An evolutionary approach to ecosystem functioning.

نویسنده

  • D Tilman
چکیده

The more diversified in habits and structure the descendants of our carnivorous animal became, the more places they would be enabled to occupy. What applies to one animal will apply throughout all time to all animals. . . So it will be with plants. It has been experimentally proved, that if a plot of ground be sown with several distinct genera of grasses, a greater number of plants and a greater weight of dry herbage can thus be raised. The same has been found to hold good when first one variety and then several mixed varieties of wheat have been sown on equal spaces of ground. Hence, if any one species of grass were to go on varying, and those varieties were continually selected which differed from each other in at all of the same manner as distinct species and genera of grasses differ from each other, a greater number of individual plants of this species of grass, including its descendants, would succeed in living on the same piece of ground. Charles Darwin (1859) (1)

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عنوان ژورنال:
  • Proceedings of the National Academy of Sciences of the United States of America

دوره 98 20  شماره 

صفحات  -

تاریخ انتشار 2001