Browsing by Author "Barrett, John E."

Now showing items 1-5 of 5

  • Biotic interactions are an unexpected yet critical control on the complexity of an abiotically driven polar ecosystem.

    Lee, Charles Kai-Wu; Laughlin, Daniel C.; Bottos, Eric M.; Caruso, Tancredi; Joy, Kurt; Barrett, John E.; Brabyn, Lars; Nielsen, Uffe N.; Adams, Byron J.; Wall, Diana H.; Hopkins, David W.; Pointing, Stephen B.; McDonald, Ian R.; Cowan, Don A.; Banks, Jonathan C.; Stichbury, Glen; Jones, Irfon; Zawar-Reza, Peyman; Katurji, Marwan; Hogg, Ian D.; Sparrow, Ashley D.; Storey, Bryan C.; Green, T.G. Allan; Cary, S. Craig (2019)
    Abiotic and biotic factors control ecosystem biodiversity, but their relative contributions remain unclear. The ultraoligotrophic ecosystem of the Antarctic Dry Valleys, a simple yet highly heterogeneous ecosystem, is a ...
  • Co- variation in soil biodiversity and biogeochemistry in northern and southern Victoria Land, Antarctica

    Barrett, John E.; Virginia, R. A.; Wall, Diana H.; Cary, S. Craig; Adams, Byron J.; Hacker, A. L.; Aislabie, Jackie M. (Cambridge University Press, 2006)
    Data from six sites in Victoria Land (72–77°S) investigating co-variation in soil communities (microbial and invertebrate) with biogeochemical properties showthe influence of soil properties on habitat suitability varied ...
  • Influence of soil properties on archaeal diversity and distribution in the McMurdo Dry Valleys, Antarctica

    Richter, Ingrid; Herbold, Craig W.; Lee, Charles Kai-Wu; McDonald, Ian R.; Barrett, John E.; Cary, S. Craig (John Wiley & Sons Ltd, 2014)
    Archaea are the least understood members of the microbial community in Antarctic mineral soils. Although their occurrence in Antarctic coastal soils has been previously documented, little is known about their distribution ...
  • Nematodes in a polar desert reveal the relative role of biotic interactions in the coexistence of soil animals.

    Caruso, Tancredi; Hogg, Ian D.; Nielsen, Uffe N.; Bottos, Eric M.; Lee, Charles Kai-Wu; Hopkins, David W.; Cary, S. Craig; Barrett, John E.; Green, T.G. Allan; Storey, Bryan C.; Wall, Diana H.; Adams, Byron J. (2019)
    Abiotic factors are major determinants of soil animal distributions and their dominant role is pronounced in extreme ecosystems, with biotic interactions seemingly playing a minor role. We modelled co-occurrence and ...
  • Resolving environmental drivers of microbial community structure in Antarctic soils

    Smith, Julie L.; Barrett, John E.; Tusnady, Gabor; Rejto, Lidia; Cary, S. Craig (Antarctic Science Ltd, 2009)
    Antarctic soils are extremely cold, dry, and oligotrophic, yet harbour surprisingly high bacterial diversity. The severity of environmental conditions has constrained the development of multi-trophic communities, and species ...