Blazing and grazing: influences of fire and bison on tallgrass prairie stream water quality

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dc.contributor.author Larson, Danelle M.
dc.contributor.author Grudzinski, Bartosz P.
dc.contributor.author Dodds, Walter K.
dc.contributor.author Daniels, Melinda D.
dc.contributor.author Skibbe, Adam M.
dc.contributor.author Joern, Anthony
dc.date.accessioned 2013-10-11T18:15:49Z
dc.date.available 2013-10-11T18:15:49Z
dc.date.issued 2013-10-11
dc.identifier.uri http://hdl.handle.net/2097/16645
dc.description.abstract Fire and grazers (such as Bison bison) were historically among the most important agents for maintaining and managing tallgrass prairie, but we know little about their influences on water-quality dynamics in streams. We analyzed 2 y of data on total suspended solids (TSS), total N (TN), and total P (TP) (3 samples per week per stream during flow) in 3 prairie streams with fire and bison grazing treatments at Konza Prairie Biological Station, Kansas (USA), to assess whether fire and bison increase the concentrations of these water-quality variables. We quantified the spatial and temporal locations of bison (~0.21 animal units/ha) with Global Positioning System collars and documented bison trails, paw patches, wallows, and naturally exposed sediment patches within riparian buffers. Three weeks post-fire, TN and TP decreased (t-test, p<0.001), but TSS did not change. Bison spent <6% of their time within 10 m of the streams, increased the amount of exposed sediment in the riparian areas, and avoided wooded mainstem branches of stream (x² test, p<0.001). Temporal trends suggest that low discharge or increased bison density in the stream may increase TSS and TP during the summer months. Our results indicate a weak connection between TSS and nutrients with bison access to streams over our 2-y study and indicate that low TSS and nutrients characterize tallgrass prairie streams with fire and moderate bison densities relative to surrounding land uses. en_US
dc.language.iso en_US en_US
dc.relation.uri http://www.bioone.org/doi/full/10.1899/12-118.1 en_US
dc.rights © 2013 by The Society for Freshwater Science en_US
dc.subject Tallgrass prairie en_US
dc.subject Grasslands en_US
dc.subject Streams en_US
dc.subject Burning en_US
dc.subject Bison en_US
dc.subject Prescribed fire en_US
dc.subject Grazers en_US
dc.title Blazing and grazing: influences of fire and bison on tallgrass prairie stream water quality en_US
dc.type Article (publisher version) en_US
dc.date.published 2013 en_US
dc.citation.doi doi:10.1899/12-118.1 en_US
dc.citation.epage 791 en_US
dc.citation.issue 3 en_US
dc.citation.jtitle Freshwater Science en_US
dc.citation.spage 779 en_US
dc.citation.volume 32 en_US
dc.contributor.authoreid wkdodds en_US
dc.contributor.authoreid mddaniel en_US
dc.contributor.authoreid askibbe en_US
dc.contributor.authoreid ajoern en_US


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