Competitive ability of the bunchgrass Schizachyrium scoparium as affected by grazing history and defoliation

  title={Competitive ability of the bunchgrass Schizachyrium scoparium as affected by grazing history and defoliation},
  author={David D. Briske and Val. J. Anderson},
Herbivory by large animals is known to function as a selection pressure to increase herbivory resistance within plant populations by decreasing the frequency of genotypes possessing large, erect canopies. However, the increase in herbivory resistance of the remaining genotypes in the population may potentially involve a tradeoff with competitive ability. The perennial bunchgrass Schizachyrium scoparium was grown in a transplant garden to test the hypothesis that late successional plant… CONTINUE READING
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