Food Web Dynamics in Yellowstone Streams: Shifts in the Trophic Basis of a Stream Food Web After Wildfire Disturbance
Food Web Dynamics in Yellowstone Streams: Shifts in the Trophic Basis of a Stream Food Web After Wildfire Disturbance
This chapter describes the shifts in the trophic basis of a stream food web after wildfire disturbance in Yellowstone streams. Wildfire can affect lotic systems at temporal scales ranging from days to decades and spatial scales ranging from microhabitats to entire watersheds. Impacts on aquatic food webs include the short- and long-term alteration of resource pathways in post-fire streams. A shift in trophic energy from detrital to grazing pathways in streams following wildfire has been predicted. Consumer-resource pathways were determined in two second-order Yellowstone National Park streams in the summer of 1990 and 1991 to characterize trophic pathways after the 1998 wildfires. The relative contribution of autochthonous and allochthonous resources to primary consumer biomass was determined in the reference and burned stream using the generalist trophic dynamic model.
Keywords: Yellowstone streams, food web dynamics, trophic basis, wildfire, aquatic food webs
Yale Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.
Please, subscribe or login to access full text content.
If you think you should have access to this title, please contact your librarian.
To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us.
