Integrating genetic, functional and comparative approaches to understanding the history of adaptations to a novel environment: When and how did frogs colonize the coastal dry forest of Colombia?

Jackson Crawford, Andrew

Publication:
Integrating genetic, functional and comparative approaches to understanding the history of adaptations to a novel environment: When and how did frogs colonize the coastal dry forest of Colombia?

dc.contributor.author	Jackson Crawford, Andrew
dc.contributor.corporatename	Universidad de los Andes (Bogotá, Colombia)	spa
dc.contributor.researchgroup	COL0054598 - Sistematica y ecologia de anfibios y reptiles
dc.contributor.researchgroup	COL0101749 - BIOMICS
dc.coverage.projectdates	2013-2018	spa
dc.coverage.spatial	Colombia
dc.date.accessioned	2020-10-23T21:13:29Z
dc.date.accessioned	2020-12-17T23:53:21Z
dc.date.available	2020-10-23T21:13:29Z
dc.date.available	2020-12-17T23:53:21Z
dc.date.issued	2018-04
dc.description.abstract	Amphibians are thought to be individually sensitive to environmental conditions and evolutionary conservative in their abiotic niches over deep time, yet in Colombia we observe apparently closely related populations and species surviving in diverse habitats. The seasonally dry tropical forest (SDTF) of Colombia's Caribbean coast represents a unique yet endangered biome. Given its long dry season, the tropical animals and plants of this region must survive and reproduce under harsh conditions quite distinct from the neighboring environments of the wet biogeographic Chocó and the Andes mountains. The SDTF biome is thought to be no older than the Late Eocene, created by a steady decline in global temperature and humidity. Given its geographic isolation and relatively young age, we seek to understand the temporal and biogeographic origins of the SDTF fauna and elucidate potential adaptations that have allowed animals to survive in this relatively novel environment. The long dry season should be especially demanding on the frog fauna, since these animals are particularly susceptible to desiccation at all life stages. This proposal seeks to answer the following evolutionary questions. 1) What are the relative contributions of in situ diversification within the SDTF versus vicariance due to the rise of the Eastern Cordillera or colonization from neighboring biomes? 2) In the case of colonization, which neighboring biomes represent the ancestral areas of these lineages? 3) How old is the frog fauna of the SDTF? 4) What morphological, physiological or life-history adaptations have permitted these frogs to survive the marked seasonality of the SDTF? To address these questions we propose to integrate three approaches. First, we will combine genetic analyses of within-species diversity, i.e., a phylogeographic perspective, with morphological and bioacoustic data to clarify species boundaries in our focal taxa and estimate genetic connectivity among populations. Second, we will combine new genetic data with published molecular phylogenies to place frogs of the SDTF in larger historical context, and then use comparative approaches to study ancestral areas. Third, though extensive field and museum work we will collect comparative data on traits that we hypothesize could be involved in adaptation to the long dry season of the SDTF, and again use comparative approaches to study their evolution. Thus, the diverse environments of Colombia offer a unique opportunity to study the historical and adaptive processes driving the assembly of a novel community. Understanding the evolution of adaptations to extreme climates will also increase our ability to predict the response of amphibians to global climate change.	spa
dc.format.extent	58 páginas.	spa
dc.identifier.instname	Colciencias	spa
dc.identifier.reponame	Repositorio Colciencias	spa
dc.identifier.repourl	http://colciencias.metabiblioteca.com.co	spa
dc.identifier.uri	https://colciencias.metadirectorio.org/handle/11146/39134
dc.language.iso	spa	spa
dc.relation.ispartofseries	Informe;
dc.rights.accessrights	info:eu-repo/semantics/openAccess	spa
dc.rights.accessrights	http://purl.org/coar/access_right/c_abf2	spa
dc.rights.accessrights	info:eu-repo/semantics/openAccess	spa
dc.rights.accessrights	http://purl.org/coar/access_right/c_abf2	spa
dc.rights.creativecommons	https://creativecommons.org/licenses/by/4.0/	spa
dc.subject.proposal	Adaptation	spa
dc.subject.proposal	Ancestral areas	spa
dc.subject.proposal	Anura	spa
dc.subject.proposal	Community assembly	spa
dc.subject.proposal	Cutaneous water loss	spa
dc.subject.proposal	Divergence time	spa
dc.subject.proposal	Molecular phylogenetics	spa
dc.subject.proposal	Phylogeography	spa
dc.subject.proposal	Seasonally dry tropical forest	spa
dc.subject.proposal	Skin morphology	spa
dc.subject.proposal	Species delimitation	spa
dc.subject.proposal	Water absorption	spa
dc.title	Integrating genetic, functional and comparative approaches to understanding the history of adaptations to a novel environment: When and how did frogs colonize the coastal dry forest of Colombia?	spa
dc.type	Informe de investigación	spa
dc.type.coar	http://purl.org/coar/resource_type/c_93fc	spa
dc.type.content	Text	spa
dc.type.driver	info:eu-repo/semantics/report	spa
dc.type.redcol	https://purl.org/redcol/resource_type/PID	spa
dc.type.version	info:eu-repo/semantics/submittedVersion	spa
dc.type.version	http://purl.org/coar/version/c_71e4c1898caa6e32	spa
dc.type.version	info:eu-repo/semantics/submittedVersion	spa
dc.type.version	http://purl.org/coar/version/c_71e4c1898caa6e32	spa
dcterms.audience	Estudiantes, Profesores, Comunidad científica colombiana, etc.	spa
dspace.entity.type	Publication
oaire.awardnumber	120456934310	spa
oaire.funderidentifier.colciencias	0360-2013
oaire.fundername	Departamento Administrativo de Ciencia, Tecnología e Innovación [CO] Colciencias	spa
oaire.fundingstream	Programa Nacional en Ciencias Básicas	spa
oaire.objetives	We seek to reconstruct the temporal and phylogenetic history of the frog fauna of the Caribbean coast and infer mechanisms of adaptation to this harsh environment.	spa