Patterns in nutrient enrichment and decomposition of grass litter in Kenai Peninsula headwater streams, Alaska.

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dc.contributor.advisorKing, Ryan Steven, 1972-
dc.contributor.authorKostka, Pamela K.
dc.contributor.departmentBiology.en_US
dc.contributor.schoolsBaylor University. Dept. of Biology.en_US
dc.date.accessioned2013-05-15T18:38:03Z
dc.date.available2013-05-15T18:38:03Z
dc.date.copyright2012-12
dc.date.issued2013-05-15
dc.description.abstractThe percent cover of alder in catchments drives dissolved inorganic nitrogen availability in southcentral Alaska headwater streams. I manipulated the availability of N and P to leaf packs of bluejoint grass litter using nutrient diffusion samplers (NDS) to experimentally test for nutrient limitation of litter breakdown, nutrient content, and bacterial biomass in three headwater streams differing in the percent cover of alder in their catchments. I found that litter breakdown rates, nutrient content, and bacterial biomass significantly increased in response to nitrogen treatments, and to a lesser degree, phosphorus treatments in the stream lacking alder in its catchment. Streams in catchments with even a low cover percentage of alder did not exhibit nitrogen limitation but exhibited phosphorus limitation even though all the streams in this study had relatively high phosphate levels.en_US
dc.description.degreeM.S.en_US
dc.identifier.urihttp://hdl.handle.net/2104/8580
dc.language.isoen_USen_US
dc.publisheren
dc.rightsBaylor University theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. Contact librarywebmaster@baylor.edu for inquiries about permission.en_US
dc.rights.accessrightsWorldwide accessen_US
dc.subjectHeadwater streams.en_US
dc.subjectNutrient enrichment.en_US
dc.subjectBacterial biomass.en_US
dc.subjectLitter breakdown.en_US
dc.titlePatterns in nutrient enrichment and decomposition of grass litter in Kenai Peninsula headwater streams, Alaska.en_US
dc.typeThesisen_US

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