,mammals etc . at var ious b io log ica l levels .

THERE ARE THREE TYPES OF BIODIVERSITY Diversity of species.

Diversity of ecosystem.

Diversity of genes.

IMPORTANCE OF BIODIVERSITY

Balance of nature.Biological productivity.Regulation of climate.Maintenance of soil fertility.Cycling of nutrients.

BIODIVERSITY HOTSPOTS

A region with high biodiversity with most of species being endemic . India have two biodiversity hotspots –East Himalayan region and 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 and 20,000 extinctions occur each year. 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 OF BIODIVERSITY

Imparting environmental education. Population control. Reviewing the agriculture practice. Controlling urbanization. Conservation through biotechnology. Enacting, strengthening and enforcing

environmental legislation.

CONCLUSION

Biodiversity is our life. If the biodiversity is lost at this rate then the survival of human in future will be threatened. So it is our moral duty to protect biodiversity and environment.

We celebrate international day on biological diversity on MAY 22 .

SAVE BIODIVERSITY

THANK YOU