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dc.contributor.advisorFranz, Nico M.
dc.contributor.authorMazo-Vargas, Anyimilehidi
dc.date.accessioned2018-02-27T19:54:03Z
dc.date.available2018-02-27T19:54:03Z
dc.date.issued2011
dc.identifier.urihttps://hdl.handle.net/20.500.11801/273
dc.description.abstractPhylogenetic as well as phylogeographic methods were implemented to assess the diversification of Caribbean entimine weevils. (1) A phylogeny of 62 species of entimine weevils (Coleoptera: Curculionidae: Entiminae) in the tribes Eustylini Lacordaire and Geonemini Gistel was inferred based on a combined analysis of mitochondrial COI and nuclear EF-1α markers. The analysis recovered a monophyletic ingroup with four major lineages. A TreeMap analysis yielded zero cospeciation events, due to an apparent lack of sufficiently narrow and stable host associations. In contrast, a DIVA optimization of ancestral areas revealed 15 inter-island and two intra-island splits along the internal nodes of the phylogeny. (2) A phylogeographic analysis was performed to assess the historical relationships of Diaprepes abbreviatus of the islands Dominica, Hispanola (Dominican Republic), Puerto Rico, and Mona. Also the patterns of genetic variation and diversity were examine within islands and between the main phylogenetic clades observed.
dc.description.abstractSe implementaron métodos filogenéticos y filogeográficos para evaluar la diversificación de escarabajos picudos entiminos (Coleoptera: Curculionidae: Entiminae) del Caribe. (1) Se infirió una filogenia de 62 especies de escarabajos de las tribus Eustylini Lacordaire y Geonemini Gistel basado en los marcadores mitocondrial (COI) y nuclear (EF-1α). Se observó un grupo interno monofilético con cuatro linajes principales. Cero eventos de co-especiación fueron observados del análisis en TreeMap, debido a una aparente ausencia de asociaciones estrechas y estables entre escarabajos y plantas hospederas. En contraste, optimización de áreas ancestrales en DIVA reveló 15 divergencias inter-islas y dos intra-islas a lo largo de los nodos internos de la filogenia. (2) Un análisis filogeográfico fue realizado para evaluar las relaciones históricas de Diaprepes abbreviatus en las islas de Dominica, La Española (República Dominicana), Puerto Rico, y Mona. Patrones de variación y diversidad genética fueron examinados en las islas y entre los principales clados filogenéticos observados.
dc.description.sponsorshipMinistro de Ambiente, Vivienda y Desarrollo Territorial (MAVDT); Dominica's Forestry & Wildlife Division (DFWD); Secretaría de Estado de Medio Ambiente y Recursos Naturales (SEMARENA), Natural Resources Conservation Authority (NRCA), and the Departamento de Recursos Naturales y Ambientales (DRNA) The National Science Foundation, grant DEB-641231en_US
dc.language.isoenen_US
dc.subjectDiversification of Caribbean entimine weevilsen_US
dc.subjectPhylogeneticen_US
dc.subjectPhylogeographic methodsen_US
dc.subjectColeoptera: Curculionidae: Entiminaeen_US
dc.subject.lcshCurculionidae--Puerto Ricoen_US
dc.subject.lcshPhylogenyen_US
dc.subject.lcshPhylogeography--Puerto Ricoen_US
dc.subject.lcshMitochondrial DNA--Puerto Ricoen_US
dc.subject.lcshHost plants--Puerto Ricoen_US
dc.titleUntangling the effects of biogeography and host plant associations: phylogenetic and phylogeographic studies in the Exophthalmus genus complexen_US
dc.typeThesisen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2011 Anyimilehidi Mazo-Vargasen_US
dc.contributor.committeeMartínez-Cruzado, Juan Carlos
dc.contributor.committeeCafaro, Matias J.
dc.contributor.representativeNieto, Miriam
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.graduationYear2011en_US


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