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Rates of Lateral Expansion of Biological Soil Crusts


Abstract Biological soil crusts (biocrust) are photosynthetic communities of organisms forming in the top millimeters of unvegetated soil. Because soil crusts contribute several ecosystem services to the areas they inhabit, their loss under anthropogenic pressure has negative ecological consequences. There is a considerable interest in developing technologies for biocrust restoration such as biocrust nurseries to grow viable inoculum and the optimization of techniques for field deployment of this inoculum. For the latter, knowledge of the natural rates of biocrust dispersal is needed. Lateral dispersal can be based on self-propelled motility by component microbes, or on passive transport through propagule entrainment in runoff water or wind currents... (more)
Created Date 2017
Contributor Sorochkina, Kira (Author) / Garcia-Pichel, Ferran (Advisor) / Rowe, Helen (Committee member) / Wu, Jianguo (Committee member) / Arizona State University (Publisher)
Subject Microbiology / Natural resource management / Conservation biology / biocrust establishment / community dispersal / land management / microbial colonization / pioneer cyanobacteria / restoration ecology
Type Masters Thesis
Extent 58 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Masters Thesis Biology 2017
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis