Grazer traits, competition, and carbon sources to a headwater-stream food web.

@article{McNeely2007GrazerTC,
  title={Grazer traits, competition, and carbon sources to a headwater-stream food web.},
  author={Camille McNeely and Jacques C Finlay and Mary Eleanor Power},
  journal={Ecology},
  year={2007},
  volume={88 2},
  pages={391-401}
}
We investigated the effect of grazing by a dominant invertebrate grazer (the caddisfly Glossosoma penitum) on the energy sources used by other consumers in a headwater-stream food web. Stable isotope studies in small, forested streams in northern California have shown that G. penitum larvae derive most of their carbon from algae, despite low algal standing crops. We hypothesized that the caddisfly competes with other primary consumers (including mayflies) for algal food and increases their… CONTINUE READING
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