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Response of herbivore load and predator/prey ratio to nutrient manipulations.

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posted on 28.08.2012 by Shannon M. Murphy, Gina M. Wimp, Danny Lewis, Robert F. Denno

Effects of press (solid line) and pulse (dashed line) treatments on herbivore load (A, B) and predator/prey ratio (C, D) at the CHNS and TUCK (means ±se). Effects within gray bars were not significantly different from zero, meaning that treatment and control plots did not differ. Herbivores consisted of all planthopper adults and nymphs plus Trigonotylus; predators consisted of all spiders. Asterisks indicate that pulse and press treatments had significantly different effects in a given year (α = 0.05).