Ítem
Acceso Abierto

Consistent phenological shifts in the making of a biodiversity hotspot: the cape flora

Mostrar el registro sencillo de la publicación
dc.creatorWarren, Ben Hspa
dc.creatorBakker, Freek Tspa
dc.creatorBellstedt, Dirk Uspa
dc.creatorBytebier, Bennyspa
dc.creatorClaßen-Bockhoff, Reginespa
dc.creatorDreyer, Léanne Lspa
dc.creatorRichardson, James-Edwardspa
dc.date.accessioned2020-08-19T14:42:07Z
dc.date.available2020-08-19T14:42:07Z
dc.date.created2011-02-08spa
dc.description.abstractThe best documented survival responses of organisms to past climate change on short (glacial-interglacial) timescales are distributional shifts. Despite ample evidence on such timescales for local adaptations of populations at specific sites, the long-term impacts of such changes on evolutionary significant units in response to past climatic change have been little documented. Here we use phylogenies to reconstruct changes in distribution and flowering ecology of the Cape flora - South Africa's biodiversity hotspot - through a period of past (Neogene and Quaternary) changes in the seasonality of rainfall over a timescale of several million years. Results Forty-three distributional and phenological shifts consistent with past climatic change occur across the flora, and a comparable number of clades underwent adaptive changes in their flowering phenology (9 clades; half of the clades investigated) as underwent distributional shifts (12 clades; two thirds of the clades investigated). Of extant Cape angiosperm species, 14-41% have been contributed by lineages that show distributional shifts consistent with past climate change, yet a similar proportion (14-55%) arose from lineages that shifted flowering phenology. Conclusions Adaptive changes in ecology at the scale we uncover in the Cape and consistent with past climatic change have not been documented for other floras. Shifts in climate tolerance appear to have been more important in this flora than is currently appreciated, and lineages that underwent such shifts went on to contribute a high proportion of the flora's extant species diversity. That shifts in phenology, on an evolutionary timescale and on such a scale, have not yet been detected for other floras is likely a result of the method used; shifts in flowering phenology cannot be detected in the fossil record.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1186/1471-2148-11-39
dc.identifier.issnEISSN: 1471-2148
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/27418
dc.language.isoengspa
dc.publisherBioMed Centralspa
dc.relation.citationIssueNo. 29
dc.relation.citationTitleBMC Evolutionary Biology
dc.relation.citationVolumeVol. 11
dc.relation.ispartofBMC Evolutionary Biology, EISSN: 1471-2148, Vol.11, No.29 (2011); 11 pp.spa
dc.relation.urihttps://bmcevolbiol.biomedcentral.com/track/pdf/10.1186/1471-2148-11-39spa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
dc.sourceBMC Evolutionary Biologyspa
dc.source.instnameinstname:Universidad del Rosario
dc.source.reponamereponame:Repositorio Institucional EdocUR
dc.subject.keywordFossil recordspa
dc.subject.keywordWinter rainfallspa
dc.subject.keywordFlower durationspa
dc.subject.keywordDistributional shiftspa
dc.subject.keywordFlowering phenologyspa
dc.titleConsistent phenological shifts in the making of a biodiversity hotspot: the cape floraspa
dc.title.TranslatedTitleCambios fenológicos constantes en la creación de un hotspot de biodiversidad: la flora del cabospa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
Archivos
Bloque original
Mostrando1 - 1 de 1
Miniatura
Nombre:
1471-2148-11-39.pdf
Tamaño:
1.28 MB
Formato:
Adobe Portable Document Format
Descripción:
Descargar
Colecciones
Artículos