Predators accelerate nutrient cycling in a bromeliad ecosystem.

@article{Ngai2006PredatorsAN,
  title={Predators accelerate nutrient cycling in a bromeliad ecosystem.},
  author={Jacqueline T. Ngai and Diane S Srivastava},
  journal={Science},
  year={2006},
  volume={314 5801},
  pages={963}
}
Conventional ecological theory predicts that predators affect nutrient cycling by decreasing the abundance or activity of prey. By using a predator-detritivore-detritus food chain in bromeliads, we show that predators can increase nutrient cycling by a previously undescribed, but broadly applicable, mechanism: reducing nutrient export by prey emigration. Contrary to expectations, predation on detritivores increases detrital nitrogen uptake by bromeliads. Predation reduces detritivore emergence… CONTINUE READING
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