Respuestas fenotípicas en aves andinas a cambios ambientales operando a escalas de tiempo contemporánea y evolutiva
dc.contributor.advisor | Cuervo Maya, Andrés Mauricio | |
dc.contributor.author | Váquiro García, Juan Camilo Di Carlo | |
dc.contributor.orcid | Váquiro-García, Juan Camilo [0000-0002-9481-6945] | |
dc.contributor.researchgroup | ORNIS: Evolución y Ecología de Aves | spa |
dc.contributor.scopus | Váquiro García, Juan Camilo [57428450100] | |
dc.coverage.country | Colombia | spa |
dc.date.accessioned | 2025-09-10T16:08:01Z | |
dc.date.available | 2025-09-10T16:08:01Z | |
dc.date.issued | 2025 | |
dc.description | ilustraciones (principalmente a color), diagramas, gráficos, fotografías, mapas | spa |
dc.description.abstract | El fenotipo como expresión visible resultante de la interacción entre la información genética y las condiciones ambientales, se manifiesta en múltiples formas y escenarios, permitiendo explorar la estabilidad y variabilidad de las especies en contextos ecológicos y evolutivos específicos. En este trabajo se evalúan respuestas fenotípicas expresadas a diferentes escalas temporales en aves andinas sometidas a diversas presiones ambientales, las cuales han moldeado la diversidad que conocemos en la actualidad. Por un lado, se analizaron rasgos morfométricos en una comunidad de aves de una misma área ubicada en la cordillera Oriental, separada por 60 años de transformaciones ambientales y paisajísticas. Mediante la implementación de modelos mixtos jerárquicos bayesianos, se identificaron tendencias relevantes como la reducción en la longitud del ala paralela al aumento en la longitud de la cola, junto con otros cambios morfométricos en el pico y el cuerpo, los cuales se relacionan con múltiples presiones y causas potenciales que podrían estar estimulando dichos patrones. Por otro lado, se realizó una evaluación vocal del complejo de subespecies de Synallaxis unirufa y sus especies hermanas Synallaxis fuscorufa y Synallaxis castanea, con el fin de revisar si la estructura vocal del complejo presentaba una divergencia suficiente en comparación con los análisis genéticos previos. Este complejo ha estado expuesto a múltiples cambios topográficos y ambientales que han favorecido el aislamiento entre poblaciones, las cuales, tras millones de años, podrían estar mostrando diferencias contundentes que sugieren la necesidad de una reestructuración taxonómica que la clasificación tradicional no ha permitido visualizar con suficiente detalle. | spa |
dc.description.abstract | The phenotype, as the visible expression resulting from the interaction between genetic information and environmental conditions, manifests itself in multiple forms and scenarios, allowing us to explore the stability and variability of species in specific ecological and evolutionary contexts. This study evaluates phenotypic responses expressed at different temporal scales in Andean birds subjected to various environmental pressures, which have shaped the diversity we know today. On the one hand, morphometric traits were analyzed in a bird community from the same area located in the Eastern Cordillera, separated by 60 years of environmental and landscape transformations. Through the implementation of Bayesian hierarchical mixed models, relevant trends were identified, such as the reduction in wing length parallel to the increase in tail length, along with other morphometric changes in the beak and body, which are related to multiple pressures and potential causes that could be stimulating these patterns. On the other hand, a vocal assessment of the Synallaxis unirufa subspecies complex and its sister species Synallaxis fuscorufa and Synallaxis castanea was carried out to review whether the vocal structure of the complex showed sufficient divergence compared to previous genetic analyses. This complex has been exposed to multiple topographical and environmental changes that have favored isolation between populations, which, after millions of years, could be showing striking differences that suggest the need for a taxonomic restructuring that traditional classification has not allowed to be visualized in sufficient detail. | eng |
dc.description.curriculararea | Biología.Sede Bogotá | spa |
dc.description.degreelevel | Maestría | spa |
dc.description.degreename | Magíster en Ciencias - Biología | spa |
dc.description.researcharea | Taxonomía y Evolución | |
dc.format.extent | viii, 83 páginas | |
dc.format.mimetype | application/pdf | |
dc.identifier.instname | Universidad Nacional de Colombia | spa |
dc.identifier.reponame | Repositorio Institucional Universidad Nacional de Colombia | spa |
dc.identifier.repourl | https://repositorio.unal.edu.co/ | spa |
dc.identifier.uri | https://repositorio.unal.edu.co/handle/unal/88694 | |
dc.language.iso | eng | |
dc.publisher | Universidad Nacional de Colombia | spa |
dc.publisher.branch | Universidad Nacional de Colombia - Sede Bogotá | spa |
dc.publisher.faculty | Facultad de Ciencias | spa |
dc.publisher.place | Bogotá | spa |
dc.publisher.program | Bogotá - Ciencias - Maestría en Ciencias - Biología | spa |
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dc.rights.accessrights | info:eu-repo/semantics/openAccess | |
dc.rights.license | Atribución-NoComercial-SinDerivadas 4.0 Internacional | spa |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.subject.ddc | 570 - Biología::576 - Genética y evolución | spa |
dc.subject.ddc | 570 - Biología::578 - Historia natural de los organismos y temas relacionados | spa |
dc.subject.ddc | 570 - Biología::577 - Ecología | spa |
dc.subject.lemb | Fenotipos | spa |
dc.subject.lemb | Phenotype | eng |
dc.subject.lemb | Aves | spa |
dc.subject.lemb | Birds | eng |
dc.subject.lemb | Tamizaje genético | spa |
dc.subject.lemb | Genetic screening | eng |
dc.subject.proposal | Morfometría | spa |
dc.subject.proposal | Divergencia vocal | spa |
dc.subject.proposal | Taxonomía | spa |
dc.subject.proposal | Aislamiento geográfico | spa |
dc.subject.proposal | Synallaxis unirufa | spa |
dc.subject.proposal | Plasticidad fenotípica | spa |
dc.subject.proposal | Morphometry | eng |
dc.subject.proposal | Vocal divergence | eng |
dc.subject.proposal | Taxonomy | eng |
dc.subject.proposal | Geographical isolation | eng |
dc.subject.proposal | Synallaxis unirufa | eng |
dc.subject.proposal | Phenotypic plasticity | eng |
dc.title | Respuestas fenotípicas en aves andinas a cambios ambientales operando a escalas de tiempo contemporánea y evolutiva | spa |
dc.title.translated | Phenotypic responses in Andean birds to environmental change operating at contemporary and evolutionary timescales | eng |
dc.type | Trabajo de grado - Maestría | spa |
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dc.type.redcol | http://purl.org/redcol/resource_type/TM | |
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