Southern Hemisphere Biogeography Inferred by Event-Based Models: Plant versus Animal Patterns
TLDR
The results confirm the hybrid origin of the South American biota: there has been surprisingly little biotic exchange between the northern tropical and the southern temperate regions of South America, especially for animals.Abstract:
The Southern Hemisphere has traditionally been considered as having a fundamentally vicariant history. The common trans-Pacific disjunctions are usually explained by the sequential breakup of the supercontinent Gondwana during the last 165 million years, causing successive division of an ancestral biota. However, recent biogeographic studies, based on molecular estimates and more accurate paleogeographic reconstructions, indicate that dispersal may have been more important than traditionally assumed. We examined the relative roles played by vicariance and dispersal in shaping Southern Hemisphere biotas by analyzing a large data set of 54 animal and 19 plant phylogenies, including marsupials, ratites, and southern beeches (1,393 terminals). Parsimony-based tree fitting in conjunction with permutation tests was used to examine to what extent Southern Hemisphere biogeographic patterns fit the breakup sequence of Gondwana and to identify concordant dispersal patterns. Consistent with other studies, the animal data are congruent with the geological sequence of Gondwana breakup: (Africa(New Zealand(southern South America, Australia))). Trans-Antarctic dispersal (Australia southern South America) is also significantly more frequent than any other dispersal event in animals, which may be explained by the long period of geological contact between Australia and South America via Antarctica. In contrast, the dominant pattern in plants, (southern South America(Australia, New Zealand)), is better explained by dispersal, particularly the prevalence of trans-Tasman dispersal between New Zealand and Australia. Our results also confirm the hybrid origin of the South American biota: there has been surprisingly little biotic exchange between the northern tropical and the southern temperate regions of South America, especially for animals.read more
Citations
More filters
Journal ArticleDOI
The systematics and phylogenetic position of the troglobitic Australian spider genus Troglodiplura (Araneae : Mygalomorphae), with a new classification for Anamidae
TL;DR: It is found that Troglodiplura is a member of the family Anamidae (which was recently separated from the Nemesiidae), and reassess the morphology of the cuticular fragments of specimens from several different caves, and hypothesise that along with T. lowryi there are four new troglobitic species.
Journal ArticleDOI
Microscleres and gemmoscleres as phylogenetic signals in Spongillida: phylogeny and biogeography of the genus Metania Gray, 1867 (Porifera, Metaniidae)
TL;DR: The phylogeny of the genus Metania is inferred and the processes that lead to the current biogeographic distribution are examined using cladistic analysis, supporting monophyly of Metania due to two characters unique to the genus.
Posted ContentDOI
A target enrichment bait set for studying relationships among ostariophysan fishes
Brant C. Faircloth,Brant C. Faircloth,Fernando Alda,Kendra Hoekzema,Michael D. Burns,Michael D. Burns,Claudio Oliveira,James S. Albert,Bruno F. Melo,Luz E. Ochoa,Fábio F. Roxo,Prosanta Chakrabarty,Prosanta Chakrabarty,Brian L. Sidlauskas,Michael E. Alfaro +14 more
TL;DR: The results demonstrate that the bait set designed is useful for addressing phylogenetic questions from the origin of crown ostariophysans to more recent divergence events, and suggest that this bait set may be useful for addressed evolutionary questions in closely related groups of fishes, like Clupeiformes.
Journal ArticleDOI
Molecular, morphological, and biogeographic perspectives on the classification of Acrobolboideae (Acrobolbaceae, Marchantiophyta)
Laura Briscoe,Nyree J. C. Zerega,H. Thorsten Lumbsch,Michael Stech,Ekaphan Kraichak,Matt Von Konrat,John J. Engel,Norman J. Wickett +7 more
TL;DR: Acrobolbus is recognized as a single genus in Acrobolboideae, revealing all three genera are polyphyletic as currently described and several well–supported clades within the phylogeny have a strong biogeographic structure.
Journal ArticleDOI
The significance of recent diversification in the Northern Hemisphere in shaping the modern global flora revealed from the herbaceous tribe of Rubieae (Rubiaceae).
TL;DR: In this article , a total of 204 samples of Rubieae representing all the distribution areas of the tribe were used to infer its phylogenetic and biogeographic histories based on two nrDNA and six cpDNA regions.
References
More filters
Journal ArticleDOI
An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II
TL;DR: A revised and updated classification for the families of the flowering plants is provided in this paper, which includes Austrobaileyales, Canellales, Gunnerales, Crossosomatales and Celastrales.
Journal ArticleDOI
Comparison of phylogenetic trees
D. F. Robinson,L. R. Foulds +1 more
TL;DR: The metric presented in this paper makes possible the comparison of the many nonbinary phylogenetic trees appearing in the literature, and provides an objective procedure for comparing the different methods for constructing phylogenetics trees.
Journal Article
An update of the angiosperm phylogeny group classification for the orders and families of flowering plants : APGII
Journal ArticleDOI
Dispersal-Vicariance Analysis: A New Approach to the Quantification of Historical Biogeography
TL;DR: This work presents a new biogeographic method, dispersal-vicariance analysis, which reconstructs the ancestral distributions in a given phylogeny without any prior assumptions about the form of area relationships, and describes the algorithms that find the optimal reconstruction.