sábado, 28 de novembro de 2009

Biodiversity



Biodiversity is all the different forms of life on the planet, or in a particular region.

Why is it important to preserve biodiversity?

Ethical reasons, because the human being has a moral duty to protect other forms of life.

Economic reasons, the decline of species can affect human activities such as fishing and the production of medicines.
Do not forget that at least 40% of the world economy and 80% of the needs of people depend on biological resources.

Reasons functional nature, the reduction of biodiversity leads to environmental losses because the species have important roles in ecosystems such as air purification, climate regulation, soil and watershed erosion, pest control etc..

The main causes for the extinction of species are climate changes, habitat destruction, hunting and lack of food (is also a consequence of loss of biodiversity).

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