• Challenges to the future conservation of the Antarctic 

      Chown, S.L.; Lee, J.E.; Hughes, K.A.; Barnes, J.; Barrett, P.J.; Bergstrom, D.M.; Convey, P.; Cowan, D.A.; Crosbie, K.; Dyer, G.; Frenot, Y.; Grant, S.M.; Herr, D.; Kennicutt II, M.C.; Lamers, M.; Murray, A.; Possingham, H.P.; Reid, K.; Riddle, M.J.; Ryan, P.G.; Sanson, L.; Shaw, J.D.; Sparrow, M.D.; Summerhayes, C.; Terauds, A.; Wall, D.H. (2012)
    • Changes in soil nematode populations indicate an annual life cycle at Cape Hallett, Antarctica 

      Yeates, G.W.; Scott, M.B.; Chown, S.L.; Sinclair, B.J. (Elsevier GmbH., 2009)
      Soil biological studies have suggested that generations of terrestrial nematodes in continental Antarctica may take many years. We sampled soil nematodes at three sites in the Adélie penguin colony at Cape Hallett on four ...
    • Climate change and elevational diversity capacity: Do weedy species take up the slack? 

      Chown, S.L.; Le Roux, P.C.; Ramaswiela, T.; Kalwij, J.M.; Shaw, J.D.; McGeoch, M.A. (Royal Society, 2012)
      Climate change leads to species range shifts and consequently to changes in diversity. For many systems, increases in diversity capacity have been forecast, with spare capacity to be taken up by a pool of weedy species moved ...
    • Climatic predictors of temperature performance curve parameters in ectotherms imply complex responses to climate change 

      Clusella-Trullas, S.; Blackburn, T.M.; Chown, S.L. (The University of Chigago Press, 2011-06)
      Determining organismal responses to climate change is one of biology’s greatest challenges. Recent forecasts for future climates emphasize altered temperature variation and precipitation, but most studies of animals have ...
    • Climatic variability and hemispheric differences in insect cold tolerance: support from southern Africa 

      Sinclair, BJ; Chown, SL (BLACKWELL PUBLISHING, 2005-04-01)
      1. Insects generally survive subzero temperatures by utilizing either freeze tolerance or freeze avoidance. Comparative analyses from a limited data set have indicated that freeze tolerance may be predominant among species ...
    • Coefficient shifts in geographical ecology: an empirical evaluation of spatial and non-spatial regression 

      Bini, L.M.; Diniz-Filho, J.A.F.; Rangel, T.F.L.V.B.; Akre, T.S.B.; Albaladejo, R.G.; Albuquerque, F.S.; Aparicio, A.; Araujo, M.B.; Baselga, A.; Beck, J.; Bellocq, M.I.; Bohning-Gaese, K.; Borges, P.A.V.; Castro-Parga, I.; Chey, V.K.; Chown, S.L.; de Marco, P. Jr.; Dobkin, D.S.; Ferrer-Castan, D.; Field, R.; Filloy, J.; Fleishman, E.; Gomez, J.F.; Hortal, J.; Iverson, J.B.; Kerr, J.T.; Kissling, W.D.; Kitching, I.J.; Leon-Cortes, J.L.; Lobo, J.M.; Montoya, D.; Morales-Castilla, I.; Moreno, J.C.; Oberdorff, T.; Olalla-Tarraga, M.A.; Pausas, J.G.; Qian, H.; Rahbek, C.; Rodrıguez, M.A.; Rueda, M.; Ruggiero, M.; Sackmann, P.; Sanders, N.J.; Terribile, L.C.; Vetaas, O.R.; Hawkins, B.A. (The Authors. Journal compilation, 2009)
      A major focus of geographical ecology and macroecology is to understand the causes of spatially structured ecological patterns. However, achieving this understanding can be complicated when using multiple regression, because ...
    • Collembola diversity in the critically endangered Cape Flats Sand Fynbos and adjacent pine plantations 

      Liu, W.P.A.; Janion, C.; Chown, S.L. (Elsevier, 2012)
      The replacement of indigenous vegetation by commercial alien plantations can strongly affect invertebrate species richness and composition. This has been demonstrated for some invertebrate taxa in the Fynbos vegetation ...
    • Colonisation of sub-Antarctic Marion Island by a non-indigenous aphid parasitoid Aphidius matricariae (Hymenoptera, Braconidae) 

      Lee, J.E.; Slabber, S.; Jansen van Vuuren, B.; van Noort, S.; Chown, S.L. (Springer, 2007)
      Over the past two decades seven non-indigenous vascular plant or arthropod species have established reproducing populations at sub-Antarctic Marion Island (46°54'S, 37°55'E). Here we record the eighth establishment, a ...
    • Comment on "Erosion of lizard diversity by climate change and altered thermal niches" 

      Clusella-Trullas, S.; Chown, S.L. (Clusella-Trullas, S. and Chown, S.L. (2011) Comment on "Erosion of lizard diversity by climate change and altered thermal niches". Science, 332, 537. DOI: 10.1126/science.1195193, 2011-04-29)
      Using a regionally calibrated model, Sinervo et al. (Reports, 14 May 2010, p. 894)predicted potential climate change impacts on lizard populations and estimated that many extinctions are under way. We argue that this model ...
    • Concerning invasive species: Reply to Brown and Sax 

      Cassey, P.; Blackburn, T.M.; Duncan, R.P.; Chown, S.L. (BLACKWELL PUBLISHING ASIA, 2005-06)
      Biological invasions have commonly occurred, and to a lesser degree continue to do so, without human assistance. It is, however, a combination of the rate and magnitude, as well as the distances and agency involved, that ...
    • Conservation biogeography of the Antarctic 

      Terauds, A.; Chown, S.L.; Morgan, F.; Peat, H.J.; Watts, D.J.; Keys, H.; Convey, P.; Bergstrom, D.M. (Blackwell Publishing, 2012)
      Aim To present a synthesis of past biogeographic analyses and a new approach based on spatially explicit biodiversity information for the Antarctic region to identify biologically distinct areas in need of representation ...
    • Conservation of Southern Ocean Islands: invertebrates as exemplars 

      Chown, S.L.; Lee, J.E.; Shaw, J.D. (Springer Science+Business Media B.V., 2008-03-12)
      The Southern Ocean Islands (SOI) have an exceptionally high conservation status, and human activity on the islands is low by comparison with more tropical islands. In consequence, overexploitation, pollution and habitat ...
    • 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, S.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 ...
    • Constraint and competition in assemblages: A cross-continental and modeling approach for ants 

      Parr, CL; Sinclair, BJ; Andersen, AN; Gaston, KJ; Chown, SL (UNIV CHICAGO PRESS, 2005-04)
      The mechanisms leading to structure in local assemblages are controversial. On the one hand, assemblage structure is thought to be the outcome of local interactions determined by the properties of species and their responses ...
    • Continent-wide risk assessment for the establishment of nonindigenous species in Antarctica 

      Chown, S.L.; Huiskes, A.H.L.; Gremmen, N.J.M.; Lee, J.E.; Terauds, A.; Crosbie, K.; Frenot, Y.; Hughes, K.A.; Imura, S.; Kiefer, K.; Lebouvier, M.; Raymond, B.; Tsujimoto, M.; Ware, C.; van de Vijver, B.; Bergstrom, D.M. (2012)
      Invasive alien species are among the primary causes of biodiversity change globally, with the risks thereof broadly understood for most regions of the world. They are similarly thought to be among the most significant ...
    • Control of discontinuous gas exchange in Samia cynthia: effects of atmospheric oxygen, carbon dioxide and moisture 

      Terblanche, J.S.; Marais, E.; Hetz, S.K.; Chown, S.L. (The Company of Biologists, 2008)
      The evolution of discontinuous gas exchange (DGE) in insects is highly controversial. Adaptive hypotheses which have obtained experimental support include a water savings mechanism for living in dry environments (hygric ...
    • Creating novel food webs on introduced Australian acacias: indirect effects of galling biological control agents 

      Veldtman, R.; Lado, T. F.; Botes, A.; Proches, S.; Timm, A.E.; Geertsema, H.; Chown, S.L. (Blackwell Publishing Ltd, 2011)
      Aim The use of host-specific biological control agents is widely considered an effective option for the management of invasive alien plant species. However, the formation of novel associations between released biological ...
    • Critical thermal limits and their responses to acclimation in two sub-Antarctic spiders: Myro kerguelenensis and Prinerigone vagans 

      Jumbam, K.R.; Terblanche, J.S.; Deere, J.A.; Somers, M.J.; Chown, S.L. (Springer-Verlag, 2008)
      Despite the relative richness of spider species across the Southern Ocean islands remarkably little information is available on their biology. Here, the critical thermal limits of an indigenous (Myro kerguelenensis, ...
    • Critical thermal limits depend on methodological context 

      Terblanche, J.S.; Deere, J.A.; Clusella-Trullas, S.; Janion, C.; Chown, S.L. (The Royal Society, 2007-09-18)
      A full-factorial study of the effects of rates of temperature change and start temperatures was undertaken for both upper and lower critical thermal limits (CTLs) using the tsetse fly, Glossina pallidipes. Results show ...