Contribution of differential diversification rates to current broad-scale patterns os species richness in south american birds
Multiple studies have revealed relationships between current spatial patterns of species richness and various environmental factors. However, little is known about the origin of these relationships in terms of processes of speciation, extinction, and immigration. The diversification rate hypothesis...
- Autores:
-
Sanín Riaño, Camilo
- Tipo de recurso:
- Fecha de publicación:
- 2010
- Institución:
- Universidad de los Andes
- Repositorio:
- Séneca: repositorio Uniandes
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.uniandes.edu.co:1992/11239
- Acceso en línea:
- http://hdl.handle.net/1992/11239
- Palabra clave:
- Diversidad biológica - Investigaciones - América del Sur
Aves cantoras
Biología
- Rights
- openAccess
- License
- http://creativecommons.org/licenses/by-nc-sa/4.0/
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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_abf2Cadena Ordóñez, Carlos Daniel8308cacd-eb61-4f56-9496-b997382da70d600Sanín Riaño, Camilo3ed75329-3f4f-4cf0-afd2-0efb15014e4d6002018-09-28T07:50:51Z2018-09-28T07:50:51Z2010http://hdl.handle.net/1992/11239u429328.pdfinstname:Universidad de los Andesreponame:Repositorio Institucional Sénecarepourl:https://repositorio.uniandes.edu.co/Multiple studies have revealed relationships between current spatial patterns of species richness and various environmental factors. However, little is known about the origin of these relationships in terms of processes of speciation, extinction, and immigration. The diversification rate hypothesis holds that correlations between spatial patterns of current richness and environmental factors result from spatial variation in diversification, the balance between speciation and extinction. Variants of this hypothesis propose mechanisms by which particular environmental factors may affect current richness through their effect on diversification. The species-energy hypothesis proposes that energy availability increases diversification through its effect on the number of individuals co-occurring in an area and concomitant decrease in extinction rate or increase speciation rate. The evolutionary speed hypothesis suggests that higher temperatures increase speciation rate by increasing mutation rates and decreasing generation times. The spatial heterogeneity hypothesis asserts that spatial variation in environmental conditions within an area increases diversification because it fosters speciation by increasing opportunities for isolation and ecological divergence, or because it decreases extinction rates by allowing species to track climatic oscillations more readily. Empirical studies assessing the relative importance of the diversification rate hypothesis and its variants are rare. Here, we used a database on the spatial richness pattern of suboscine birds across South America in conjunction with a time-calibrated phylogeny to measure how much of the current spatial variance in richness can be explained by the diversification rate hypothesis and its variants.Magíster en Ciencias BiológicasMaestría29 hojasapplication/pdfengUniandesMaestría en Ciencias BiológicasFacultad de CienciasDepartamento de Biologíainstname:Universidad de los Andesreponame:Repositorio Institucional SénecaContribution of differential diversification rates to current broad-scale patterns os species richness in south american birdsTrabajo de grado - Maestríainfo:eu-repo/semantics/masterThesishttp://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/TMDiversidad biológica - Investigaciones - América del SurAves cantorasBiologíaPublicationTEXTu429328.pdf.txtu429328.pdf.txtExtracted texttext/plain53717https://repositorio.uniandes.edu.co/bitstreams/41de8cf0-9a9e-4168-b03d-580fceb0e290/download9e852fdc91a86747bf65fad829bbddf4MD54ORIGINALu429328.pdfapplication/pdf3209834https://repositorio.uniandes.edu.co/bitstreams/1da813bd-386b-477f-960a-1b5790231f59/downloada843aca0fd1d65c5eee5cea188830c1cMD51THUMBNAILu429328.pdf.jpgu429328.pdf.jpgIM Thumbnailimage/jpeg27456https://repositorio.uniandes.edu.co/bitstreams/13889885-66ec-456e-8127-d6b22fdfbf50/download378aa4e73a088d3d42cf027149e40f1fMD551992/11239oai:repositorio.uniandes.edu.co:1992/112392023-10-10 19:25:29.328http://creativecommons.org/licenses/by-nc-sa/4.0/open.accesshttps://repositorio.uniandes.edu.coRepositorio institucional Sénecaadminrepositorio@uniandes.edu.co |
dc.title.es_CO.fl_str_mv |
Contribution of differential diversification rates to current broad-scale patterns os species richness in south american birds |
title |
Contribution of differential diversification rates to current broad-scale patterns os species richness in south american birds |
spellingShingle |
Contribution of differential diversification rates to current broad-scale patterns os species richness in south american birds Diversidad biológica - Investigaciones - América del Sur Aves cantoras Biología |
title_short |
Contribution of differential diversification rates to current broad-scale patterns os species richness in south american birds |
title_full |
Contribution of differential diversification rates to current broad-scale patterns os species richness in south american birds |
title_fullStr |
Contribution of differential diversification rates to current broad-scale patterns os species richness in south american birds |
title_full_unstemmed |
Contribution of differential diversification rates to current broad-scale patterns os species richness in south american birds |
title_sort |
Contribution of differential diversification rates to current broad-scale patterns os species richness in south american birds |
dc.creator.fl_str_mv |
Sanín Riaño, Camilo |
dc.contributor.advisor.none.fl_str_mv |
Cadena Ordóñez, Carlos Daniel |
dc.contributor.author.none.fl_str_mv |
Sanín Riaño, Camilo |
dc.subject.keyword.es_CO.fl_str_mv |
Diversidad biológica - Investigaciones - América del Sur Aves cantoras |
topic |
Diversidad biológica - Investigaciones - América del Sur Aves cantoras Biología |
dc.subject.themes.none.fl_str_mv |
Biología |
description |
Multiple studies have revealed relationships between current spatial patterns of species richness and various environmental factors. However, little is known about the origin of these relationships in terms of processes of speciation, extinction, and immigration. The diversification rate hypothesis holds that correlations between spatial patterns of current richness and environmental factors result from spatial variation in diversification, the balance between speciation and extinction. Variants of this hypothesis propose mechanisms by which particular environmental factors may affect current richness through their effect on diversification. The species-energy hypothesis proposes that energy availability increases diversification through its effect on the number of individuals co-occurring in an area and concomitant decrease in extinction rate or increase speciation rate. The evolutionary speed hypothesis suggests that higher temperatures increase speciation rate by increasing mutation rates and decreasing generation times. The spatial heterogeneity hypothesis asserts that spatial variation in environmental conditions within an area increases diversification because it fosters speciation by increasing opportunities for isolation and ecological divergence, or because it decreases extinction rates by allowing species to track climatic oscillations more readily. Empirical studies assessing the relative importance of the diversification rate hypothesis and its variants are rare. Here, we used a database on the spatial richness pattern of suboscine birds across South America in conjunction with a time-calibrated phylogeny to measure how much of the current spatial variance in richness can be explained by the diversification rate hypothesis and its variants. |
publishDate |
2010 |
dc.date.issued.none.fl_str_mv |
2010 |
dc.date.accessioned.none.fl_str_mv |
2018-09-28T07:50:51Z |
dc.date.available.none.fl_str_mv |
2018-09-28T07:50:51Z |
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Trabajo de grado - Maestría |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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info:eu-repo/semantics/masterThesis |
dc.type.content.spa.fl_str_mv |
Text |
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http://purl.org/redcol/resource_type/TM |
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http://hdl.handle.net/1992/11239 |
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u429328.pdf |
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reponame:Repositorio Institucional Séneca |
dc.identifier.repourl.spa.fl_str_mv |
repourl:https://repositorio.uniandes.edu.co/ |
url |
http://hdl.handle.net/1992/11239 |
identifier_str_mv |
u429328.pdf instname:Universidad de los Andes reponame:Repositorio Institucional Séneca repourl:https://repositorio.uniandes.edu.co/ |
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eng |
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eng |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ |
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info:eu-repo/semantics/openAccess |
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openAccess |
dc.format.extent.es_CO.fl_str_mv |
29 hojas |
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Uniandes |
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Maestría en Ciencias Biológicas |
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Facultad de Ciencias |
dc.publisher.department.es_CO.fl_str_mv |
Departamento de Biología |
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