Model selection in statistical historical biogeography of Neotropical insects-The Exophthalmus genus complex (Curculionidae: Entiminae)

Molecular Phylogenetics and Evolution
Guanyang ZhangNico Franz

Abstract

Statistical historical biogeographic methods rely on models that represent various biogeographic processes. Until recently model selection in this domain was not widely used, and the impact of differential model selection on inferring biogeographic scenarios was not well understood. Focusing on Neotropical weevils in the Exophthalmus genus complex (EGC) (Insecta: Curculionidae: Entiminae), we compare three commonly used biogeographic models - DIVA (Dispersal-Vicariance Analysis), DEC (Dispersal-Extinction-Cladogenesis) and BayArea (Bayesian Analysis of Biogeography), and examine the impact of modeling founder-event jump dispersal on historical biogeographic reconstructions. We also investigate the biogeographic events that have shaped patterns of distribution, diversification, and endemism in this weevil lineage. We sample representatives of 65 species of the EGC and 26 outgroup terminals from the Neotropics, including Caribbean islands and the mainland. We reconstruct a molecular phylogeny based on six genes and apply molecular dating using a relaxed clock with three fossil calibration points. Historical biogeographic estimations and alternative biogeographic models are computed and compared with the R package BioGeoBEARS. Mod...Continue Reading

References

Dec 29, 2000·Nature·J B Losos, D Schluter
Dec 1, 2001·Annual Review of Entomology·Rosemary G Gillespie, George K Roderick
Mar 22, 2014·Proceedings. Biological Sciences·Rene TänzlerAlexander Riedel
Jul 25, 2014·Biodiversity Data Journal·Corinna GriesNico M Franz

Related Concepts

Metazoa
Bayesian Prediction
Calibration
Human Geography
Phylogeny
Tropical Climate
Two-Parameter Models
Weevils
Phylogeography
Exophthalmos

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