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dc.contributor.advisorBird-Picó, Fernando J.
dc.contributor.authorRíos-Franceschi, Alejandro
dc.date.accessioned2018-03-26T15:49:34Z
dc.date.available2018-03-26T15:49:34Z
dc.date.issued2013
dc.identifier.urihttps://hdl.handle.net/20.500.11801/293
dc.description.abstractLa isla de Culebra, como parte del Banco Geográfico de Puerto Rico, ha sido un lugar el cual se han rezagado los estudios científicos. Estudios como el de Grant (1931) han servido de base para el presente trabajo. Los recursos de Culebra han sido perturbados desde principios del siglo 20 hasta los 1970’s. Desde ese entonces (1970’s), la reserva natural ha sido administrada por el Servicio Federal de Pesca y Vida Silvestre de los Estados Unidos. El propósito de este trabajo es actualizar el listado de especies de anfibios y reptiles, cómo también examinar como los cambios espaciales y temporales afectan la diversidad y la abundancia de la herpetofauna en esta isla. En este estudio, un total de 20 especies de 10 familias diferentes fueron detectadas, de las cuales Eleutherodactylus coqui y Eleutherodactylus cochranae fueron nuevos registros para Monte Resaca. Mientras, que Anolis pulchellus fue un registro nuevo para el Cayo de Luis Peña. En general, Monte Resaca tiene una mayor riqueza con 10 especies, entre reptiles y anfibios, que el Cayo de Luis Peña estas diferencias en los índices de Shannon-Wiener, Simpson y Margalef fueron estadísticamente significativas. Factores abióticos, tales como la temperatura y la humedad, tuvieron una participación en la abundancia de esta comunidad como también los factores bióticos, tales como la vegetación y la presencia de otras especies.
dc.description.abstractCulebra Island, as part of the Puerto Rican Bank, is a place that a lack of scientific studies. Studies such as Grant’s (1931) have provided the basis for this work. The island terrestrial resources have been disturbed since the early 20th century until the 1970s. Since then (1970’s), the natural reserve has been managed by the U.S. Fish and Wildlife Service. The purpose of this research is to update the species list as well as to examine how spatial and temporal changes affect the diversity and abundance of the herpetofauna on this island. In this study, 20 different species from 10 families were identified. Two new records for Mount Resaca were Eleutherodactylus coqui and Eleutherodactylus cochranae. Meanwhile Anolis pulchellus was a new report for the Luis Peña Cay. In general, Mount Resaca has greater richness than the Luis Peña Cay, with a total of 10 amphibian and reptile species, and these differences in Shannon Wiener, Simpson’s Index and Margalef’s index were statistically significant. Abiotic factors such as temperature and humidity had a share in the abundance of this community, as well as biotic factors such as vegetation and the presence of other species.
dc.description.sponsorshipU.S. Fish and Wildlife Service, especially to Ana M. Román. Dr. Domingo Rodríguez (Electrical Engineering Department at UPRM) for a research assistance grant through the NSF funded WALSAIP project.en_US
dc.language.isoenen_US
dc.subjectCulebra Islanden_US
dc.subjectU.S. Fish and Wildlife Serviceen_US
dc.subjectEleutherodactylus coqui and Eleutherodactylus cochranaeen_US
dc.subjectAnolis pulchellusen_US
dc.subject.lcshHerpetological surveys--Puerto Rico--Culebraen_US
dc.subject.lcshAmphibians--Puerto Rico--Culebraen_US
dc.subject.lcshReptiles--Puerto Rico--Culebraen_US
dc.subject.lcshBiotic communities--Puerto Rico--Culebraen_US
dc.titleSpatio-temporal changes of the herpetofaunal communities in Mount Resaca and Luis Peña Cay National Wildlife Refuges at Culebra Island, Puerto Ricoen_US
dc.typeThesisen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2013 Alejandro Ríos-Franceschien_US
dc.contributor.committeeSantos Flores, Carlos J.
dc.contributor.committeePuente Rolón, Alberto R.
dc.contributor.representativeRamírez, Lillian
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.graduationSemesterSpringen_US
dc.description.graduationYear2013en_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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