Interactions between Herbivorous Fishes and Limiting Nutrients in a Tropical Stream Ecosystem

  title={Interactions between Herbivorous Fishes and Limiting Nutrients in a Tropical Stream Ecosystem},
  author={Alexander S. Flecker and Brad W. Taylor and Emily S Bernhardt and James M Hood and William K. Cornwell and S Cassatt and Michael J. Vanni and Naomi S. Altman},
Ecologists have long been interested in understanding the strengths of consumer and resource limitation in influencing communities. Here we ask three questions concerning the relative importance of nutrients and grazing fishes to primary producers of a tropical Andean stream: (1) Are stream algae nutrient limited? (2) Are top-down and bottom-up forces of dual importance in limiting primary producers? (3) Do grazing fishes modulate the degree of resource limitation? We obtained several lines of… CONTINUE READING
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