Eur. J. Entomol. 112 (2): 334-343, 2015 | DOI: 10.14411/eje.2015.032
Biology, affinity and description of an unusual aquatic new genus and species of Isotomidae (Collembola) from high altitude lakes in Tasmania
- 1 Department of Environmental Management, School of Science, Information Technology and Engineering, Federation University, Ballarat, Victoria 3353, Australia; e-mail: email@example.com
- 2 Department of Botany and Zoology, Australian National University, GPO Box Australian Capital Territory, 0200, Australia
- 3 South Australian Museum, North Terrace, Adelaide, South Australia 5000, Australia
- 4 Moscow State Pedagogical University, Department of Zoology and Ecology, Moscow 129164, Kibalchicha 6 B5, Russia; e-mail: firstname.lastname@example.org
A new species of Isotomidae (Collembola) was collected from submerged stones on the edge of nine lakes on Tasmania's Central Highland Plateau. Because it did not comply fully with the characters of any existing genus, a new genus, Chionobora gen. n. is erected for it here. An Antarctic species, Desoria klovstadi (Carpenter), has characters which conform with the new genus so is formally transferred to the new genus here. The Antarctic Continent and Tasmania were last in proximity 60 million years b.p. so it is suggested both species are relicts persisting in probable ice-free refugia during glacial cycles. Gut contents of specimens of the new species exclusively contained diatoms in various stages of digestion and the species appears to graze on aquatic macrophytes, a feeding habit not recorded before for Collembola. We note the high numbers of endemic invertebrate taxa of restricted distributions in cold habitats of southern regions compared to warmer regions and stress their conservation values and threats to their populations.
Keywords: Collembola, Isotomidae, Chionobora amila, new genus, new species, Antarctica, diatoms, refugia, adversity selection
Received: August 30, 2014; Accepted: December 4, 2014; Prepublished online: February 3, 2015; Published: April 2, 2015
- Anon. 2002: Western Lakes Fishery Management Plan. Inland Fisheries Service, Tasmania, 44 pp
- Cadwallader P.L. 1996: Overview of the Impacts of Introduced Salmonids on Australian Naive Fauna. Australian Nature Conservation Agency, Canberra, 68 pp
- Campbell I.C. 1988: Ephemeroptera. In Houston W.W.K. (ed.): Zoological Catalogue of Australia. Ephemeroptera, Megaloptera, Odonata, Plecoptera, Trichoptera. Vol. 6. Australian Government Publishing Service, Canberra, pp. 1-22, 284-286
- Carpenter G. 1902: Aptera: Collembola. Chapter 9 Insecta. In: The Report on the Collections of Natural History Made in the Antarctic Regions during the Voyage of the Southern Cross. British Museum (Natural History), London, pp. 221-223
- Colhoun E.A. 2002: Periglacial landforms and deposits of Tasmania. - Sth Afr. J. Sci. 98: 55-45
- Davies P.E., Cook L.S.J., Elvey W., Sloane T., Warfe D., Lewis G. et al. 2002: Montreal Indicator: Testing and Refinement of AUISRIVAS for the Detection and Assessment and Interpretation of Changes in Stream Biodiversity Associated with Forestry Operations. Report to Forest and Wood Products Corporation, Hobart, Tasmania, 126 pp
- Deharveng L. & Bedos A. 2004: Insecta: Collembola. In Yule C.M. & Yong H.S (ed.): Freshwater Invertebrates of the Malaysian Region. Academy of Sciences Malaysia and Monash University, Kuala Lumpur, pp. 384-393
- Elvey W.F. 2002: The Impacts of Brown Trout (Salmo trutta) in Streams: The Implications of Prey Identity and Habitat. Unpublished PhD thesis, University of Tasmania, Hobart, 140 pp
- Fraser C.I., Terauds A., Smellie J., Convey P. & Chown S.L. 2014: Geothermal activity helps life survive glacial cycles. -Proc. Natl. Acad. Sci. U.S.A. 111: 5634-5639 Go to original source...
- Fulton W. 1998: The Freshwater Fish Fauna of Tasmania's Central Plateau. Inland Fisheries Commission, University of Tasmania, Hobart, 80 pp
- Greenslade P. 1985: Conservation Priorities in Tasmania's Non-marine Invertebrates. Unpublished report to Tasmanian Parks and Wildlife Service, Hobart, 169 pp
- Greenslade P. & New T.R. 1991: Australia: conservation of a continental insect fauna. In Collins N.M. & Thomas J.A. (eds): The Conservation of Insects and their Habitats. Proceedings of the Royal Entomological Society's 15th Symposium 14-15th September 1989. Academic Press, London, pp. 33-70
- Greenslade P. & Potapov M. 2008: A new genus and species of Isotominae (Collembola: Isotomidae) from cushion plants on subantarctic Macquarie Island. - Kanunnah 2: 87-97
- Kiernan K. 1990: The extent of lae Cenozoic glaciation in the central highlands of Tasmania. - Arctic Alpine Res. 22: 341-354 Go to original source...
- Kirkpatrick J.B. & Fowler M. 1998: Locating likely glacial refugia in Tasmania using palynolgical and ecological information to test alternative climatic modes. - Biol. Conserv. 85: 171-182 Go to original source...
- Knott B. 1975: Systematic Studies on the Phreatoicoidea (Order Isopoda) with a Discussion on the Phylogeny and Zoogeography of other Freshwater Malacostracan Crustaceans from Australia and Tasmania. Unpublished PhD Thesis, University of Tasmania, Hobart
- Oammer O., Harper D.A.T. & Ryan P.D. 2001: PAST: Paleontological statistics software package for education and data analysis. - Palaeontol. Electron. 4(1): 9 pp
- Pinder A.M. & Brinkhurst R.O. 2000: A review of the Tubificidae (Annelida: Oligochaeta) from Australian inland waters. - Mem. Mus. Victoria 58: 39-75
- Ponder W.F., Clark G.A., Miller A.C. & Toluzzi A. 1993: On a major radiation of freshwater snails in Tasmania and eastern Victoria: a preliminary overview of the Beddomeia group (Mollusca: Gastropoda: Hydrobiidae). - Invert. Taxon. 7: 501-750 Go to original source...
- Royer J.-Y. & Rollet N. 1997: Plate tectonic setting of the Tasmanian region. - Austral. J. Earth Sci. 44: 543-560 Go to original source...
- Salmon J.T. 1941: The collembolan fauna of New Zealand, including a discussion of its distribution and affinities. - Trans. R. Soc. N. Z. 70: 282-431
- Shiel R.J., Koste W. & Tan L.W. 1989: Tasmania revisited: rotifer communities and habitat heterogeneity. - Hydrobiologia 186-7: 239-249 Go to original source...
- Smith B.J. & Kershaw R.C. 1981: Tasmanian land and fresh water molluscs. Fauna of Tasmania Handbook. Vol. 5. University of Tasmania, Hobart, 148 pp
- Stach J. 1947: The Apterygotan Fauna of Poland in Relation to the World Fauna of this Group of Insects. Polish Academy of Sciences, Krakow, 488 pp
- Stevens M.I., Fjellberg A., Greenslade P., Hogg I.D. & Sunnucks P. 2006: Redescription of the Antarctic springtail, Isotoma klovstadi suggests greater distinctiveness of the Antarctic fauna. - Polar Biol. 29: 820-830 Go to original source...
- Stevens M.I., Frati F., Mcgaughran A., Spinsanti G. & Hogg I.D. 2007: Phylogeographic structure suggests multiple glacial refugia in northern Victoria Land for the endemic Antarctic springtail Desoria klovstadi (Collembola, Isotomidae). - Zool. Scripta 36: 201-212 Go to original source...
- Storey K. & Comfort M. 2007: A Progress Report on the Development of Rehabilitation Priorities for Brad Scale Erosion within the World Heritage Area on the Central Plateau of Tasmania. Nature Conservation Report 07/01, DPIW, Hobart