dc.contributor.advisor | Restrepo, Carla | |
dc.contributor.author | Ortiz-Maldonado, Yakshi Nicole | |
dc.date.accessioned | 2021-07-06T17:26:32Z | |
dc.date.available | 2021-07-06T17:26:32Z | |
dc.date.issued | 2021-05-14 | |
dc.identifier.uri | https://hdl.handle.net/11721/2501 | |
dc.description.abstract | The microbial community inhabiting the root-soil contact interface, rhizobiomes, represent a critical link between plant, ecosystems, and geomorphic processes. In landslides where fresh silicate rocks are exposed, rhizobiomes may set in motion several biogeochemical transformations with local to global impacts. Given the prevalence of landslides in humid mountains wordwide and the understudied role of rhizobiomes in these environments, I designed a field study to address two aims: 1) characterize the composition, and function of plant rhizobiomes established in “landslide-like” areas, and 2) evaluate the role of rhizobiomes in (Ca,Mg)-silicate rock weathering through an rock incubation experiement. I found two key results: 1) that the distinctive biotic and abiotic factors between landslides and forests habitats were important in structuring microbial community composition and functioning, and 2) that rock weathering occurrs faster in landslides compared to forest, and that the resulting nutrient mobilization drives microbial diversity and composition. | en_US |
dc.description.sponsorship | This study was supported by the Puerto Rico Louis Stokes – Alliance for Minority Participation (Bridge to Doctorate Program; Grant No. HDR1400870), the NASA Puerto Rico Space Grant Consortium (Grant No. NNX15AI11H), the Institutional Development Award (IdeA to CR and FG) from the National Institute of General Medical Sciences of the National Institutes of Health (Grant No. P20 GM103475-14) and the National Science Foundation (NSF-DEB 1556878 to CR) | en_US |
dc.language.iso | en | en_US |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 United States | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/us/ | * |
dc.subject | Silicate rock weathering | en_US |
dc.subject | Root microbiome | en_US |
dc.subject | Rhizobiomes | en_US |
dc.subject | Carr. 143 Jayuya-Ponce, P.R. | en_US |
dc.subject | Cerro Punta, Jayuya, P.R. | en_US |
dc.subject.lcsh | Landslides. | en_US |
dc.subject.lcsh | Carbon cycle (Biogeochemistry) | en_US |
dc.title | Landsliding and rhizobiota link the short- and the long-term carbon cycle through silicate rock weathering | en_US |
dc.type | Thesis | en_US |
dc.rights.holder | © 2021 Yakshi Ortiz-Maldonado | en_US |
dc.contributor.committee | Godoy-Vitorino, Filipa | |
dc.contributor.committee | Flores, Zomary | |
dc.contributor.committee | Papa, Riccardo | |
dc.contributor.campus | University of Puerto Rico, Río Piedras Campus | en_US |
dc.description.graduationSemester | Spring (2nd Semester) | en_US |
dc.description.graduationYear | 2021 | en_US |
thesis.degree.discipline | Biology | en_US |
thesis.degree.level | M.S. | en_US |