Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Distribution and population structure of two bacterial-feeding nematode genera in ice-free areas in East Antarctica

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Nematology
For more content, see Nematologica.

Very dense populations of nematodes of the genera Plectus and Panagrolaimus were found in moss cushions and in ornithogenic soils in a number of localities on mountain outcrops (nunataks) penetrating the ice sheet and in a coastal oasis in East Antarctica. These high abundances permitted analysis of the structure of populations from various sites. Patterns of distribution and size-class composition in nematode populations from the Basen nunatak, and from scattered samples taken in a larger area including several nunataks and one coastal oasis in Dronning Maud Land, were investigated. It is suggested that the composition of developmental stages and structure of the nematode populations are influenced by environmental conditions such as food supply, temperature and maybe predation or competition from coexisting populations of tardigrades, protozoans and rotifers. The results indicated that the population dynamics were not synchronised among the sites. In several populations the animals appeared well fed with a high frequency of gravid females. In the more extreme localities, in particular, the proportion of adults was very high, and in these sites the recruitment to the populations appeared to be rather low as indicated by the low proportion of juveniles. The structure of the nematode populations seemed little influenced by various combinations of co-occurring tardigrades or rotifers. There were some differences in population structure between nematode populations from different nunataks which could possibly be caused by genetic variability due to long periods of isolation.

Affiliations: 1: Department of Invertebrate Zoology, Swedish Museum of Natural History, Box 50007, 104 05 Stockholm, Sweden

Loading

Full text loading...

/content/journals/10.1163/156854109x429538
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/156854109x429538
Loading

Article metrics loading...

/content/journals/10.1163/156854109x429538
2009-03-01
2016-12-09

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    Nematology — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation