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Climatic constraints on high-elevation aboveground net primary production

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dc.contributor.authorBerdanier, Aaron B., author
dc.contributor.authorKlein, Julia Anne, advisor
dc.contributor.authorKnapp, Alan K., 1956-, committee member
dc.contributor.authorBurke, Ingrid C., committee member
dc.coverage.spatialColorado
dc.date.accessioned2007-01-03T04:41:04Z
dc.date.available2007-01-03T04:41:04Z
dc.date.issued2010
dc.descriptionDepartment Head: N. LeRoy Poff.
dc.description.abstractLife in high-elevation ecosystems is hard. Ecosystem functions such as aboveground net primary production (ANPP) are constrained by short growing seasons and patchy resource availability. I quantified ANPP responses to changes in these variables by combining global, regional, and local observations with simple models. I observed a consistent, linear increase in ANPP with growing season length (4 g/m2/d) at local and regional scales. I also found a nonlinear, asymptotic increase in ANPP with soil moisture across sites, despite variation in space, time, and plant species composition. I hypothesized that this soil moisture limitation may be partially mediated by nitrogen availability based on leaf-level observations from Niwot Ridge, CO. Finally, I compared a set of competing models relating ANPP to growing season length and soil moisture. I found that the combined influence of these variables was modeled best with a cumulative limitation by soil moisture. This model offers a simple basis for predicting the response of high-elevation ANPP to changes in these climatic constraints.
dc.format.mediummasters theses
dc.identifier2010_Spring_Berdanier_Aaron.pdf
dc.identifierETDF2010100001ECOL
dc.identifierQH541.5.M65 B47 2010
dc.identifier.urihttp://hdl.handle.net/10217/38381
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartof2000-2019
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subject.lcshMountain ecology -- Colorado
dc.subject.lcshVegetation and climate -- Colorado
dc.subject.lcshMountain plants -- Colorado
dc.titleClimatic constraints on high-elevation aboveground net primary production
dc.typeText
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
thesis.degree.disciplineEcology
thesis.degree.grantorColorado State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science (M.S.)

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