Biogeography, ancestral niches, and future geographic ranges in Monkey frogs

Geological events and the formation of bioclimatic regions contribute to shape the current herpetofauna in South America. Monkey frogs of the genus Phyllomedusa have been widely studied in past decades mainly because of the bioactive peptides present in their skin. Yet few studies have assessed the...

Full description

Autores:
González Valenzuela, Laura Estefanía
Tipo de recurso:
Trabajo de grado de pregrado
Fecha de publicación:
2017
Institución:
Universidad de los Andes
Repositorio:
Séneca: repositorio Uniandes
Idioma:
eng
OAI Identifier:
oai:repositorio.uniandes.edu.co:1992/61533
Acceso en línea:
http://hdl.handle.net/1992/61533
Palabra clave:
Phyllomedusinae
Rights
openAccess
License
http://creativecommons.org/licenses/by-nc-sa/4.0/
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dc.title.spa.fl_str_mv Biogeography, ancestral niches, and future geographic ranges in Monkey frogs
title Biogeography, ancestral niches, and future geographic ranges in Monkey frogs
spellingShingle Biogeography, ancestral niches, and future geographic ranges in Monkey frogs
Phyllomedusinae
title_short Biogeography, ancestral niches, and future geographic ranges in Monkey frogs
title_full Biogeography, ancestral niches, and future geographic ranges in Monkey frogs
title_fullStr Biogeography, ancestral niches, and future geographic ranges in Monkey frogs
title_full_unstemmed Biogeography, ancestral niches, and future geographic ranges in Monkey frogs
title_sort Biogeography, ancestral niches, and future geographic ranges in Monkey frogs
dc.creator.fl_str_mv González Valenzuela, Laura Estefanía
dc.contributor.advisor.none.fl_str_mv Crawford, Andrew Jackson
dc.contributor.author.none.fl_str_mv González Valenzuela, Laura Estefanía
dc.subject.keyword.spa.fl_str_mv Phyllomedusinae
topic Phyllomedusinae
description Geological events and the formation of bioclimatic regions contribute to shape the current herpetofauna in South America. Monkey frogs of the genus Phyllomedusa have been widely studied in past decades mainly because of the bioactive peptides present in their skin. Yet few studies have assessed the phylogenetic relations within this genus and little is known about the causes of species diversity. Likewise changes in species distribution under climate change conditions has not been assessed. This study analyzed phylogenetic relations within the clade formed by the P. tarsius and P. burmeisteri groups including Phyllomedusa bicolor and Phyllomedusa vaillanti. The data set comprised sequences from GenBank plus molecular data obtained in this study for P. bicolor, P.vaillanti, and P. venusta. This latter species lacked any previously available molecular data in GenBank, and its phylogenetic position remained unknown until this study. Niche modelling was performed for each species under current conditions and projected onto future climatic conditions to compare predicated changes in area between current and future model distributions. Bayesian molecular phylogenetic analyses of divergence times showed that the divergence of P. venusta occurred during and after the final uplift of the Eastern Cordillera, which might have promoted a speciation event by isolating an ancestral population of P. venusta. The formation of a dry forest ecosystem due to a rain shadow effect could have also trigger the speciation process that gave rise to P. venusta, which occurs in the dry forest of the Magdalena valley located between the Central and the Eastern cordilleras. Niche modeling suggested that species from Caribbean coast dry forest might experience the highest area lost, with approximate 80% reduction between current and future distribution. Niche model of species with subtropical distribution showed the least area reduction.
publishDate 2017
dc.date.issued.spa.fl_str_mv 2017
dc.date.accessioned.none.fl_str_mv 2022-09-26T22:24:48Z
dc.date.available.none.fl_str_mv 2022-09-26T22:24:48Z
dc.type.spa.fl_str_mv Trabajo de grado - Pregrado
dc.type.driver.spa.fl_str_mv info:eu-repo/semantics/bachelorThesis
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dc.identifier.instname.spa.fl_str_mv instname:Universidad de los Andes
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dc.language.iso.spa.fl_str_mv eng
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dc.format.extent.spa.fl_str_mv 19 hojas
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dc.publisher.spa.fl_str_mv Universidad de los Andes
dc.publisher.program.spa.fl_str_mv Biología
dc.publisher.faculty.spa.fl_str_mv Facultad de Ciencias
dc.publisher.department.spa.fl_str_mv Departamento de Ciencias Biológicas
institution Universidad de los Andes
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spelling Al consultar y hacer uso de este recurso, está aceptando las condiciones de uso establecidas por los autores.http://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Crawford, Andrew Jacksona90d0e65-d08f-479f-9712-d552c88cfb0b500González Valenzuela, Laura Estefaníac8bdc044-7d17-4557-8500-e0a820ecbe2c4002022-09-26T22:24:48Z2022-09-26T22:24:48Z2017http://hdl.handle.net/1992/61533instname:Universidad de los Andesreponame:Repositorio Institucional Sénecarepourl:https://repositorio.uniandes.edu.co/795242-1001Geological events and the formation of bioclimatic regions contribute to shape the current herpetofauna in South America. Monkey frogs of the genus Phyllomedusa have been widely studied in past decades mainly because of the bioactive peptides present in their skin. Yet few studies have assessed the phylogenetic relations within this genus and little is known about the causes of species diversity. Likewise changes in species distribution under climate change conditions has not been assessed. This study analyzed phylogenetic relations within the clade formed by the P. tarsius and P. burmeisteri groups including Phyllomedusa bicolor and Phyllomedusa vaillanti. The data set comprised sequences from GenBank plus molecular data obtained in this study for P. bicolor, P.vaillanti, and P. venusta. This latter species lacked any previously available molecular data in GenBank, and its phylogenetic position remained unknown until this study. Niche modelling was performed for each species under current conditions and projected onto future climatic conditions to compare predicated changes in area between current and future model distributions. Bayesian molecular phylogenetic analyses of divergence times showed that the divergence of P. venusta occurred during and after the final uplift of the Eastern Cordillera, which might have promoted a speciation event by isolating an ancestral population of P. venusta. The formation of a dry forest ecosystem due to a rain shadow effect could have also trigger the speciation process that gave rise to P. venusta, which occurs in the dry forest of the Magdalena valley located between the Central and the Eastern cordilleras. Niche modeling suggested that species from Caribbean coast dry forest might experience the highest area lost, with approximate 80% reduction between current and future distribution. Niche model of species with subtropical distribution showed the least area reduction.Diferentes eventos geológicos y la gestación de las regiones bioclimáticas en Latinoamérica son factores que han contribuido a generar la herpeto-fauna actual en el continente. Las ranas mono del género Phyllomedusa han sido objeto de estudio durante las últimas décadas debido a los péptidos bioactivos presentes en su piel, sin embargo poco se conoce sobre las relaciones filogenéticas o los procesos de especiación que dieron origen a la diversidad de especies dentro del género. Así mismo poco se ha estudiado sobre el cambio en la distribución de las especies bajo un escenario de cambio climático. En este estudio se analizaron las relaciones filogenéticas dentro del clado formado por el grupo tarsius y burmeisteri junto con las especies P. bicolor y P.vaillanti, con datos moleculares provenientes de Genbank para la mayoría de especies. Se incluyeron secuencias de P. bicolor, P.vaillanti y P. venusta, obtenidas en este estudio, ya que no hay información molecular disponible para P. venusta y por lo tanto su posición filogenética e historia evolutiva son desconocidas. Se realizaron modelamientos de nicho bajo condiciones climáticas actuales y de cambio climático para el año 2070 para analizar el delta de cambio en el área de ocurrencia de las especies del clado. Los análisis de inferencia bayesiana evidencian que la separación de P. venusta ocurrió durante el levantamiento final de la Cordillera Oriental de los Andes y continuó aún después de que la cordillera alcanzó su elevación actual. La generación de un ecosistema de bosque seco dado por el efecto de sombra de lluvia podría haber promovido el proceso de especiación que dio origen a P. venusta, especie que actualmente ocurre en el valle del Magdalena localizado entre la cordillera central y oriental. Los análisis de modelamiento de nicho indican que las especies de bosque seco de la costa caribe podrían experimentar las mayores pérdidas de área bajo futuros escenarios de cambio climático.--Tomado del Formato de Documento de Grado.BiólogoPregrado19 hojasapplication/pdfengUniversidad de los AndesBiologíaFacultad de CienciasDepartamento de Ciencias BiológicasBiogeography, ancestral niches, and future geographic ranges in Monkey frogsTrabajo de grado - Pregradoinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_7a1fTexthttp://purl.org/redcol/resource_type/TPPhyllomedusinae201114995PublicationTEXT12960.pdf.txt12960.pdf.txtExtracted texttext/plain28807https://repositorio.uniandes.edu.co/bitstreams/e8473b83-ec88-46d8-81f7-8d8c28a7004a/download1da952a00a1aba67dbe656b252b995d1MD52ORIGINAL12960.pdfapplication/pdf1109175https://repositorio.uniandes.edu.co/bitstreams/abaa6d2f-7678-41e8-a517-1790bb360589/download6785d24f0e6f848f8b234adfb5dc322cMD51THUMBNAIL12960.pdf.jpg12960.pdf.jpgIM Thumbnailimage/jpeg7401https://repositorio.uniandes.edu.co/bitstreams/0d512414-179b-48af-b831-bc37a642840a/download09a8141f1316e30b58a5774256c1c9dbMD531992/61533oai:repositorio.uniandes.edu.co:1992/615332023-10-10 17:42:01.909http://creativecommons.org/licenses/by-nc-sa/4.0/open.accesshttps://repositorio.uniandes.edu.coRepositorio institucional Sénecaadminrepositorio@uniandes.edu.co