From Gondwana to GAARlandia: Evolutionary history and biogeography of ogre‐faced spiders (Deinopis)

• DOI: 10.1111/jbi.13431
• Publication Date: 2018-09-26T01:30:50Z
• Authors: Lisa Chamberland; Anne McHugh; Sarah Kechejian; Greta J. Binford; Jason E. Bond; Jonathan Coddington; Gaynor Dolman; Chris A. Hamilton; Mark S. Harvey; Matjaž Kuntner; Ingi Agnarsson
• Keywords: Vicariance; Land bridge; Lineage (genetic)

Abstract Aim We explore the evolutionary history of ogre‐faced spiders ( Deinopis ) from their Early Cretaceous origins to present day. Specifically, we investigate how vicariance and dispersal have shaped distribution patterns this lineage. Within Caribbean, test role GAAR landia, a hypothesized land bridge that connected South America Greater Antilles during Eocene–Oligocene transition (~35–33 Ma), in biogeography . Taxon Araneae: Deinopidae: Location Caribbean islands, with additional global exemplars. Methods Combining standard Sanger sequence data an Anchored Hybrid Enrichment AHE phylogenomic dataset, use Bayesian inference estimate phylogenetic relationships “BioGeo BEARS ” is used landia hypothesis, pinpoint major events biogeographic Results The phylogeny supports nesting clade within continental grade. Model comparisons indicate as best fitting model, analyses reflect geologic Caribbean. Ancient recent overwater are also indicated There ancient 113 Ma split into Old New World clades. Main Conclusions corresponds well geography. This reflected support for hypothesis among islands mirroring nuances history. Overwater plays important lineage implicated colonization volcanic sedimentary Lesser “reverse” North America. spider family Deinopidae dating back Gondwana. While has clearly played genus, bears strong signature geological events.