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Phylogenetic relationships, biogeography and diversification of Coenonymphina butterflies (Nymphalidae: Satyrinae): intercontinental dispersal of a southern Gondwanan group?

Kodandaramaiah, Ullasa; Braby, Michael; Grund, Roger; Muller, Chris J.; Wahlberg, Niklas

Description

The origins, evolutionary history and diversification of the Australian butterfly fauna are poorly known and uncertain. Two competing hypotheses have been proposed to explain the occurrence of butterflies on this isolated continental landmass. The common view is that all Australian butterflies entered the continent relatively recently from the northern hemisphere via Southeast Asia and/or mainland New Guinea (i.e. northern dispersal origin hypothesis). The alternative view is that part or all...[Show more]

dc.contributor.authorKodandaramaiah, Ullasa
dc.contributor.authorBraby, Michael
dc.contributor.authorGrund, Roger
dc.contributor.authorMuller, Chris J.
dc.contributor.authorWahlberg, Niklas
dc.date.accessioned2019-07-01T05:07:42Z
dc.identifier.issn0307-6970
dc.identifier.urihttp://hdl.handle.net/1885/164299
dc.description.abstractThe origins, evolutionary history and diversification of the Australian butterfly fauna are poorly known and uncertain. Two competing hypotheses have been proposed to explain the occurrence of butterflies on this isolated continental landmass. The common view is that all Australian butterflies entered the continent relatively recently from the northern hemisphere via Southeast Asia and/or mainland New Guinea (i.e. northern dispersal origin hypothesis). The alternative view is that part or all of the Australian butterfly fauna ultimately evolved in remnant or Southern Gondwana when Australia was connected to South America through Antarctica (i.e. Southern Gondwanan origin hypothesis). However, robust phylogenies with strong support for monophyly are lacking for the majority of Australian endemic butterfly lineages, thereby precluding determination of their systematic relationships and hence their geographic origins. Here, we use molecular data to reconstruct phylogenetic relationships of the globally distributed butterfly subtribe Coenonymphina (Satyrinae: Satyrini). This group represents a major component of the butterfly fauna of the wider Australasian region, with 19 genera and 71 species endemic to the region. Dating estimates extrapolated from secondary calibration sources indicate that the subtribe arose c. 48 Ma (95% credibility interval, 52–42 Ma), and the crown group first diverged in the Eocene (c. 44 Ma, 95% credibility interval 51–37 Ma). Rapid speciation events subsequently followed around the Eocence–Oligocene boundary, resulting in a near‐hard polytomy comprising short basal branches with nodes that are difficult to resolve. Based on strongly supported phylogenetic relationships and estimates of divergence times, we conclude that the group probably had its origin in the fragment of Southern Gondwana consisting of Australia, Antarctica and South America. However, we are unable to rule out the northern dispersal scenario, particularly as Coenonymphina are closely related to a set of predominantly Asian lineages. Dispersal and extinction events following the final break‐up of Gondwana have played a pivotal role in shaping the extant distributions of the group.
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherWiley
dc.rights© 2018 The Royal Entomological Society
dc.sourceSystematic Entomology
dc.titlePhylogenetic relationships, biogeography and diversification of Coenonymphina butterflies (Nymphalidae: Satyrinae): intercontinental dispersal of a southern Gondwanan group?
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume43
dc.date.issued2018
local.identifier.absfor060302 - Biogeography and Phylogeography
local.identifier.ariespublicationu9511635xPUB1788
local.publisher.urlhttps://www.wiley.com/en-gb
local.type.statusPublished Version
local.contributor.affiliationKodandaramaiah, Ullasa, Stockholm University
local.contributor.affiliationBraby, Michael, College of Science, ANU
local.contributor.affiliationGrund, Roger, No Formal Affiliation
local.contributor.affiliationMuller, Chris J., Australian Museum
local.contributor.affiliationWahlberg, Niklas, Lund University
local.description.embargo2037-12-31
local.bibliographicCitation.startpage798
local.bibliographicCitation.lastpage809
local.identifier.doi10.1111/syen.12303
local.identifier.absseo960899 - Flora, Fauna and Biodiversity of environments not elsewhere classified
dc.date.updated2019-03-24T07:21:07Z
local.identifier.scopusID2-s2.0-85052714186
CollectionsANU Research Publications

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