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Biodiversity - Quality Circle of class VI
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3. BIODIVERSITY Biodiversity is the degree of variation of life forms within a given ecosystem, biome, or an entire planet.
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6. HOTSPOTS A biodiversity hotspot is a region with a high level of endemic species. Hotspots were first named in 1988 by Dr. Norman Myers. While hotspots are spread all over the world, the majority are forest areas and most are located in the tropics.
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13. Extinction of most of the species from 1000AD to 2000AD are due to destruction of plants and animals habitats by man.
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15. Pollution of air ,soil and water has endangered many species. Excessive use of chemicals like DDT has killed several birds like Pelicans. River dolphins of the Amazon, Ganga and other rivers are threatened by water pollution from chemicals. .
16. Exotic animals and plants which do not belong to a place originally and are introduced from elsewhere.
17. HUNTING Hunting of Tigers, Elephants, Rhinos, Bears and Whales are killed for skin, horn, tusk, fur, bone etc. has left these animals at the verge of extinction.
31. WWF is one of the international organization that aims at conservation of nature. It runs several programmes to spread awareness about the need to conserve biodiversity.
37. A ZOOLOGICAL PARK REFERS TO ANY PARK, BUILDING, CAGE, ENCLOSURE, OR A PREMISE IN WHICH LIVE ANIMALS ARE KEPT FOR PUBLIC EXHIBITION.
38. National botanical garden (or Botanical gardens) have been established to conserve rare plants and threatened ones. These gardens are the zoos of the plant world. These serve as seed banks , and have reserves of seeds of several species of plants.
39. SOME SUCCESS STORIES.. Sunderlal Bahuguna is associated with Chipko Movement. It was started in Garhwal Himalayas where the people showed a great courage to protect trees. The women of the region hugged the trees and didn’t allow to cut them.
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41. To save our national animal Tiger from extinction , a project was started in 1973 called ‘Project Tiger’ . In this project, the places where the tigers were found were first identified and then ways and means were worked out for conserving them.
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