Biodiversity SEMINAR PRESENTED BY KAUSHIK DAS B. ED ROLL-18

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Presentation transcript:

Biodiversity SEMINAR PRESENTED BY KAUSHIK DAS B. ED ROLL-18 SESSION: 2012-2013

Biodiversity …..? Biodiversity is the degree of variation of life forms within a given species, ecosystem, biome, or an entire planet Biodiversity is a measure of the health of ecosystems

Significances 1.Environmental values Maintains balance in nature by keeping the food chain undisturbed

2. Store house of genes 2.5 lakhs species of plants Only 5000 species studied properly! only 30 to 35 species identified as food!! --T.K Saha,2010

3. Medicinal plants Indian medicine system is largely dependent on such drug plants Indian subcontinent is a rich emporia of 2500 plant species used in indigenous treatment Aconitum sp.( ENDANGERED Plants ) Ephedra sp.

Significances…. ☺ Aesthetical and cultural issue ☺ Economy development

Threats to Biodiversity !!? Habitat loss and destruction! introduction of exotic (non-native) species ! over-exploitation ! pollution and contamination ! Global climate change ! and many more………………………………………..

Habitat loss and destruction !

Introduction of exotic species –Dhupi in Darjeeling!

over-exploitation !

Conservation of biodiversity Legislation Environment Protection Act, 1986 Fisheries Act, 1897 Forest Act, 1927 Forest (Conservation) Act, 1980 Wildlife (Protection) Act 1972 Wildlife (Protection) Amendment Act 1991

In-situ Conservation ●National parks and sanctuaries Biosphere reserves-Sundarbans (West Bengal) Reserved forests

Conservation strategies.......... ►Ex-situ Conservation conservation of plants and animals preserve them away from their natural habitat ► Community Participation in Biodiversity Conservation ►Green India Mission

Some critically endangered species in India: Source: (Ministry of Environment and Forests, Government of India)

So, Save Biodiversity THANK YOU