The hidden world of egg coloration: Exploring the drivers of variation in UV reflectance
Understanding how selection pressures operate at different evolutionary scales to promote diversity in various species' traits and phenotypes has long intrigued evolutionary biologists. In recent years, efforts have been made to comprehend the function of UV reflectance in avian eggs, leading t...
- Autores:
-
Mendiwelso Moreno, Maria Elisa
- Tipo de recurso:
- Trabajo de grado de pregrado
- Fecha de publicación:
- 2023
- Institución:
- Universidad de los Andes
- Repositorio:
- Séneca: repositorio Uniandes
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.uniandes.edu.co:1992/69438
- Acceso en línea:
- http://hdl.handle.net/1992/69438
- Palabra clave:
- Eggshell color
UV reflectance
Macroecological analysis
Light exposure
Biología
- Rights
- openAccess
- License
- Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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| dc.title.none.fl_str_mv |
The hidden world of egg coloration: Exploring the drivers of variation in UV reflectance |
| dc.title.alternative.none.fl_str_mv |
El mundo oculto de la coloración de los huevos: Exploración de los factores de variación de la reflectancia UV |
| title |
The hidden world of egg coloration: Exploring the drivers of variation in UV reflectance |
| spellingShingle |
The hidden world of egg coloration: Exploring the drivers of variation in UV reflectance Eggshell color UV reflectance Macroecological analysis Light exposure Biología |
| title_short |
The hidden world of egg coloration: Exploring the drivers of variation in UV reflectance |
| title_full |
The hidden world of egg coloration: Exploring the drivers of variation in UV reflectance |
| title_fullStr |
The hidden world of egg coloration: Exploring the drivers of variation in UV reflectance |
| title_full_unstemmed |
The hidden world of egg coloration: Exploring the drivers of variation in UV reflectance |
| title_sort |
The hidden world of egg coloration: Exploring the drivers of variation in UV reflectance |
| dc.creator.fl_str_mv |
Mendiwelso Moreno, Maria Elisa |
| dc.contributor.advisor.none.fl_str_mv |
Ocampo Rincón, David Cadena Ordóñez, Carlos Daniel |
| dc.contributor.author.none.fl_str_mv |
Mendiwelso Moreno, Maria Elisa |
| dc.contributor.researchgroup.es_CO.fl_str_mv |
Biología Evolutiva de Vertebrados (EVOLVERT) |
| dc.subject.keyword.none.fl_str_mv |
Eggshell color UV reflectance Macroecological analysis Light exposure |
| topic |
Eggshell color UV reflectance Macroecological analysis Light exposure Biología |
| dc.subject.themes.es_CO.fl_str_mv |
Biología |
| description |
Understanding how selection pressures operate at different evolutionary scales to promote diversity in various species' traits and phenotypes has long intrigued evolutionary biologists. In recent years, efforts have been made to comprehend the function of UV reflectance in avian eggs, leading to the proposal of different hypotheses. Among the most extensively studied are the UV resistance hypothesis and the egg detectability hypothesis, both of which we investigated in this study to determine to which one may explain patterns in UV reflectance and to evaluate the driving forces associated with such variation. This study is the first to take a large-scale macroecological view of eggshell UV coloration in novel data collected for over 500 avian species and analyzed using phylogenetic comparative methods. We identified the importance of brightness and the exposure of the nest in relation to the UV chroma reflected by the egg. Likewise, although we did not observe a statistically significant effect of nest type on UV reflectance, we did find patterns that, taking into account the mean UV reflectance measurements and character mapping, reveal greater support for the UV resistance hypothesis in Passeriformes and Charadriiformes, which could suggest future research. Overall, this research contributes to a deeper understanding of the mechanisms driving UV coloration in avian eggs and sheds light on the complex interplay between selection pressures and the evolution of species' traits. |
| publishDate |
2023 |
| dc.date.accessioned.none.fl_str_mv |
2023-08-08T19:24:58Z |
| dc.date.available.none.fl_str_mv |
2023-08-08T19:24:58Z |
| dc.date.issued.none.fl_str_mv |
2023-08-04 |
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Trabajo de grado - Pregrado |
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info:eu-repo/semantics/bachelorThesis |
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info:eu-repo/semantics/acceptedVersion |
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http://hdl.handle.net/1992/69438 |
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instname:Universidad de los Andes |
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reponame:Repositorio Institucional Séneca |
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| dc.language.iso.es_CO.fl_str_mv |
eng |
| language |
eng |
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Attribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Ocampo Rincón, Davidc8acf79f-0ca3-4226-b22e-1d1089143f0b600Cadena Ordóñez, Carlos Daniel8308cacd-eb61-4f56-9496-b997382da70d600Mendiwelso Moreno, Maria Elisaf1453d65-d195-4250-8271-d0c8b47a5217600Biología Evolutiva de Vertebrados (EVOLVERT)2023-08-08T19:24:58Z2023-08-08T19:24:58Z2023-08-04http://hdl.handle.net/1992/69438instname:Universidad de los Andesreponame:Repositorio Institucional Sénecarepourl:https://repositorio.uniandes.edu.co/Understanding how selection pressures operate at different evolutionary scales to promote diversity in various species' traits and phenotypes has long intrigued evolutionary biologists. In recent years, efforts have been made to comprehend the function of UV reflectance in avian eggs, leading to the proposal of different hypotheses. Among the most extensively studied are the UV resistance hypothesis and the egg detectability hypothesis, both of which we investigated in this study to determine to which one may explain patterns in UV reflectance and to evaluate the driving forces associated with such variation. This study is the first to take a large-scale macroecological view of eggshell UV coloration in novel data collected for over 500 avian species and analyzed using phylogenetic comparative methods. We identified the importance of brightness and the exposure of the nest in relation to the UV chroma reflected by the egg. Likewise, although we did not observe a statistically significant effect of nest type on UV reflectance, we did find patterns that, taking into account the mean UV reflectance measurements and character mapping, reveal greater support for the UV resistance hypothesis in Passeriformes and Charadriiformes, which could suggest future research. Overall, this research contributes to a deeper understanding of the mechanisms driving UV coloration in avian eggs and sheds light on the complex interplay between selection pressures and the evolution of species' traits.Entender cómo operan las presiones de selección a diferentes escalas evolutivas para promover la diversidad en los rasgos y fenotipos de diversas especies ha intrigado durante mucho tiempo a los biólogos evolutivos. En los últimos años, se han hecho esfuerzos para comprender la función de la reflectancia UV en los huevos de las aves, lo que ha llevado a proponer diferentes hipótesis. Entre las más ampliamente estudiadas se encuentran la hipótesis de la resistencia a los rayos UV y la hipótesis de la detectabilidad del huevo, las cuales investigamos en este estudio para determinar cuál de ellas podría explicar patrones en la reflectancia UV y evaluar las fuerzas impulsoras asociadas a dicha variación. Este estudio es el primero que adopta una visión macroecológica a gran escala sobre la coloración UV de la cáscara de los huevos usando datos nuevos de más de 500 especies de aves analizados con métodos filogenéticos comparativos. Identificamos la importancia del brillo y la exposición del nido en relación con el croma UV reflejado por el huevo. Asimismo, aunque no observamos un efecto estadísticamente significativo del tipo de nido sobre la reflectancia UV, si observamos patrones que, tomando en cuenta la media de las medidas de la reflectancia UV y el mapeo de caracteres, indican que hay un mayor apoyo a la hipótesis de la resistencia UV, particularmente en Passeriformes y Charadriiformes, lo que abre la puerta para futuras investigaciones. En general, esta investigación contribuye a una comprensión más profunda de los mecanismos que impulsan la coloración UV en los huevos de las aves y arroja luz sobre la compleja interacción entre las presiones de selección y la evolución de los rasgos de las especies.Neotropical Ornithological SocietyBiólogoPregrado30 páginasapplication/pdfengUniversidad de los AndesBiologíaFacultad de CienciasDepartamento de Ciencias BiológicasThe hidden world of egg coloration: Exploring the drivers of variation in UV reflectanceEl mundo oculto de la coloración de los huevos: Exploración de los factores de variación de la reflectancia UVTrabajo de grado - Pregradoinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_7a1fTexthttp://purl.org/redcol/resource_type/TPEggshell colorUV reflectanceMacroecological analysisLight exposureBiologíaCherry, M. I., & Bennett, T. D. (2001). 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