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dc.contributor.author
Sánchez Restrepo, Andrés Fernando
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dc.contributor.author
Confalonieri, Viviana Andrea
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dc.contributor.author
Calcaterra, Luis Alberto
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dc.date.available
2023-12-13T15:16:30Z
dc.date.issued
2023-09
dc.identifier.citation
Sánchez Restrepo, Andrés Fernando; Confalonieri, Viviana Andrea; Calcaterra, Luis Alberto; The origin and spread of the southern black ant, a widely distributed leaf-cutting ant; Wiley Blackwell Publishing, Inc; Journal of Biogeography; 50; 9; 9-2023; 1519-1532
dc.identifier.issn
0305-0270
dc.identifier.uri
http://hdl.handle.net/11336/220162
dc.description.abstract
Aim: The existence of past connections between different regions through corridors has influenced the diversification of the biota in South America. Evidence of such connections in southern South America is scarce and poorly understood. As a model to analyse the existence of these corridors we study the evolutionary history of a widely distributed leaf-cutting ant by inferring its origin, historical demographic and dispersal processes, and explore for evidence that relates its evolutionary history to geoclimatic events. Location: Southern South America. Taxon: Southern black ant (Acromyrmex lobicornis). Methods: A total of 215 samples were obtained from Argentina, Uruguay and Bolivia. A time-calibrated phylogenetic tree, using a fossilised birth–death process model, was obtained using one mitochondrial and four nuclear molecular markers. Historical demographic processes were inferred using coalescence-based methodologies. A Bayesian continuous phylogeographical diffusion model was used to estimate the geographical origin and infer its spread routes. Results: A. lobicornis has two main occurrence areas: one goes through the Arid diagonal in Argentina up to Bolivia, and the other goes from central Uruguay up to southern Brazil. Both areas are connected by scattered populations distributed along the Espinal ecoregion in Argentina. The estimated crown age is ~1.2 Ma (early Pleistocene). The origin of the species was located between the High Monte and Dry Chaco ecoregions, from where it dispersed along the Arid diagonal and towards the east into the Uruguayan Savannas through the Espinal. Main Conclusions: The Espinal has an important role as a bridge for the dispersion and posterior maintaining of the genetic flow between populations of A. lobicornis, a corridor that could have been also used by other species. As opposed to the previous hypothesis that postulated its origin in a humid subtropical region, this study provides novel evidence placing the origin of A. lobicornis in an arid subtropical region.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
FORMICIDAE
dc.subject
HYMENOPTERA
dc.subject
MONTE DESERT
dc.subject
PHYLOGEOGRAPHY
dc.subject
SOUTH AMERICA
dc.subject.classification
Genética y Herencia
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
The origin and spread of the southern black ant, a widely distributed leaf-cutting ant
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-12-12T15:46:38Z
dc.journal.volume
50
dc.journal.number
9
dc.journal.pagination
1519-1532
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Sánchez Restrepo, Andrés Fernando. Fundación para el Estudio de Especies Invasivas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Confalonieri, Viviana Andrea. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Grupo de Investigación en Filogeografía y Filogenias Moleculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Calcaterra, Luis Alberto. Fundación para el Estudio de Especies Invasivas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Journal of Biogeography
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1111/jbi.14685
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/jbi.14685
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