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SUNScholar Research Repository

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  • Conserving pattern and process in the Southern Ocean : designing a Marine Protected Area for the Prince Edward Islands 
    Lombard, A. T.   Reyers, B.   Schonegevel, L. Y.   Cooper, J.   Smith-Adao, L. B.   Nel, D. C.   Froneman, P. W.   Ansorge, I. J.   Bester, M. N.   Tosh, C. A.   Strauss, T.   Akkers, T.   Gon, O.   Leslie, R. W.   Chown, Steven L. (Antarctic Science Ltd, 2007)
    South Africa is currently proclaiming a Marine Protected Area (MPA) in the Exclusive Economic Zone (EEZ) of its sub-Antarctic Prince Edward Islands. The objectives of the MPA are to: 1) contribute to a national and global ...
  • Cuticular lipid mass and desiccation rates in Glossina pallidipes : interpopulation variation 
    Jurenka, Russell   Terblanche, John S.   Klok, C. Jaco   Chown, Steven L.   Krafsur, Elliot S. (The Royal Entomological Society, 2007)
    Tsetse flies, Glossina pallidipes (Diptera: Glossinidae) are said to have strong dispersal tendencies. Gene flow among these populations is estimated to be the theoretical equivalent of no more than one or two reproducing ...
  • The effects of temperature, body mass and feeding on metabolic rate in the tsetse fly, Glossina morsitans centralis 
    Terblanche, John S.   Chown, Steven L. (The Royal Entomological Society, 2007)
    Metabolic rate variation with temperature, body mass, gender and feeding status is documented for Glossina morsitans centralis . Metabolic rate [mean ± SE; VCO2 = 19.78 ± 3.11 uL CO 2 h −1 in males (mean mass = 22.72 ± ...
  • Human impacts, energy availability and invasion across Southern Ocean Islands 
    Chown, Steven L.   Hull, Bruce   Gaston, Kevin J. (Blackwell Publishing, 2005-11)
    Aim: Ongoing biological invasions will enhance the impacts of humans on biodiversity. Nonetheless, the effects of exotic species on diversity are idiosyncratic. Increases in diversity might be a consequence of similar ...
  • Indirect effects of invasive species removal devastate World Heritage island 
    Bergstrom, Dana M.   Lucieer, Arko   Kiefer, Kate   Wasley, Jane   Belbin, Lee   Pedersen, Tore K.   Chown, Steven L. (British Ecological Society, 2009)
    1. Owing to the detrimental impacts of invasive alien species, their control is often a priority for conservation management. Whereas the potential for unforeseen consequences of management is recognized, their associated ...
  • Mytilus on the move : transport of an invasive bivalve to the Antarctic 
    Lee, J. E.   Chown, Steven L. (Inter-Research, 2007)
    Increasing numbers of scientific and tourist vessels are entering the Antarctic region and have the potential to bring with them a range of organisms that are not currently found in the region. Little is known about the ...
  • Parameter landscapes unveil the bias in allometric prediction 
    Hui, Cang   Terblanche, John S.   Chown, Steven L.   McGeoch, Melodie A. (British Ecological Society, 2010)
    1. The criteria for choosing the appropriate line-fitting method (LFM) and correction estimator for determining the functional allometric relationship, and for predicting the Y-variable accurately are controversial. A ...
  • Phenotypic plasticity of locomotion performance in the seed harvester Messor capensis (Formicidae) 
    Clusella-Trullas, Susana   Terblanche, John S.   Chown, Steven L. (University of Chicago, 2010-05)
    Temperature dependence, energetics, and speed of locomotion have important implications for the ecology and evolution of ants. Here, we report the results of a full-factorial study investigating the responses of active ...
  • Rapid cold-hardening in a Karoo beetle, Afrinus sp. 
    Sinclair, Brent J.   Chown, Steven L. (The Royal Entomological Society, 2006)
    In the insect rapid cold-hardening response, survival at subzero temperatures is greatly improved by a brief pre-exposure at a milder temperature. It is predicted that insects with minimal cold tolerance capabilities living ...