Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Phylogenetics and biogeography of a spectacular Old World radiation of grass feeding butterflies: the subtribe Mycalesina (Lepidoptera: Nymphalidae: Satyrini)
Stockholm University, Faculty of Science, Department of Zoology.
Show others and affiliations
2010 (English)In: BMC Evolutionary Biology, ISSN 1471-2148, Vol. 10, 172-185 p.Article in journal (Refereed) Published
Abstract [en]

Background: Butterflies of the subtribe Mycalesina (Nymphalidae: Satyrinae) are important model organisms in ecology and evolution. This group has radiated spectacularly in the Old World tropics and presents an exciting opportunity to better understand processes of invertebrate rapid radiations. However, the generic-level taxonomy of the subtribe has been in a constant state of flux, and relationships among genera are unknown. There are six currently recognized genera in the group. Mycalesis, Lohora and Nirvanopsis are found in the Oriental region, the first of which is the most speciose genus among mycalesines, and extends into the Australasian region. Hallelesis and Bicyclus are found in mainland Africa, while Heteropsis is primarily Madagascan, with a few species in Africa. We infer the phylogeny of the group with data from three genes (total of 3139 bp) and use these data to reconstruct events in the biogeographic history of the group.

Results: The results indicate that the group Mycalesina radiated rapidly around the Oligocene-Miocene boundary. Basal relationships are unresolved, but we recover six well-supported clades. Some species of Mycalesis are nested within a primarily Madagascan clade of Heteropsis, while Nirvanopsis is nested within Lohora. The phylogeny suggests that the group had its origin either in Asia or Africa, and diversified through dispersals between the two regions, during the late Oligocene and early Miocene. The current dataset tentatively suggests that the Madagascan fauna comprises two independent radiations. The Australasian radiation shares a common ancestor derived from Asia. We discuss factors that are likely to have played a key role in the diversification of the group.

Conclusions: We propose a significantly revised classification scheme for Mycalesina. We conclude that the group originated and radiated from an ancestor that was found either in Asia or Africa, with dispersals between the two regions and to Australasia. Our phylogeny paves the way for further comparative studies on this group that will help us understand the processes underlying diversification in rapid radiations of invertebrates.

Place, publisher, year, edition, pages
2010. Vol. 10, 172-185 p.
National Category
Biological Systematics
Research subject
Animal Ecology
Identifiers
URN: urn:nbn:se:su:diva-29539DOI: 10.1186/1471-2148-10-172ISI: 000279831400001OAI: oai:DiVA.org:su-29539DiVA: diva2:233970
Funder
Swedish Research Council
Note
authorCount :6Available from: 2009-09-03 Created: 2009-09-03 Last updated: 2010-12-14Bibliographically approved
In thesis
1. The dispersal–vicariance pendulum and butterfly biogeography
Open this publication in new window or tab >>The dispersal–vicariance pendulum and butterfly biogeography
2009 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The relative importance of dispersal and vicariance in speciation is a subject of long standing debate. The earliest historical biogeographers invoked dispersal to explain disjunct distributions. With the advent of phylogenetic systematics and the acceptance of plate-tectonic theory, vicariance gained prominence and dispersalist explanations were increasingly rejected in favour of the former. This led to a new paradigm termed ‘vicariance biogeography’. The quintessence of vicariance biogeography is the consideration of vicariance as the null hypothesis in explanations of disjunct distributions. The notion of vicariance being the predominant force in allopatric speciation started gaining increasing acceptance in the biogeographic community. This also came to be reflected in analytical methods, many of which are biased towards vicariant inferences. However, the recent past has seen this vicariance-dominated view being confronted by a suite of studies demonstrating that dispersal has played a vital role in speciation and is equally important, if not more. In this thesis, I have studied the historical biogeography of nymphalid butterflies (Family Nymphalidae) in the genus Junonia and two subtribes - Coenonymphina and Mycalesina. Junonia is found in all major zoogeographic regions apart from the Palaearctic. Coenonymphina is found in the Holarctic, Neotropical and Australasian regions. Mycalesina is found all over the Old World tropics. The results in the thesis indicate that dispersal has played a crucial role in the diversification of these groups, while there is little evidence for vicariance in any group. I also critique Dispersal-Vicariance analysis, the widely used analytical method in historical biogeography that is based on the principle of parsimony. I use simulated data to highlight various sources of error when using the method, and suggest ways that may help increase the realism of biogeographic inferences.

Place, publisher, year, edition, pages
Stockholm: Department of Zoology, Stockholm University, 2009. 12 p.
Keyword
Junonia, Coenonympha, Coenonymphina, Mycalesina, historical biogeography, vicariance, dispersal, DIVA
National Category
Natural Sciences
Research subject
Animal Ecology
Identifiers
urn:nbn:se:su:diva-29505 (URN)978-91-7155-936-4 (ISBN)
Public defence
2009-10-09, Lilla hörsalen, Naturhistoriska riksmuseet, Frescativägen 40, Stockholm, 10:00 (English)
Opponent
Supervisors
Note
At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 3: Manuscript. Paper 4: In press. Paper 5: In press.Available from: 2009-09-17 Created: 2009-09-02 Last updated: 2009-09-04Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Kodandaramaiah, Ullasa
By organisation
Department of Zoology
In the same journal
BMC Evolutionary Biology
Biological Systematics

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 115 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf