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
Historical biogeography of a neglected family of armoured harvestmen (Opiliones : Laniatores : Icaleptidae) with the first record and a new genus for tropical Mesoamerica
TL;DR: The results revealed that E. pilosus is a derived lineage within the family Icaleptidae, thus it is transferred from Zalmoxidae, and the new name Trypophobicica gen. nov. is proposed to accommodate it, with the new combination Trypophobica pilosa comb.
Journal ArticleDOI
Phylogenomics resolves timing and patterns in the evolution of Australasian Cerambycinae (Coleoptera: Cerambycidae), and reveals new insights into the subfamily-level classification and historical biogeography of longhorn beetles.
Meng Jin,Seunggwan Shin,Lauren G Ashman,Richard A. B. Leschen,Andreas Zwick,Roger de Keyzer,Duane D. McKenna,Adam Slipinski +7 more
TL;DR: This paper reconstructed the phylogenetic relationships of Cerambycinae at the generic level using anchored hybrid enrichment data from hundreds of nuclear genes, with a primary focus on the extraordinarily diverse faunas of Australia and New Zealand.
Caledonian biota: a puzzle with 24 pieces
TL;DR: In this article, the distributions of many New Caledonian taxa were reviewed in order to ascertain the main biogeographical connections with other areas, including Gondwana, Tethys and the central Pacific.
Journal ArticleDOI
Phylogeny and evolution of Cupressaceae: updates on intergeneric relationships and new insights on ancient intergeneric hybridization.
TL;DR: This paper reconstructed a robust and well-resolved phylogeny of Cupressaceae represented by all 32 genera, using 1944 genes (Orthogroups) generated from transcriptome sequencing.
Journal ArticleDOI
The Australasian genus Schizacme (Loganiaceae): new combinations and new species in the New Zealand flora
TL;DR: By using nucleotide sequence data from the nuclear ribosomal ETS and the chloroplast intron petD, it is confirmed that New Zealand Mitrasacme and Australian Schizacme form a monophyletic group.
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.