Loss of Biodiversity презентация

Loss of Biodiversity Leonarda Elsgolts, 1pa

Biodiversity is the variety of plant and animal  Biodiversity is the variety of plant and animal  species present in the natural environment. 

Extincts: >99% Extincts: >99%

Convention on Biological Diversity  Convention on Biological Diversity  Rio de Janeiro,1992

Types of biodiversity Types of biodiversity 1. Species diversity  Animalia Bacteria Fungi Protozoa Archaea Chromista Plantae Viruses 2. Genetic diversity 

3. Ecosystem diversity  3. Ecosystem diversity  Coastal environments Water environments Mountain environments Savannas Deserts Tropical forests Temperate forests

Biodiversity Loss & Species Extinction

May become extinct in the near future: 25% of all mammals 11% of all identified birds 30% of all known fish 20% of reptiles 25% of amphibians

Causes of the loss of biodiversity: Loss of the habitats Introductions of Invasive Alien Species  Pollution Climate change Human overpopulation Overexploitation of resources

Protected areas: National parks Wildlife sanctuary Forest reserves

Facts: Since 2000, 6 million hectares of primary forest have been lost each year. 35% of mangroves have been lost in just 20 years. 70% of coral reefs are threatened or destroyed.

Thank you for your attention!