Plant production is closely correlated with resource

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Get a quotation from this paragrapgh: At regional or continental scales, plant production is closely correlated with resource availability. How much extra variance, if any, is explained by plant diversity? Few experiments have explicitly compared the quantitative importance of changing diversity within trophic levels to that of nutrient loading, cascading predator effects, and other factors. The few that have done so suggest that changing biodiversity within trophic levels can be of comparable importance to realistic ranges of bottom-up and top-down forcing. In the most comprehensive exam ple, changing species richness of herbivorous pond snails had comparable or greater effects on a range of ecosystem processes than did a fourfold change in nutrient supply or exclusion of predators (Wojdak 2005).

Reference no: EM133814920

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