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The impact of the giant iceberg B09B on population size and breeding success of Adélie penguins in Commonwealth Bay, Antarctica

  • Kerry-Jayne Wilson (a1), Chris S.M. Turney (a2), Christopher J. Fogwill (a2) and Estelle Blair (a3)

The arrival of iceberg B09B in Commonwealth Bay, East Antarctica, and subsequent fast ice expansion has dramatically increased the distance Adélie penguins (Pygoscelis adeliae) breeding at Cape Denison must travel in search of food. This has provided a natural experiment to investigate the impact of iceberg stranding events and sea ice expansion along the East Antarctic coast. As part of the Australasian Antarctic Expedition 2013–14, the Adélie penguin colony at Cape Denison was censused to compare to historic counts. Whilst some 5520 pairs still bred at Cape Denison there has been an order of magnitude decline in Adélie numbers in the area in comparison to the first counts a century ago and, critically, recent estimates based on satellite images and a census in 1997. In contrast, an Adélie population on the eastern fringe of Commonwealth Bay just 8 km from the fast ice edge was thriving, indicating the arrival of B09B and fast ice expansion was probably responsible for the observed recent population decline. In conclusion, the Cape Denison population could be extirpated within 20 years unless B09B relocates or the now perennial fast ice within the bay breaks out. Our results have important implications for wider East Antarctic if the current increasing sea ice trend continues.

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D.G. Ainley , P.R. Wilson , K.J. Barton , G. Ballard , N. Nur & B. Karl 1998. Diet and foraging effort of Adélie penguins in relation to pack-ice conditions in the southern Ross Sea. Polar Biology, 20, 311319.

K.R. Arrigo & G.L. van Dijken 2003. Impact of iceberg C-19 on Ross Sea primary production. Geophysical Research Letters, 30, 10.1029/2003GL017721.

K.R. Arrigo , G.L. van Dijken , D.G. Ainley , M.A. Fahnestock & T. Markus 2002. Ecological impact of a large Antarctic iceberg. Geophysical Research Letters, 29, 10.1029/2001GL014160.

P. Campagne , X. Crosta , M.N. Houssais , D. Swingedouw , S. Schmidt , A. Martin , E. Devred , S. Capo , V. Marieu , I. Closset & G. Masse 2015. Glacial ice and atmospheric forcing on the Mertz Glacier Polynya over the past 250 years. Nature Communication, 6, 10.1038/ncomms7642.

G.F. Clark , E.M. Marzinelli , C.J. Fogwill , C.S.M. Turney & E.L. Johnston 2015. Effects of sea ice cover on marine benthic communities: a natural experiment in Commonwealth Bay, East Antarctica. Polar Biology, 38, 10.1007/s00300-015-1688-x.

K.M. Dugger , G. Ballard , D.G. Ainley , P.O. Lyver & C. Schine 2014. Adélie penguins coping with environmental change: results from a natural experiment at the edge of their breeding range. Frontiers in Ecology and Evolution, 2, 10.3389/fevo.2014.00068.

S.D. Emslie , P.A. Berkman , D.G. Ainley , L. Coats & M. Polito 2003. Late-Holocene initiation of ice-free ecosystems in the southern Ross Sea, Antarctica. Marine Ecology Progress Series, 262, 1925.

M. Lacarra , M.N. Houssais , C. Herbaut , E. Sultan & M. Beauverger 2014. Dense shelf water production in the Adélie Depression, East Antarctica, 2004–2012: impact of the Mertz Glacier calving. Journal of Geophysical Research-Oceans, 119, 52035220.

M.A. LaRue , D.G. Ainley , M. Swanson , K.M. Dugger , P.O. Lyver , K. Barton & G. Ballard 2013. Climate change winners: receding ice fields facilitate colony expansion and altered dynamics in an Adélie penguin metapopulation. PLoS ONE, 8, 10.1371/journal.pone.0060568.

A. Lescroël , G. Ballard , D. Grémillet , M. Authier & D.G. Ainley 2014. Antarctic climate change: extreme events disrupt plastic phenotypic response in Adélie penguins. PLoS ONE, 9, 10.1371/journal.pone.0085291.

H.J. Lynch & M.A. LaRue 2014. First global census of the Adélie penguin. Auk, 131, 10.1642/AUK-14-31.1

E.H. Shadwick , S.R. Rintoul , B. Tilbrook , G.D. Williams , N. Young , A.D. Fraser , H. Marchant , J. Smith & T. Tamura 2013. Glacier tongue calving reduced dense water formation and enhanced carbon uptake. Geophysical Research Letters, 40, 904909.

L.D. Shepherd , C.D. Millar , G. Ballard , D.G. Ainley , P.R. Wilson , G.D. Haynes , C. Baroni & D.M. Lambert 2005. Microevolution and mega-icebergs in the Antarctic. Proceedings of the National Academy of Sciences of the United States of America, 102, 16 71716 722.

T. Tamura , G.G. Williams , A.D. Fraser & K.I. Ohshima 2012. Potential regime shift in decreased sea ice production after the Mertz Glacier calving. Nature Communication, 3, 10.1038/ncomms1820.

Y. Watanuki , A. Kato , Y. Mori & Y. Naito 1993. Diving performance of Adélie penguins in relation to food availability in fast sea ice areas: comparison between years. Journal of Animal Ecology, 62, 634646.

Y. Watanuki , A. Kato , Y. Naito , G. Robertson & S. Robinson 1997. Diving and foraging behaviour of Adélie penguins in areas with and without fast sea ice. Polar Biology, 17, 296304.

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Antarctic Science
  • ISSN: 0954-1020
  • EISSN: 1365-2079
  • URL: /core/journals/antarctic-science
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