Saturday, July 11, 2009

Extinction alarm !

Chances of humans benefiting from nature are receding, as natural habitats are becoming less productive due to the gradual extinction of plant species.
Many scientists now argue that the Earth is in the middle of the sixth mass extinction in the history of life. Some estimates suggest that as much as 50 per cent of all known species could be extinct by the end of this century.
According to an international team of scientists, new analysis shows plant communities as being composed of both stars and supporting players.
Some plants are so productive that they dominate the productivity of natural habitats. Supporting species complement key players and enhance the productivity of plant communities even further.

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