Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-10T13:02:45.767Z Has data issue: false hasContentIssue false
  • English
  • Français

Soil tardigrades from the Antarctic Peninsula with a description of a new species and some remarks on the genus Ramajendas (Eutardigrada: Isohypsibiidae)

Published online by Cambridge University Press:  26 April 2013

Łukasz Kaczmarek ,
Karel Janko ,
Jerzy Smykla  and
Łukasz Michalczyk
Łukasz Kaczmarek
Affiliation:
Department of Animal Taxonomy and Ecology, Faculty of Biology, A. Mickiewicz University, Umultowska 89, 61-614 Poznań, Poland (kaczmar@amu.edu.pl)
Karel Janko
Affiliation:
Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Libechov, and Life Science Research Centre, Department of Biology and Ecology, Faculty of Natural Sciences, University of Ostrava, Chittussiho 10, 710 00 Ostrava, Czech Republic
Jerzy Smykla
Affiliation:
Department of Biodiversity, Institute of Nature Conservation, Polish Academy of Sciences, Mickiewicza 33, 31-120 Kraków, Poland
Łukasz Michalczyk
Affiliation:
Department of Entomology, Institute of Zoology, Jagiellonian University, Gronostajowa 9, 30-387 Kraków, Poland
Get access Rights & Permissions [Opens in a new window]

Abstract

In thirteen (mostly soil) mixed samples, collected from nine localities on the Antarctic continent and some of the neighbouring islands, 788 specimens and 32 eggs of tardigrades were found. In total, five species were identified: Acutuncus antarcticus, Echiniscus jenningsi, Diphascon (D.) victoriae, Hypsibius dujardini and Ramajendas dastychi sp. nov. A. antarcticus was the most abundant (nearly 90% of all specimens) and was the prevailing taxon found in the majority of locations. R. dastychi sp. nov. is the fourth species described in the exclusively Antarctic/sub-Antarctic genus. The new species differs from all other congeners by the presence of four gibbosities on the caudo-dorsal cuticle (configuration II:2–2) and also by some morphometric characters. In this paper we also briefly discuss the taxonomy and zoogeography of the genus Ramajendas.

Type
Research Article
Information
Polar Record , Volume 50 , Issue 2 , April 2014 , pp. 176 - 182
Copyright
Copyright © Cambridge University Press 2013 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Beasley, C.W., Kaczmarek, Ł. and Michalczyk, Ł.. 2008. Doryphoribius mexicanus, a new species of Tardigrada (Eutardigrada: Hypsibiidae) from Mexico (North America). Proceedings of the Biological Society of Washington 121 (1): 34–40.Google Scholar
Convey, P. and McInnes, S.J.. 2005. Exceptional tardigrade-dominated ecosystems in Ellsworth Land, Antarctica. Ecology 86: 519–527.CrossRefGoogle Scholar
Dastych, H., 1980. Niesporczaki (Tardigrada) Tatrzanskiego Parku Narodowego. Kraków: PWN (Monografie Fauny Polski 9): 1–232.Google Scholar
Dastych, H. 1984. The Tardigrada from Antarctica with description of several new species. Acta Zoologica Cracoviensia 27: 377–436.Google Scholar
Dastych, H. 1991. Redescription of Hypsibius antarcticus (Richters, 1904), with some notes on Hypsibius arcticus (Murray, 1907) (Tardigrada). Mitteilungen Hamburgisches Zoologisches Museum und Institut 88: 141–159.Google Scholar
Degma, P., Bertolani, R., and Guidetti, R.. 2009–2012. Actual checklist of Tardigrada species. Version 21: 30–06-2012. URL: http://www.tardigrada.modena.unimo.it/miscellanea/Actual%20checklist%20of%20Tardigrada.pdf, pp. 36.Google Scholar
Fontuora, P. and Pilato, G.. 2007. Diphascon (Diphascon) faialense sp. nov. a new species of Tardigrada (Eutardigrada, Hypsibiidae) from Azores and a key to the species of the D. pingue group. Zootaxa 1589: 47–55.Google Scholar
Jennings, P.G. 1976a. The Tardigrada of Signy Island, South Orkney Islands, with a note on the Rotifera. British Antarctic Survey Bulletin 44: 1–25Google Scholar
Jennings, P.G. 1976b. Tardigrada from the Antarctic Peninsula and Scotia Ridge region. British Antarctic Survey Bulletin 44: 77–95.Google Scholar
Kaczmarek, Ł., Goldyn, B., Prokop, Z.M., and Michalczyk, Ł.. 2011. New records of Tardigrada from Bulgaria with the description of Macrobiotus binieki sp. nov. (Eutardigrada: Macrobiotidae) and a key to the species of the harmsworthi group. Zootaxa 2781: 29–39.CrossRefGoogle Scholar
Marley, N.J., McInnes, S.J. and Sands, C.J.. 2011. Phylum Tardigrada: A re-evaluation of the Parachela. Zootaxa 2819: 51–64.Google Scholar
McInnes, S.J. 1994. Zoogeographic distribution of terrestrial /freshwater tardigrades from current literature. Journal of Natural History 28: 257–352.Google Scholar
Michalczyk, Ł. and 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: 1–26.CrossRefGoogle Scholar
Michalczyk, Ł. and Kaczmarek, Ł.. 2007. Echiniscus ganczareki, a new species of Tardigrada (Heterotardigrada: Echiniscidae: bigranulatus group) from Costa Rica. Zootaxa 1471: 15–25.CrossRefGoogle Scholar
Michalczyk, Ł. and Kaczmarek, Ł.. 2010. Description of Doryphoribius dawkinsi, a new species of Tardigrada (Eutardigrada: Hypsibiidae) from the Costa Rican highlands, with the key to the genus Doryphoribius. Zootaxa 2393: 46–58.CrossRefGoogle Scholar
Michalczyk, Ł. and Kaczmarek, Ł.. in press. The Tardigrada Register: a comprehensive online data repository for tardigrade taxonomy. Journal of Limnology.Google Scholar
Michalczyk, Ł., Wełnicz, W., Frohme, M. and Kaczmarek, Ł.. 2012a. Redescriptions of three Milnesium Doyère, 1840 taxa (Tardigrada: Eutardigrada: Milnesiidae), including the nominal species for the genus. Zootaxa 3154: 1–20.CrossRefGoogle Scholar
Michalczyk, Ł., Wełnicz, W., Frohme, M., and Kaczmarek, Ł.. 2012b. Corrigenda of Zootaxa, 3154: 1–20 Redescriptions of three Milnesium Doyère, 1840 taxa (Tardigrada: Eutardigrada: Milnesiidae), including the nominal species for the genus. Zootaxa 3154: 1–20.Google Scholar
Miller, W.R., Horning, D.S. and Dastych, H.. 1995. Tardigrades of the Australian Antarctic: description of two new species from Macquarie Island, Subantarctica. Entomologische Mitteilungen aus dem Zoologischen Museum Hamburg 11: 231–239.Google Scholar
Miller, W.R., McInnes, S.J. and Bergstrøm, D.M.. 2005. Tardigrades of the Australian Antarctic: Hypsibius heardensis (Eutardigrada: Hypsibiidae: dujardini group) a new species from sub-Antarctic Heard Island. Zootaxa 1022: 57–64.Google Scholar
Ochyra, R. 1998: The moss flora of King George Island, Antarctica. Kraków: Polish Academy of Sciences, W. Szafer Institute of Botany.Google Scholar
Pilato, G. 1981. Analisi di nuovi caratteri nello studio degli Eutardigradi. Animalia 8: 51–57.Google Scholar
Pilato, G. and Binda, M.G.. 1990. Tardigradi dell Antartide. I. Ramajendas, nuovo genere di Eutardigrado. Nuova posizione sistematica di Hypsibius renaudi Ramazzotti, 1972 e descrizione di Ramajendas frigidus n. sp. Animalia 17: 61–71.Google Scholar
Pilato, G. and Binda, M.G.. 1997. Acutuncus, a new genus of Hypsibiidae (Eutardigrada). Entomologische Mitteilungen aus dem Zoologischen Museum Hamburg 12: 159–162.Google Scholar
Pilato, G. and Binda, M.G.. 1999. Three new species of Diphascon of the pingue group (Eutardigrada, Hypsibiidae) from Antarctica. Polar Biology 21: 335–342.Google Scholar
Ramazzotti, G. and Maucci, W.. 1983. Il Phylum Tardigrada. Memorie dell'Istituto Italiano di Idrobiologia 41: 1–1012.Google Scholar
Ramazzotti, G. 1972. Tardigrada delle isole Kerguelen e descrizione della nuova species Hypsibius (I.) renaudi. Memorie dell'Istituto Italiano di Idrobiologia 29: 141–144.Google Scholar