Data from: Trematode parasites exceed aquatic insect biomass in Oregon stream food webs

Daniel Preston, Tamara Layden, Leah Segui, Landon Falke, Sara Brant & Mark Novak
1) Although parasites are increasingly recognized for their ecosystem roles, it is often assumed that free-living organisms dominate animal biomass in most ecosystems and therefore provide the primary pathways for energy transfer. 2) To examine the contributions of parasites to ecosystem energetics in freshwater streams, we quantified the standing biomass of trematodes and free-living organisms at nine sites in three streams in western Oregon, USA. We then compared rates of biomass flow from snails (Juga...
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