Browsing by Author "Pointing, Stephen B."

Now showing items 1-5 of 14

  • Abiotic factors influence microbial diversity in permanently cold soil horizons of a maritime-associated Antarctic Dry Valley

    Stomeo, Francesca; Makhalanyane, Thulani P.; Valverde, Angel; Pointing, Stephen B.; Stevens, Mark I.; Cary, S. Craig; Tuffin, Marla I.; Cowan, Don A. (Blackwell Publishing Ltd., 2012)
    The McMurdo Dry Valleys collectively comprise the most extensive ice-free region in Antarctica and are considered one of the coldest arid environments on Earth. In low-altitude maritime-associated valleys, mineral soil ...
  • Airborne bacterial populations above desert soils of the McMurdo Dry Valleys, Antarctica

    Bottos, Eric M.; Woo, Anthony C.; Zawar-Reza, Peyman; Pointing, Stephen B.; Cary, S. Craig (Springer, 2014-01)
    Bacteria are assumed to disperse widely via aerosolized transport due to their small size and resilience. The question of microbial endemicity in isolated populations is directly related to the level of airborne exogenous ...
  • Airborne microbial transport limitation to isolated Antarctic soil habitats

    Archer, Stephen David James; Lee, Kevin C.; Caruso, Tancredi; Maki, Teruya; Lee, Charles Kai-Wu; Carys, S. Craig; Cowan, Don A.; Maestre, Fernando T.; Pointing, Stephen B. (Nature Publishing Group, 2019)
    Dispersal is a critical yet poorly understood factor underlying macroecological patterns in microbial communities1. Airborne microbial transport is assumed to occupy a central role in determining dispersal outcomes2,3, and ...
  • Ancient origins determine global biogeography of hot and cold desert cyanobacteria

    Bahl, Justin; Lau, Maggie C.Y.; Smith, Gavin J.D.; Vijaykrishna, Dhanasekaran; Cary, S. Craig; Lacap, Donnabella C.; Lee, Charles Kai-Wu; Papke, Thane; Warren-Rhodes, Kimberley A.; Wong, Fiona K.Y.; McKay, Christopher P.; Pointing, Stephen B. (Macmillan Publishers Limited, 2010)
    Factors governing large-scale spatio-temporal distribution of microorganisms remain unresolved, yet are pivotal to understanding ecosystem value and function. Molecular genetic analyses have focused on the influence of ...
  • 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 ...