BiodiversityBiodiversity

By- Ankush Sethi Nikhil Sood Vijay Mohan

Bio What?Bio What?

•Biodiversity is the variety of Biodiversity is the variety of all life forms: the different all life forms: the different plants, animals and micro-plants, animals and micro-organisms, their genes and organisms, their genes and the ecosystems of which they the ecosystems of which they are a part.are a part.

Importance Of biodiversityImportance Of biodiversity• Shelter Shelter • FoodFood• Water Water • HealthHealth• land land • Medicine Medicine • Air Air

Levels in BiodiversityLevels in Biodiversity

•Genetic diversityGenetic diversity--

•Species Diversity-Species Diversity-•Ecosystem DiversityEcosystem Diversity--

Genetic diversityGenetic diversity--

• (variation of genes) the total genetic (variation of genes) the total genetic information contained in the genes of information contained in the genes of all species.all species.

Species DiversitySpecies Diversity

•((variety of living species), refers to variety of living species), refers to the number of species and the the number of species and the number of individuals in an number of individuals in an ecosystem.ecosystem.

Ecosystem DiversityEcosystem Diversity• ( variation of eco- system)the variety ( variation of eco- system)the variety

of habitats natural communities and of habitats natural communities and ecological processes.ecological processes.

Factor responsible for Factor responsible for determination of determination of biodiversity biodiversity • Habitat loss and fragmentation Habitat loss and fragmentation • GMO (genetically modified organism)GMO (genetically modified organism)• PollutionPollution• Global climate changeGlobal climate change• DesertificationDesertification• Population growth and over consumptionPopulation growth and over consumption• Unsustainable use of natural resources.Unsustainable use of natural resources.

Consequences of loss of Consequences of loss of BiodiversityBiodiversity• A loss of ecosystem services-A loss of ecosystem services- Protection Protection

of water resources, nutrient storage and cycling, of water resources, nutrient storage and cycling, Pollution breakdown and absorptionPollution breakdown and absorption

• Loss of genetic diversity- Loss of genetic diversity- Genetic Genetic diversity allows species to adapt to changing diversity allows species to adapt to changing environmental conditions and stresses.environmental conditions and stresses.

• Economic cause.Economic cause.• Environmental Cause.Environmental Cause.

Threats to biodiversityThreats to biodiversity• Casual factors Casual factors 1.1. Development pressure Development pressure 2.2. Encroachment Encroachment 3.3. Exploitation Exploitation 4.4. Human induced disasters Human induced disasters

• Threats to genetic diversityThreats to genetic diversity• Endangered plant and animal species Endangered plant and animal species

Need for Conservation Need for Conservation • Food security Food security • Fuel and wood Fuel and wood • Maintenance of water resourcesMaintenance of water resources• Soil formation and fertilitySoil formation and fertility• Natural resources Natural resources • Economic benefits Economic benefits

Biodiversity affected by Global Biodiversity affected by Global Warming Warming

A 2 minute video which gives the message –A 2 minute video which gives the message –““WHEN YOU FEEL IT, ITS ALREADY TOO LATE”WHEN YOU FEEL IT, ITS ALREADY TOO LATE”

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