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Phylogeography of the cryptic species complex: Araneus bogotensis

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dc.contributor.advisorSalazar Clavijo, Camilo Andrés
dc.contributor.gruplacFiloevomica
dc.creatorSarmiento Cepeda, Juan Sebastián
dc.creatorGarrido, Daniel
dc.creatorCabra, Jimmy
dc.creatorSalgado, Fabian
dc.creatorSalazar Clavijo, Camilo Andrés
dc.creator.degreeBiólogo
dc.creator.degreeLevelPregrado
dc.creator.degreetypeFull time
dc.date.accessioned2024-04-04T21:06:08Z
dc.date.available2024-04-04T21:06:08Z
dc.date.created2024-03-22
dc.date.embargoEndinfo:eu-repo/date/embargoEnd/2026-04-05
dc.descriptionDescripción de los linajes crípticos dentro de la especie conocida como Araneus bogotensis por medio de método filogeneticos, filogeográficos y morfométricos.
dc.description.abstractBackground: Exploring the biodiversity of any taxon is an important task to disentangle the three of life. Genetics is a powerful tool to uncover biodiversity that eludes visual observation. Identification of cryptic species complexes has experienced a recent increase in the literature due to the inclusion of different types of genetic markers. However, there is still an important research gap in arachnids, where several morphospecies still lack genetic data and few studies explore the effects of biogeographic barriers in shaping their diversity. Spiders are well known to be important ecosystem regulators, yet some genera remain poorly studied. Araneus bogotensis, commonly known as a garden spider, exhibits a broad distribution in the Andes. Current classifications have approached it with caution due to its considerable morphological variation, making it an intriguing subject for investigation. We hypothesized that this species has a complex evolutionary history with multiple cryptic lineages. Methods: To test this hypothesis, we sequenced mitochondrial and nuclear markers, estimated divergence times, ran demographic and species delimitation models and employed a morphometric analysis. Results: Our findings revealed three independent structured lineages that cannot be differentiated by current taxonomic keys. The first lineage comprised most of Colombian populations here sampled, named here as Araneus bogotensis sensu stricto, the second lineage, with an estimated divergence time of 10.9 Mya, comprised individuals from a single population in Serranía del Perijá, North Colombia and the third and oldest lineage comprised a Southern Brazilian population with 18.5 Mya time of divergence. Furthermore, the analyses showed an additional four divergent lineages within A. bogotensis sensu stricto structured by the Magdalena River Valley acting as a strict barrier to gene flow. Conclusions: Our findings revealed cryptic species within what is called Araneus bogotensis, where the geomorphology of the Andes plays an important factor to lineages demography and diversification in Colombia and South America.
dc.format.extent53 pp
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.48713/10336_42395
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/42395
dc.language.isoeng
dc.publisherUniversidad del Rosario
dc.publisher.departmentFacultad de Ciencias Naturales
dc.publisher.programBiología
dc.rightsAttribution-NonCommercial-ShareAlike 4.0 International*
dc.rights.accesRightsinfo:eu-repo/semantics/embargoedAccess
dc.rights.accesoRestringido (Temporalmente bloqueado)
dc.rights.licenciaEL AUTOR, manifiesta que la obra objeto de la presente autorización es original y la realizó sin violar o usurpar derechos de autor de terceros, por lo tanto la obra es de exclusiva autoría y tiene la titularidad sobre la misma.spa
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/*
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dc.source.instnameinstname:Universidad del Rosario
dc.source.reponamereponame:Repositorio Institucional EdocUR
dc.subjectPhylogeography
dc.subjectCryptic Species Complex
dc.subjectAndes
dc.subjectAraneus
dc.subject.keywordPhylogeography
dc.subject.keywordCryptic Species Complex
dc.subject.keywordAndes
dc.subject.keywordAraneus
dc.titlePhylogeography of the cryptic species complex: Araneus bogotensis
dc.title.TranslatedTitleFilogeografía del complejo críptico de especies: araneus bogotensis
dc.typebachelorThesis
dc.type.documentTrabajo de grado
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersion
dc.type.spaTrabajo de grado
local.department.reportFacultad de Ciencias Naturales
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