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Biodiversity and its conservation

Biodiversity and its conservation.

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Biodiversity and its conservation

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  1. Biodiversity and its conservation

  2. Biodiversity is the degree of variation of life forms within a given ecosystem, biome, or an entire planet. Biodiversity is a measure of the health of ecosystems. Biodiversity is in part a function of climate. In terrestrial habitats, tropical regions are typically rich whereas polar regions support fewer species. Bajaj Coaching Center, Rohtak

  3. Levels of biodiversity Species diversity Ecosystem diversity Genetic diversity Bajaj Coaching Center, Rohtak

  4. Genetic diversity--The genetic variation existing within a species is called genetic diversity. The number of genes present in a species differs from those present in another species. A species with more genetic diversity can adapt better to the changed environmental conditions. A species with low genetic diversity results into uniformity.

  5. Species diversity-species diversity refers to the variety of species within a region. It includes the full range of species in the region, from microorganisms to multicellular plants and animals. The species diversity of a region is measured on the basis of two parameters; species richness and equitability Bajaj Coaching Center, Rohtak

  6. Ecosystem diversity-community diversity refers to the variation in the biological communities in which species live. There are three types of diversity at the community level. 1.Alpha diversity indicates diversity within the community. 2.Beta diversity indicates diversity between communities. 3. Gamma diversity refers to the diversity of the habitats over the total land scape .

  7. Benefits of biodiversity Drugs and medicines Aesthetic and cultural benefits Source of food and improved varieties Ecosystem services

  8. Threats to biodiversity Destruction of habitats. Habitat fragmentation. Disturbance and pollution Introduction of exotic species Hunting and over exploitation Poaching Bajaj Coaching Center, Rohtak

  9. THANKYOU

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