New Approach Challenges Old Ideas About Plant Species and Biomass

It is no longer hump day, according to new research in the current issue of the journal Science. Research that included Stanley Harpole of Iowa State University challenges a widely-accepted idea from the 1970s showing as plant biomass produced in a system increased, so did the number of plant species, to a point. After that point, the number of plant species is thought to decline. When plotted on a graph, the result is a hump shape, with maximum species richness occurring at the point of intermediate productivity. But, now it's time to get over the hump.

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