NEET Biology Biodiversity and Conservation
Biodiversity and Conservation PDF Notes, Important Questions and Synopsis
- Biodiversity refers to the totality of genes, species and ecosystems of a region.
Speciation is the evolution of a new species.
Patterns of Biodiversity
Causes of Biodiversity Losses
- IUCN Red Listis a catalogue of taxa facing the risk of extinction.
Strategies of Biodiversity Conservation
This strategy emphasises protection of total ecosystems including the protection of endangered species in their natural habitat.
This strategy includes botanical gardens, zoos, tissue culture and gene/DNA, pollen and seed banks.
A species confined to a particular region and not found anywhere else is termed an endemic species.
Sacred groves are the large number of trees and wildlife protected due to religious sanctity and cultural traditions.
Hot spots are the richest and most threatened reservoirs of plant and animal life on Earth.
Protected areas are the areas of land or sea especially dedicated to the protection and maintenance of biological diversity and natural and associated cultural resources.
National park is an area which is strictly reserved for wildlife and where no other activity like grazing or cultivation is allowed.
Sanctuary represents an area reserved for the conservation of animals only and other activities such as harvesting of timber, collection of forest products etc. are not allowed.
- WWF started once biodiversity underpins the health of the planet and has a direct impact on all our lives
- In NCERT is is written that- almost 40% forest have been lost in the tropics compared to only 1% in the temperate region. Why tropical forests are destroyed faster and why there is so much of difference in the percentage loss?
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