Ecosystem Services
Question
Which of the following ecologists has tried to put price-tags on nature's life support services?
Easy
Solution
Robert Constanza and his colleagues have very recently tried to put price tags on nature’s life-support services. Researchers have put an average price tag of US $ 33 trillion a year on these fundamental ecosystems services, which are largely taken for granted because they are free.
Paul Ehrlich- rivet popper hypothesis
David Tilman- long-term ecosystem experiments
Robert May places the global species diversity at about 7 million.
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