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First published online September 19, 2008
Journal of Experimental Biology 211, 3123-3127 (2008)
Published by The Company of Biologists 2008
doi: 10.1242/jeb.018325
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African penguins (Spheniscus demersus) can detect dimethyl sulphide, a prey-related odour

Gregory B. Cunningham1,*, Venessa Strauss2 and Peter G. Ryan1

1 Percy FitzPatrick Institute DST/NRF Centre of Excellence, University of Cape Town, Rondebosch 7701, South Africa
2 Southern African Foundation for the Conservation of Coastal Birds, PO Box 11116, Bloubergrand 7443, South Africa


Figure 1
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  		Fig. 1. The mean time (± s.e.m.) spent by African penguins in a 3 m span where either DMS or a control was deployed during the (A) morning or (B) evening presentations. In the morning, when birds were walking downwind, there were no significant differences, but penguins spent significantly longer in the presence of DMS in the evening when walking upwind (unpaired t-test, *P=0.003).

 

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  		Fig. 2. The number of African penguins that chose the arm of the Y-maze containing DMS or control solutions and those that did not choose either arm (no choice). When analyzing only the birds that made a choice, DMS was significantly preferred over the control (Binomial test, *P<0.001).

 

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© The Company of Biologists Ltd 2008