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dc.contributor.advisorSchizas, Nikolaos V.
dc.contributor.authorGarcía-Reyes, Joselyd
dc.description.abstractThe population genetic structure of the zooxanthellate corals Acropora palmata and A. cervicornis were used as a proxy to understand connectivity between reefs. Sequences of the mitochondrial control region were recovered from geographically adjacent and distant populations of A. palmata and A. cervicornis around Puerto Rico. AMOVA results from 220 A. palmata and 124 A. cervicornis colonies collected from 26 reefs of six localities suggest that significant population structure exists (ΦST=0.0863, P<0.00098; ΦST=0.1237, P<0.00587, for A. palmata and A. cervicornis, respectively). Significant ΦST’s between reefs of Puerto Rico suggest that there is fine scale population structure. Although these species displayed significant population structure, both species exhibited low levels of nucleotide diversity which is common for scleractinian corals. Recovery of reefs in southwestern Puerto Rico might rely on the survival and sexual reproduction of local populations rather than replenishment from distant reefs because of the high levels of population subdivision.en_US
dc.description.abstractLa estructura genética poblacional de los corales zooxantelados Acropora palmata y A. cervicornis fue usada como indicador para estudiar la conectividad entre arrecifes. Secuencias de la región control mitocondrial fueron recuperadas de poblaciones geográficamente adyacentes y distantes de A. palmata y A. cervicornis alrededor de Puerto Rico. Resultados de AMOVA para 220 colonias de A. palmata y 124 colonias de A. cervicornis muestreadas en 26 arrecifes en seis localidades sugieren que existe una estructura poblacional significativa (ΦST=0.0863, P<0.00098; ΦST=0.1237, P<0.00587, para A. palmata y A. cervicornis, respectivamente). Valores de ΦST’s significativos entre arrecifes en Puerto Rico sugiere que existe estructura poblacional a menor escala. Aunque estas especies revelan estructura poblacional significativa, las dos especies exhibieron bajos niveles de variabilidad genética lo cual es común entre corales escleractínios. La recuperación de los arrecifes en el suroeste de Puerto Rico podría depender de la sobrevivencia y reproducción sexual de poblaciones locales en lugar del abastecimiento por arrecifes distantes debido a los altos niveles de subdivisión poblacional.en_US
dc.description.sponsorshipDepartment of Marine Sciences from the University of Puerto Rico-Mayagüez; Sea Grant Puerto Rico; Caribbean Coral Reef Institute grant; Program Development grant from the Caribbean Marine Research Center (Project #05-PRKS-01-05A); Sigma Xi Grant-in-Aid of Research (ID Number: G20073121644256671); José M. Berrocal Scholarship; La Unidad Latina Foundation Leadership Award; UPRM-Department of Marine Sciences and a Sea Grant Seed Money; Puerto Rico Department of Natural and Environmental Resources; Sequencing and Genotyping facility of the University of Puerto Rico-Río Piedras; NCRR AABRE Grant #P20 RR16470; NIH-SCORE Grant #S06GM08102; University of Puerto Rico Biology Department; NSFCREST Grant #0206200en_US
dc.subjectCoral declines - Puerto Ricoen_US
dc.subjectZooxanthellate coral Acropora palmata - Population - Puerto Ricoen_US
dc.subjectZooxanthellate coral A. cervicornis - Population - Puerto Ricoen_US
dc.subjectMaintenance of coral reef productivity - Puerto Ricoen_US
dc.subject.lcshZooxanthellate corals -- Geneticsen_US
dc.subject.lcshCorals -- Puerto Ricoen_US
dc.subject.lcshReefs -- Caribbean Seaen_US
dc.subject.lcshElkhorn coralen_US
dc.subject.lcshAcropora cervicornisen_US
dc.titleGenetic variability and fine-scale population structure in the threatened species Acropora palmata and Acropora cervicornis around Puerto Ricoen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2008 Joselyd García Reyesen_US
dc.contributor.committeeWeil, Ernesto
dc.contributor.committeeYoshioka, Paul M.
dc.contributor.committeeAponte, Nilda E.
dc.contributor.representativeOjeda, Edgardo Sciencesen_US
dc.contributor.collegeCollege of Arts and Sciences - Sciencesen_US
dc.contributor.departmentDepartment of Marine Sciencesen_US

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