Biogeographic analysis of the ant genus Gnamptogenys Roger in South-East Asia-Australasia (Hymenoptera: Formicidae: Ponerinae)
- 1 August 2003
- journal article
- research article
- Published by Taylor & Francis in Journal of Natural History
- Vol. 37 (15), 1879-1897
- https://doi.org/10.1080/00222930210135631
Abstract
The distribution range of ants of the genus Gnamptogenys is analysed, with special reference to the Old World species, and two closely related genera: Rhytidoponera and Ectatomma. The study is based upon a cladistic biogeographic analysis, recognizing the following areas of endemism: Central America, South America, Philippine Islands, New Guinea, Australia, Solomons/Fiji and South-East Asia. These results are followed by a consensus of different information sources (phylogenetic, natural history, past and present distribution, palaeogeographical and palaeoclimatological) for explaining the present and past distribution of Gnamptogenys and related genera. The area cladogram shows repeated instances of sister relations between Old World and New World taxa at different depths within the tree. Subtree analysis further suggests a common sister relation between Gondwanan landmasses. The distribution of the Gnamptogenys is interpreted as a product of vicariance, starting with the separation of Gondwana, and subsequent dispersal into South-East Asia and Melanesia via rafting on the Australian craton. The desiccation of Australia during the Oligocene was detrimental to the presence of Gnamptogenys but favoured expansion of Rhytidoponera. The study illustrates that a cladistic biogeographic scenario may be supported by a consensus of data from various sources, and also suggests a pre-Tertiary diversification of ant fauna.Keywords
This publication has 20 references indexed in Scilit:
- Giant ants from the Paleogene of Denmark with a discussion of the fossil history and early evolution of ants (Hymenoptera: Formicidae)Zoological Journal of the Linnean Society, 1999
- The role of mantle plumes in continental breakup: case histories from GondwanalandNature, 1995
- A taxonomic and zoogeographical census of the extant ant taxa (Hymenoptera: Formicidae)Journal of Natural History, 1995
- Stratigraphic evidence for an early collision between northwest India and AsiaNature, 1995
- Gondwanaland origin, dispersion, and accretion of East and Southeast Asian continental terranesJournal of South American Earth Sciences, 1994
- Pleistocene vegetation of the humid tropics of northeastern Queensland, AustraliaPalaeogeography, Palaeoclimatology, Palaeoecology, 1994
- A synopsis of climatic and vegetational change in Southeast AsiaClimatic Change, 1991
- The Dynamics of Callitris columellaris/Eucalyptus albens Communities Along the Snowy River and Its Tributaries in South-Eastern AustraliaAustralian Journal of Botany, 1990
- A Revision of the Ant Genus Rhytidoponera (Hymenoptera: Formicidae) in New CaledoniaAustralian Journal of Zoology, 1984
- A Systematic Revision of the Rhytidoponera Impressa Group (Hymenoptera : Formicidae) in Australia and New Guinea.Australian Journal of Zoology, 1980