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dc.contributor.advisorBreckon, Gary J.
dc.contributor.authorSustache-Sustache, José A.
dc.date.accessioned2018-08-09T14:35:28Z
dc.date.available2018-08-09T14:35:28Z
dc.date.issued2004
dc.identifier.urihttps://hdl.handle.net/20.500.11801/809
dc.description.abstractIn this work, I studied the effects of natural disturbances, specifically Hurricane Georges, on plant growth and survival in forests of north-central Puerto Rico. Eight study plots were monitored from February 1999 to January 2000. This study demonstrated that seedling density of many species was higher in disturbed sites. Two hundred and seventy-nine new seedlings germinated, 9.36 % of the total individuals recorded in all study plots (2,981). Growth (basal area, ht) for all species combined was significantly greater in disturbed sites. Survival of seedlings was consistently higher in disturbed plots. Seedlings that germinated post-hurricane and their species richness were higher in disturbed plots. Species richness highlighted the role of neighboring parental trees, as well as the seed bank and dispersal. Forest gaps facilitated germination, and possibly the replacement of plants otherwise inhibited by canopy species. Lessons gained from my study should be useful to promote native plant species regeneration, and aid in reconciling competing forest management practices.
dc.description.abstractEn éste trabajo, estudié los efectos de los disturbios naturales, específicamente del Huracán Georges, sobre el crecimiento y supervivencia de plantas en los bosques de la parte norte –central de Puerto Rico. Ocho parcelas fueron seguidas de febrero de 1999 a enero de 2000. Este estudio demostró que la densidad de plántulas de muchas especies fue más alta en áreas con disturbios. Un total de 279 plántulas nuevas germinaron, 9.36 % del total de individuos marcados en todas las parcelas de estudio (2,981). El crecimiento (área basal, altura) de todas las especies combinadas fue significativamente mayor en áreas de disturbio. La supervivencia de las plántulas fue consistentemente mayor en parcelas con disturbio. La germinación y la riqueza de especies fue mayor en áreas con disturbio. La riqueza de las especies resaltó la contribución tanto de los bancos de semillas como su dispersión. Los claros en los bosques facilitaron el reclutamiento y posiblemente el reemplazo de plantas que de otra manera serían inhibidas por el dosel. Los conocimientos adquiridos de mi estudio pueden utilizarse para promover especies de plantas nativas, y ayudar a combinar prácticas de manejo forestales que pudieran parecer incompatibles.
dc.description.sponsorshipPuerto Rico Department of Natural and Environmental Resourcesen_US
dc.language.isoenen_US
dc.subjectEffects of natural disturbancesen_US
dc.subjectPlant growth and survival in forests of north-central Puerto Ricoen_US
dc.subjectSeedlingsen_US
dc.subjectForest gapsen_US
dc.subjectCanopy speciesen_US
dc.subject.lcshPlant populations--Effect of stress on--Puerto Ricoen_US
dc.subject.lcshPlant species diversity--Puerto Ricoen_US
dc.subject.lcshRegeneration (Botany)--Puerto Ricoen_US
dc.subject.lcshForest canopy gaps--Puerto Ricoen_US
dc.titlePost-hurricane growth and recruitment of plant species used by birds in Northern Puerto Ricoen_US
dc.typeThesisen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2004 Sustache-Sustache, José A.en_US
dc.contributor.committeeCollazo, Jaime A.
dc.contributor.committeeLewis, Allen R.
dc.contributor.representativeGonzález, Sally
thesis.degree.levelM.S.en_US
thesis.degree.disciplineBiologyen_US
dc.contributor.collegeCollege of Arts and Sciences - Sciencesen_US
dc.contributor.departmentDepartment of Biologyen_US
dc.description.graduationYear2004en_US


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    Items included under this collection are theses, dissertations, and project reports submitted as a requirement for completing a degree at UPR-Mayagüez.

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