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Occurrence of nematodes, tardigrades and rotifers on ice-free areas in East Antarctica

Sohlenius, B; Boström, S and Jönsson, Ingemar LU (2004) In Pedobiologia 48(4). p.395-408
Abstract
Nematodes, rotifers and tardigrades were collected on three nunataks (mountain peaks penetrating the ice sheet) in Vestfjella, on six nunataks; in Heimefrontfjella and on the Schirmacher Oasis in East Antarctica in the austral summers of 1996/97 and 2001/02. Most samples were taken on the nunatak Basen in Vestfjella where the Swedish station Wasa is located. The microfauna was patchily distributed and the highest densities of animals were found on sites with visible vegetation of mosses, lichens or algae. Thirty-four taxa of nematodes and tardigrades were found. Only seven of these occurred regularly in apparently actively reproducing populations. Other occasional records of nematodes had very few specimens. The highest number of species... (More)
Nematodes, rotifers and tardigrades were collected on three nunataks (mountain peaks penetrating the ice sheet) in Vestfjella, on six nunataks; in Heimefrontfjella and on the Schirmacher Oasis in East Antarctica in the austral summers of 1996/97 and 2001/02. Most samples were taken on the nunatak Basen in Vestfjella where the Swedish station Wasa is located. The microfauna was patchily distributed and the highest densities of animals were found on sites with visible vegetation of mosses, lichens or algae. Thirty-four taxa of nematodes and tardigrades were found. Only seven of these occurred regularly in apparently actively reproducing populations. Other occasional records of nematodes had very few specimens. The highest number of species was found on the nunatak Basen. Rotifers, found in 66% of the samples, were the most frequent animal group. Nematodes occurred in 37% of the samples and tardigrades in 42%. The most frequent nematodes were Plectus and Panagrolaimus, occurring in 26% and 5% of the samples, respectively. Macrobiotus, Hebesuncus and Acutuncus were the most frequent and abundant tardigrades. The pattern of animal distribution can be related to both habitat characteristics and to the geographic position of the nunatak. The communities are little organised and the distribution of the fauna has similarities with an early phase of colonisation. (C) 2004 Elsevier GmbH. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
East Antarctica, microfauna, nunataks, Nematoda, tardigrada, rotatoria
in
Pedobiologia
volume
48
issue
4
pages
395 - 408
publisher
Elsevier
external identifiers
  • wos:000224556400012
  • scopus:4344601880
ISSN
1873-1511
DOI
10.1016/j.pedobi.2004.06.001
language
English
LU publication?
yes
id
423a9a97-65d8-4fd4-9834-89d9f6a291a2 (old id 147440)
date added to LUP
2007-07-03 15:47:33
date last changed
2017-03-26 04:20:41
@article{423a9a97-65d8-4fd4-9834-89d9f6a291a2,
  abstract     = {Nematodes, rotifers and tardigrades were collected on three nunataks (mountain peaks penetrating the ice sheet) in Vestfjella, on six nunataks; in Heimefrontfjella and on the Schirmacher Oasis in East Antarctica in the austral summers of 1996/97 and 2001/02. Most samples were taken on the nunatak Basen in Vestfjella where the Swedish station Wasa is located. The microfauna was patchily distributed and the highest densities of animals were found on sites with visible vegetation of mosses, lichens or algae. Thirty-four taxa of nematodes and tardigrades were found. Only seven of these occurred regularly in apparently actively reproducing populations. Other occasional records of nematodes had very few specimens. The highest number of species was found on the nunatak Basen. Rotifers, found in 66% of the samples, were the most frequent animal group. Nematodes occurred in 37% of the samples and tardigrades in 42%. The most frequent nematodes were Plectus and Panagrolaimus, occurring in 26% and 5% of the samples, respectively. Macrobiotus, Hebesuncus and Acutuncus were the most frequent and abundant tardigrades. The pattern of animal distribution can be related to both habitat characteristics and to the geographic position of the nunatak. The communities are little organised and the distribution of the fauna has similarities with an early phase of colonisation. (C) 2004 Elsevier GmbH. All rights reserved.},
  author       = {Sohlenius, B and Boström, S and Jönsson, Ingemar},
  issn         = {1873-1511},
  keyword      = {East Antarctica,microfauna,nunataks,Nematoda,tardigrada,rotatoria},
  language     = {eng},
  number       = {4},
  pages        = {395--408},
  publisher    = {Elsevier},
  series       = {Pedobiologia},
  title        = {Occurrence of nematodes, tardigrades and rotifers on ice-free areas in East Antarctica},
  url          = {http://dx.doi.org/10.1016/j.pedobi.2004.06.001},
  volume       = {48},
  year         = {2004},
}