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South Georgia: a key location for linking physiological capacity to distributional changes in response to climate change

  • S.A. Morley (a1), H.J. Griffiths (a1), D.K.A. Barnes (a1) and L.S. Peck (a1)

Antarctic marine invertebrates from the Western Antarctic Peninsula (WAP) are generally stenothermal, with three-month survival and activity limits above the average maximum summer seawater temperature (1.0°C) of 1–6°C and 1–3°C respectively. For many of these species to survive the warmer maximum temperature at the sub-Antarctic island of South Georgia (5°C), they require either greater thermal flexibility, or must avoid the warmest water-masses. The mean depths and depth range of WAP gastropod and bivalve molluscs were compared with the mean depths of these same species at South Georgia; separated into water masses delimited by the 1°C isotherm at South Georgia, surface Antarctic water (SAW < 90 m), winter water (WW 90–150 m) and circumpolar deep water (CDW > 150 m). Bivalves in the SAW and CDW categories at the WAP were centred around the cooler WW (< 1.2°C) at South Georgia, with a narrower mean depth range for CDW bivalves. There was no difference in the average depth of gastropods, but a reduced depth range in the CDW. The apparent temperature limit to bivalve mean depths and not gastropods at South Georgia, suggests that further latitudinal comparisons could yield information on the underlying physiological mechanisms determining the range limits of Southern Ocean fauna.

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M.J. Angilletta 2009. Thermal adaptation: a theoretical and empirical synthesis. Oxford: Oxford University Press, 320 pp.

D.K.A. Barnes , H.J. Griffiths S. Kaiser 2009. Geographic range shift responses to climate change by Antarctic benthos: where we should look. Marine Ecology Progress Series, 393, 1326.

D.K.A. Barnes , V. Fuentes , A. Clarke , I.R. Schloss M.I. Wallace 2006. Spatial and temporal variation in shallow seawater temperatures around Antarctica. Deep-Sea Research II, 53, 853865.

M.A. Brandon , M. Naganobu , D.A. Demer , P. Chernyshkov , P.N. Trathan , S.E. Thorpe , T. Kameda , O.A. Berezhinskiy , E.J. Hawker S. Grant 2004. Physical oceanography in the Scotia Sea during the CCAMLR 2000 survey, austral summer 2000. Deep-Sea Research II, 51, 13011321.

P. Calosi , D.T. Bilton J.L. Spicer 2008. Thermal tolerance, acclimatory capacity and vulnerability to global climate change. Biological Letters, 4, 99102.

P. Calosi , D.T. Bilton , J.I. Spicer , S.C. Votier A. Arfield 2010. What determines a species’ geographical range? Thermal biology and latitudinal range size relationships in European diving beetles (Coleoptera: Dytiscidae). Journal of Animal Ecology, 79, 194204.

A. Clarke , H.J. Griffiths , K. Linse , D.K.A. Barnes J.A. Crame 2007. How well do we know the Antarctic marine fauna? A preliminary study of macroecological and biogeographical patterns in Southern Ocean gastropod and bivalve molluscs. Diversity and Distributions, 13, 620632.

T.J. Compton , M.J.A. Rijkenberg , J. Crent T. Piersma 2007. Thermal tolerance and climate variability: a comparison between bivalves from differing climates. Journal of Experimental Marine Biology and Ecology, 352, 200211.

J. Davenport 1997. Comparisons of the biology of the intertidal subantarctic limpets Nacella concinna and Kerguelenella lateralis. Journal of Molluscan Studies, 63, 3948.

C.A. Deutsch , J.J. Tewksbury , R.B. Huey , K.S. Sheldon , C.K. Ghalambor , D.C. Haak P.R. Martin 2008. Impacts of climate warming on terrestrial ectotherms across latitude. Proceedings of the National Academy of Sciences of the United States of America, 105, 66686672.

K.J. Gaston , S.L. Chown , P. Calosi , J. Bernado , D.T. Bilton , A. Clarke , S. Clusella-Trullas , C.K. Ghalamber , M. Konarzewski , L.S. Peck , W.P. Porter , H.O. Pőrtner , E.L. Rezende , P.M. Schulte , J.L. Spicer , J.H. Stillman , J.S. Terblanche M. van Kleunen 2009. Macrophysiology: a conceptual reunification. The American Naturalist, 174, 595612.

H.J. Griffiths , K. Linse J.A. Crame 2003. SOMBASE - Southern Ocean Mollusc Database: a tool for biogeographic analysis in diversity and ecology. Organisms Diversity and Evolution, 3, 207213.

B. Helmuth 2009. From cells to coastlines: how can we use physiology to forecast the impacts of climate change? Journal of Experimental Biology, 212, 753760.

B. Helmuth , C.D.G. Harley , P.M. Halpin , M. O’donnell , G.E. Hofmann C.A. Blanchette 2002. Climate change and latitudinal patterns of intertidal thermal stress. Science, 298, 10151017.

K. Linse , T. Cope , A.-N. Lorz C. Sands 2007. Is the Scotia Sea a centre of Antarctic marine diversification? Some evidence of cryptic speciation in the circum-Antarctic bivalve Lissarca notorcadensis (Arcoidea : Philobryidae). Polar Biology, 30, 10591068.

M.P. Meredith J.C. King 2005. Rapid climate change in the ocean west of the Antarctic Peninsula during the second half of the 20th century. Geophysical Research Letters, 32, L19604.

S.A. Morley , T. Hirse , H.O. Pörtner L.S. Peck 2009c. Geographical variation in thermal tolerance within Southern Ocean marine ectotherms. Comparative Biochemistry and Physiology A, 153, 154161.

S.A. Morley , G.L. Lurmann , J. Skepper , H.O. Pörtner L.S. Peck 2009a. Thermal plasticity of mitochondria: a latitudinal comparison between Southern Ocean molluscs. Comparative Biochemistry and Physiology A, 152, 423430.

S.A. Morley , K.S. Tan , R.W. Day , S.M. Martin , H.O. Pörtner L.S. Peck 2009b. Thermal dependency of burrowing in three species within the bivalve genus Laternula: a latitudinal comparison. Marine Biology, 156, 19771984.

C. Parmesan G. Yohe 2003. A globally coherent fingerprint of climate change impacts across natural systems. Nature, 421, 3742.

L.S. Peck 2005. Prospects for survival in the Southern Ocean: vulnerability of benthic species to temperature change. Antarctic Science, 17, 497507.

L.S. Peck , K.E. Webb D.M. Bailey 2004. Extreme sensitivity of biological function to temperature in Antarctic species. Functional Ecology, 18, 625630.

L.S. Peck , A. Massey , M.A.S. Thorne M.S. Clark 2009a. Lack of acclimation in Ophionotus victoriae: brittle stars are not fish. Polar Biology, 32, 399402.

L.S. Peck , M.S. Clark , S.A. Morley , A. Massey H. Rossetti 2009b. Animal temperature limits and ecological relevance: effects of size, activity and rates of change. Functional Ecology, 23, 248256.

E.S. Poloczanska , S.J. Hawkins , A.J. Southward M.T. Burrows 2008. Modelling the response of populations of competing species to climate change. Ecology, 89, 31383149.

H.O. Pörtner R. Knust 2007. Climate change affects marine fishes through the oxygen limitation of thermal tolerance. Science, 315, 9597.

T.L. Root 1988. Environmental factors associated with avian distributional boundaries. Journal of Biogeography, 15, 489505.

D. Stanwell-Smith L.S. Peck 1998. Temperature and embryonic development in relation to spawning and field occurrence of larvae of three Antarctic echinoderms. Biological Bulletin, 194, 4452.

G.C. Stevens 1989. The latitudinal gradient in geographical range: how so many species coexist in the tropics. American Naturalist, 133, 240256.

J.H. Stillman 2003. Acclimation capacity underlies susceptibility to climate change. Science, 301, 65.

J.J. Tewksbury , R.B. Huey C.A. Deutsch 2008. Putting the heat on tropical animals. Science, 320, 12961297.

S.E. Thorpe , S.E. Heywood , K.J. Stevens M.A. Brandon 2004. Tracking passive drifters in a high resolution ocean model: implications for interannual variability of larval krill transport to South Georgia. Deep-Sea Research I, 51, 909920.

J. Turner , J.E. Overland J.E. Walsh 2007. An Arctic and Antarctic perspective on recent climate change. International Journal of Climatology, 27, 277293.

M.J. Whitehouse , M.P. Meredith , P. Rothery , A. Atkinson , P. Ward R.E. Korb 2008. Rapid warming of the ocean around South Georgia, Southern Ocean, during the 20th century: forcings, characteristics and implications for lower trophic levels. Deep-Sea Research I, 55, 12181228.

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Antarctic Science
  • ISSN: 0954-1020
  • EISSN: 1365-2079
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