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Polar Biology

, 33:59 | Cite as

Echiniscus corrugicaudatus (Heterotardigrada; Echiniscidae) a new species from Ellsworth Land, Antarctica

  • Sandra J. McInnes
Original Paper

Abstract

Echiniscus corrugicaudatus sp. nov., (Heterotardigrada; Echiniscidae) was found in the limited vegetation from the inland nunataks of Ellsworth Land, West Antarctica. The tardigrade fauna of this a rarely explored region shows limited overlap with the fauna from the maritime or coastal continental Antarctic. This species is placed within the Echiniscusarctomys-group” based on the characteristic of, “a lack of body appendages other than cirrus A”. It has less well-defined edges to the dorsal plates than other species within the group and distinct ridges on the caudal plate. Males were found in the population indicating gonochoristic reproduction, and a large number of juveniles suggesting an over-wintering strategy of eggs or a biennial population over-wintering as adults/sub-adults and eggs.

Keywords

Tardigrada Echiniscus arctomys-group Ronne sector Antarctic 

Notes

Acknowledgements

The author is grateful to Dr Pete Convey for collecting the samples, who in turn relied on the skilled and enthusiastic support of staff at the British Antarctic Survey’s (BAS) Rothera Research Station, the BAS Logistics Section and Air Unit staff, and field general assistant Tim Blakemore. Morag Hunter, Steve Hinde and Anke Wendt are also thanked for their efforts in providing extra collections from the survey area. I am grateful to Dr Katrin Linse (BAS) for comments and advice on the manuscript and Nigel Marley (University of Plymouth) and the team at the Plymouth Electron Microscopy Centre, University of Plymouth for their assistance and the use of the SEM facilities, and appreciate Professor James Diggle’s (Queen’s College, Cambridge) assistance with the Latin name of the new species. The referees: Sandra Claxton, Nigel Marley and A.N. Other, are thanked for their helpful comments and suggestion for improving the manuscript.

References

  1. Adams BJ, Bardgett RD, Ayres E, Wall DH, Aislabie J, Bamforth S, Bargagli R et al (2006) Diversity and distribution of Victoria Land biota. Soil Biol Biochem 38:3003–3018CrossRefGoogle Scholar
  2. Beasley CW (1999) A new species of Echiniscus (Tardigrada, Echiniscidae) from northern Yunnan Province, China. Zool Anz 238:135–138Google Scholar
  3. Bertolani R, Rebecchi L (1993) A revision of the Macrobiotus hufelandi group (Tardigrada, Macrobiotidae), with some observations on the taxonomic characters of eutardigrades. Zool Scr 22:127–152CrossRefGoogle Scholar
  4. Binda MG, Pilato G (1994) Macrobiotus mottai, nuova specie de eutardigrado dell’Antartide. Animalia 21:53–56Google Scholar
  5. Binda MG, Pilato G (2000) Diphascon (Adropion) tricuspidatum, a new species of eutardigrade from Antarctica. Polar Biol 23:75–76CrossRefGoogle Scholar
  6. Claxton SK (1996) Sexual dimorphism in Australian Echiniscus (Tardigrada, Echiniscidae) with descriptions of three new species. Zool J Linn Soc Lond 116:13–33CrossRefGoogle Scholar
  7. Convey P (2001) Antarctic ecosystems. In: Levin SA (ed) Encyclopedia of biodiversity, vol 1. Academic Press, San Diego, pp 171–184Google Scholar
  8. Convey P, McInnes SJ (2005) Exceptional, tardigrade dominated ecosystems in Ellsworth Land, Antarctica. Ecology 86:519–527CrossRefGoogle Scholar
  9. Convey P, Gibson JEA, Hillenbrand C-D, Hodgson DA, Pugh PJA, Smellie JL, Stevens MI (2008) Antarctic terrestrial life—challenging the history of the frozen continent? Biol Rev 83:103–117CrossRefPubMedGoogle Scholar
  10. da Cunha AX, do Nascimento Ribeiro F (1964) Tardigrados de Angola. Garcia Orta (Lisbon) 12:397–406Google Scholar
  11. Dastych H (1984) The Tardigrada from Antarctic with descriptions of several new species. Acta Zool Cracov 27:77–436Google Scholar
  12. Dastych H (1987) Two new species of Tardigrada from the Canadian Subarctic with some notes on sexual dimorphism in the family Echiniscidae. Entomol Mitt Zool Mus Hamb 8:319–334Google Scholar
  13. Dastych H (1997) A new species of the genus Echiniscus (Tardigrada) from New Zealand. Entomol Mitt Zool Mus Hamb 12:209–215Google Scholar
  14. Dastych H, Drummond AE (1996) Notes on limnic water-bears (Tradigrada) from the Robertskollen nunataks, Dronning Maud Land, Antarctica. Entomol Mitt Zool Mus Hamb 12:111–117Google Scholar
  15. Dastych H, Harris JM (1994) A new species of the genus Hebesuncus from the Antarctic nunataks, Dronning Maud Land (Tardigrada). Entomol Mitt Zool Mus Hamb 11:139–145Google Scholar
  16. Dastych H, Kristensen RM (1995) Echiniscus ehrenbergi sp.n., a new water bear from the Himalayas (Tardigrada). Entomol Mitt Zool Mus Hamb 11:221–230Google Scholar
  17. Ehrenberg CG (1853) Diagnosis novarum forumarum. Monats Königl Preuss Akad Wiss Berlin 1853:526–533Google Scholar
  18. Ehrenberg CG (1854) Mikrogeologie. Das Erden und Felsen schaffende Wirken des unsichtbar kleinen selbständigen Lebens auf der Erde. Leopold Voss, Leipzig, p 374Google Scholar
  19. Ellis-Evans JC, Walton DWH (1990) The process of colonisation in Antarctic terrestrial and freshwater ecosystems. Proc NIPR Symp Polar Biol 3:151–163Google Scholar
  20. Gray P (1954) The microtomist’s formulary and guide. Blakiston Co. Inc., New YorkGoogle Scholar
  21. Greenslade P (1995) Collembola from the Scotia Arc and Antarctic Peninsula including descriptions of two new species and notes on biogeography. Pol Pismo Entomol 64:305–319Google Scholar
  22. Iharos G (1973) Angaben zur geographischen Verbreitung der Tardigraden. Opusc Zool Bp 12:73–86Google Scholar
  23. Jennings PG (1976) Tardigrada from the Antarctic Peninsula and Scotia Ridge region. BAS Bull 44:77–95Google Scholar
  24. Kaczmarek Ł, Michalczyk Ł (2002) Echiniscus barbarae, a new species of tardigrade from Cuba Island (Tardigrada: Heterotardigrada, Echiniscidae, ‘arctomys group’). Zootaxa 53:1–4Google Scholar
  25. Kristensen RM (1987) Generic revision of the Echiniscidae (Heterotardigrada), with a discussion of the origin of the family. In: Bertolani R (ed) Biology of tardigrades. Selected symposia and monographs U.Z.I, vol 1. Mucchi, Modena, pp 261–335Google Scholar
  26. Marshall DJ, Coetzee L (2000) Historical biogeography and ecology of a continental Antarctic mite genus, Maudheimia (Acari, Oribatida): evidence for a Gondwanan origin and Pliocene-Pleistocene speciation. Zool J Linn Soc Lond 129:111–128CrossRefGoogle Scholar
  27. Marshall DJ, Pugh PJA (1996) Origin of the inland Acari of continental Antarctica, with particular reference to Dronning Maud Land. Zool J Linn Soc Lond 118:101–118CrossRefGoogle Scholar
  28. McInnes SJ (1994) Zoogeographic distribution of terrestrial/freshwater tardigrades from current literature. J Nat Hist 28:257–352CrossRefGoogle Scholar
  29. McInnes SJ (1995) Tardigrades from Signy Island, South Orkney Islands, with particular reference to freshwater species. J Nat Hist 29:1419–1445CrossRefGoogle Scholar
  30. McInnes SJ (1996) Taxonomy and ecology of tardigrades from Antarctic lakes. M.Phil, Open UniversityGoogle Scholar
  31. McInnes SJ, Pugh PJA (1998) Biogeography of limno-terrestrial Tardigrada, with particular reference to the Antarctic fauna. J Biogeogr 25:31–36CrossRefGoogle Scholar
  32. McInnes SJ, Pugh PJA (1999) Zonation in Antarctic lake-dwelling benthic meiofauna, with emphasis on the Tardigrada. Zool Anz 238:283–288Google Scholar
  33. McInnes SJ, Pugh PJA (2007) An attempt to revisit the global biogeography of limno-terrestrial. In: Pilato G, Rebecchi L (eds) Proceedings of the 10th international symposium on Tardigrada, vol 66, Catania, pp 90–96Google Scholar
  34. McInnes SJ, Chown SL, Dartnall HJG, Pugh PJA (2001) Milnesium tardigradum a monitor of high altitude micro-invertebrates on sub-Antarctic Marion Island. Zool Anz 240:461–466CrossRefGoogle Scholar
  35. Michalczyk Ł, Kaczmarek Ł (2006) Revision of the Echiniscus bigranulatus group with a description of a new species Echiniscus madonnae (Tardigrada: Heterotardigrada: Echiniscidae) from South America. Zootaxa 1154:1–26Google Scholar
  36. Michalczyk Ł, Kaczmarek Ł (2007) Echiniscus ganczareki, a new species of Tardigrada (Heterotardigrada: Echiniscidae, bigranulatus group) from Costa Rica. Zootaxa 1471:15–25Google Scholar
  37. Mihelčič F (1967) Ein Beitrag zur Kenntnis der Tardigraden Argentiniens. Verh Zool Bot Ges Wien 107:43–56Google Scholar
  38. Mihelčič F (1971–1972) Ein weiterer Beitrag zur Kenntnis der Tardigraden Argentiniens. Verh Zool Bot Ges Wien 110/111:47–52Google Scholar
  39. Miller WR, Heatwole H (1995) Tardigrades of the Australian Antarctic Territories: the Mawson Coast, East Antarctic. Invertebr Biol 114:27–38CrossRefGoogle Scholar
  40. Miller WR, Heatwole H (1996) Tardigrades of the Australian Antarctic Territories: the Northern Prince Charles Mountains, East Antarctica. Proc Linn Soc NSW 116:245–260Google Scholar
  41. Miller WR, Claxton SK, Heatwole H (1999) Tardigrades of the Australian Antarctic Territories: males in the genus Echiniscus (Tardigrada: Heterotardigrada). Zool Anz 238:303–309Google Scholar
  42. Miller WR, Miller JD, Heatwole HF (1996) Tardigrades of the Australian Antarctic Territories: the Windmill Islands, East Antarctica. Zool J Linn Soc Lond 116:175–184CrossRefGoogle Scholar
  43. Miller WR, Heatwole H, Pidgeon RWJ, Gardiner GR (1994) Tardigrades of the Australian Antarctic Territories: the Larsemann Hills, East Antarctica. Trans Am Microsc Soc 113:142–160CrossRefGoogle Scholar
  44. Mitchell CR, Romano FA (2007) Sexual dimorphism, population dynamics and some aspects of life history of Echiniscus mauccii (Tardigrada; Heterotardigrada). In: Pilato G, Rebecchi L (eds) Proceedings of the 10th international symposium on Tardigrada, vol 66, Catania, pp 126–131Google Scholar
  45. Murray J (1906) Scottish National Antarctic Expedition: Tardigrada of the South Orkneys. Trans R Soc Edinb 45:323–338Google Scholar
  46. Nelson DR, McInnes SJ (2002) Tardigrades. In: Rundle SD, Robertson AL, Schmid-Araya JM (eds) Freshwater meiofauna: biology and ecology. Buckhuys, Leiden, pp 177–215Google Scholar
  47. Peat HJ (1998) The Antarctic plant database: a specimen and literature based information system. Taxon 47:85–93CrossRefGoogle Scholar
  48. Peat HJ, Clarke A, Convey P (2007) Diversity and biogeography of the Antarctic flora. J Biogeogr 34:132–146CrossRefGoogle Scholar
  49. Pilato G (1979) Correlations between cryptobiosis and other biological characteristics in some soil animals. Boll Zool 46:19–332Google Scholar
  50. Pilato G (1981) Analisi di nuovi caratteri nello studio degli Eutardigradi. Animalia 8:51–57Google Scholar
  51. Pilato G, Binda MG (1999) Three new species of Diphascon of the pingue group (Eutardigrada, Hypsibiidae) from Antarctica. Polar Biol 21:335–342CrossRefGoogle Scholar
  52. Pilato G, Binda MG (2001) Biogeography and limno-terrestrial tardigrades: are they truly incompatible binomials? Zool Anz 240:511–516CrossRefGoogle Scholar
  53. Pugh PJA (1993) A synonymic catalogue of the Acari from Antarctica, the sub-Antarctic islands and the Southern Ocean. J Nat Hist 27:323–421CrossRefGoogle Scholar
  54. Pugh PJA, Convey P (2008) Surviving out in the cold: Antarctic endemic invertebrates and their refugia. J Biogeogr 35:2176–2186CrossRefGoogle Scholar
  55. Ramazzotti G, Maucci W (1983) Il Phylum Tardigrada. III edizione riveduta e aggiornata. Mem Ist Ital Idrobiol 41:1–1011Google Scholar
  56. Richters F (1903) Arktische Tardigraden. Fauna Arct 3:495–508Google Scholar
  57. Richters F (1904) Vorläufiger Bericht über die antarktische Moosfauna. Verh Dtsch Zool Ges-Tübingen 4:236–239Google Scholar
  58. Richters F (1908) Moosbewohner. Wissenschaftliche Ergebnisse der Schwedischen Südpolar Expedition (1901–1903). Bd V Liefg 2:1–16Google Scholar
  59. Sands CJ, Convey P, Linse K, McInnes SJ (2008) Assessing meiofaunal variation among individuals: an example using Tardigrada. BMC Ecol 8:7CrossRefPubMedGoogle Scholar
  60. Sohlenius B, Boström S, Hirschfelder A (1995) Nematodes, rotifers and tardigrades from nunataks in Dronning Maud Land, East Antarctica. Polar Biol 15:51–56CrossRefGoogle Scholar
  61. Sohlenius B, Boström S, Hirschfelder A (1996) Distribution patterns of microfauna (nematodes, rotifers and tardigrades) on nunataks in Dronning Maud Land, East Antarctica. Polar Biol 16:191–200CrossRefGoogle Scholar
  62. Usher MB, Dastych H (1987) Tardigrada from the Maritime Antarctic. BAS Bull 77:163–166Google Scholar
  63. Wang L, Li X (2005) Echiniscus taibaiensis sp. nov. and a new record of Echiniscus bisetosus (Tardigrada, Echiniscidae) from China. Zootaxa 1092:39–45Google Scholar

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.British Antarctic SurveyNatural Environmental Research CouncilCambridgeUK

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