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From Gondwana to GAAR landia: Evolutionary history and biogeography of ogre‐faced spiders ( Deinopis )
Author(s) -
Chamberland Lisa,
McHugh Anne,
Kechejian Sarah,
Binford Greta J.,
Bond Jason E.,
Coddington Jonathan,
Dolman Gaynor,
Hamilton Chris A.,
Harvey Mark S.,
Kuntner Matjaž,
Agnarsson Ingi
Publication year - 2018
Publication title -
journal of biogeography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 158
eISSN - 1365-2699
pISSN - 0305-0270
DOI - 10.1111/jbi.13431
Subject(s) - biological dispersal , biogeography , vicariance , land bridge , lineage (genetic) , gondwana , phylogeography , biology , ecology , paleontology , evolutionary biology , phylogenetic tree , tectonics , population , biochemistry , demography , sociology , gene
Aim We explore the evolutionary history of the ogre‐faced spiders ( Deinopis ) from their Early Cretaceous origins to present day. Specifically, we investigate how vicariance and dispersal have shaped distribution patterns of this lineage. Within the Caribbean, we test the role of GAAR landia, a hypothesized land bridge that connected South America to the Greater Antilles during the Eocene–Oligocene transition (~35–33 Ma), in the biogeography of Deinopis . Taxon Araneae: Deinopidae: Deinopis . Location Caribbean islands, with additional global exemplars. Methods Combining standard Sanger sequence data with an Anchored Hybrid Enrichment ( AHE ) phylogenomic dataset, we use Bayesian inference to estimate the phylogenetic relationships of Deinopis . “BioGeo BEARS ” is used to test the GAAR landia hypothesis, and to pinpoint major dispersal events in the biogeographic history of Deinopis . Results The phylogeny supports the nesting of a Caribbean clade within a continental grade. Model comparisons indicate GAAR landia as the best fitting model, and the biogeographic analyses reflect the geologic history within the Caribbean. Ancient and recent overwater dispersal events are also indicated within this lineage. There is also an ancient 113 Ma split into Old and New World clades. Main Conclusions The Deinopis phylogeny corresponds well with geography. This is reflected in the support for the GAAR landia land bridge hypothesis and the phylogenetic relationships within and among Caribbean islands mirroring nuances of Caribbean geologic history. Overwater dispersal also plays an important role in the biogeographic history of this lineage as implicated in the colonization of the volcanic and sedimentary Lesser Antilles and in a “reverse” colonization of North America. The spider family Deinopidae is an ancient lineage with origins dating back to Gondwana. While overwater dispersal has clearly played a role in the biogeography of the genus, the Deinopis phylogeny bears a strong signature of ancient geological events.