Abstract
We report a dramatic change in the arrival time of little penguins Eudyptula minor at their breeding colony when a heavy low-level fog was present on the southern beaches of Phillip Island, Australia. On the evening of 21 December 2002, only 5% of penguins arrived at the expected time, and the peak time at arrival that night was 2 h behind the peak arrival times of previous and subsequent days. It appears that little penguins were unable or unwilling to return to the colony under the low visibility caused by the fog. Only half (52%) of the average number of penguins returned to the colony on the evening of the fog. We propose two explanations for our observation. First, penguins could have been close to the colony but did not come ashore in conditions of poor visibility to avoid predation. Secondly, the extensive fog may have affected the orientation of the penguins and they were unable to find their way back home. Our results could serve as indirect evidence for both hypotheses.
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References
Alerstam T (1990) Ecological causes and consequences of bird orientation. Experientia 46:405–415
Bonadonna F, Benhamou S, Jouventin P (2003a) Orientation in “featureless” environments: the extreme case of pelagic birds. In: Berthold P, Gwinner E, Sonnenschein E (eds) Avian migration. Springer, Berlin Heidelberg New York, pp 367–377
Bonadonna F, Chamaillé-Jammes S, Pinaud D, Weimerskirch H (2003b) Magnetic cues: are they important in black-browed albatrosses Diomedea melanophris orientation? Ibis 145:152–155
Bonadonna F, Bajzak C, Benhamou S, Igloi K, Jouventin P, Lipp HP, Dell’Omo G (2005) Orientation in the wandering albatross: interfering with magnetic perception does not affect orientation performance. Proc R Soc Lond B 272:489–495
Burger J, Staine KJ (1993) Nocturnal behavior of gulls in coastal New Jersey. Estuaries 16:809–814
Cannell BL, Cullen JM (1998) The foraging behaviour of little penguins Eudyptula minor at different light levels. Ibis 140:467–471
Chiaradia AF, Kerry KR (1999) Nest attendance and breeding success in the little penguins Eudyptula minor at Phillip Island, Australia. Mar Ornithol 27:13–20
Chiaradia A, Ropert-Coudert Y, Kato A, Mattern T, Yorke J (2007) Diving behaviour of little penguins from four colonies across their whole distribution range: bathymetry affecting diving effort and fledging success Marine Biology doi 10.1007/s00227-006-0593-9
Collins M, Cullen JM, Dann P (1999) Seasonal and annual foraging movements of little penguins from Phillip Island, Victoria. Wildl Res 26:705–721
Colls K, Whitaker R (1990) The Australian weather book. National Book Distributors and Publishers, Sydney
Daniel TA (2005) Group behaviour in little penguins Eudyptula minor and the factors affecting their attendance patterns at Phillip Island, Victoria. Monash University, Melbourne
Daniel T, Chiaradia A, Logan M, Quinn G, Reina RD (2007) Synchronized group association in little penguins (Eudyptula minor). Anim behav
Dann P (1992) Distribution, population trends and factors influencing the population size of little penguins Eudyptula minor on Phillip Island, Victoria. Emu 91:263–272
Emlen JT, Penney RL (1964) Distance navigation in the Adélie penguins. Ibis 106:417–431
Herbert PN (1987) Effect of fog on Herring gull Larus argentatus chick survivorship and parental foraging patterns. Colonial Waterbirds 10:103–105
Hull C, Hindell MA, Gales RP, Meggs RA, Moyle DI, Brothers NP (1998) The efficacy of translocating little penguins Eudyptula minor during an oil spill. Biol Conserv 86:392–400
Klomp NI, Wooller RD (1991) Patterns of arrival and departure by breeding little penguins at Penguin Island, Western Australia. Emu 91:32–35
Lima SL, Dill LM (1990) Behavioral decisions made under the risk of predation: a review and prospectus. Can J Zool 68:619–640
Mouritsen H (2001) Navigation in birds and other animals. Image Vis Comput 19:713–731
Mouritsen H (2003) Spatiotemporal orientation strategies of long-distance migrants. In: Berthold P, Gwinner E, Sonnenschein E (eds) Avian migration. Springer, Berlin Heidelberg New York, pp 493–513
Mouritsen H, Huyvaert KP, Frost BJ, Anderson DJ (2003) Waved albatrosses can navigate with strong magnets attached to their head. J Exp Biol 206:4155–4166
Penny RL, Emlen JT (1967) Further experiments on distance navigation in the Adélie penguin Pygoscelis adeliae. Ibis 109:99–109
Quinn GP, Keough MJ (2002) Experimental design and data analysis for biologists. Cambridge University Press, Melbourne
Robinson S, Chiaradia A, Hindell MA (2005) The effect of body condition on the timing and success of breeding in little penguins Eudyptula minor. Ibis 147:483–489
Stahel C, Gales R (1987) Little penguin, Fairy penguins in Australia. New South Wales University Press, Kensington
Vogt PF (2000) Control of nuisance birds in the airport arena by fogging. International bird strike committee, Amsterdam
Weavers BW (1992) Seasonal foraging ranges and travels at sea of little penguins, determined by radio-tracking. Emu 91:302–317
Yorke J, Ward S, Chiaradia A (2004) Diving behaviour of little penguins Eudyptula minor at different stages of breeding at Phillip Island, Australia. NZ J Zool 31:115–116
Acknowledgments
Thanks to Lynda Chambers for her advice and comments, and to the rangers of the Phillip Island Nature Park for their support and enthusiasm. Harald Tiedemann kindly designed and assembled the penguin counter. Cindy Hull provided the additional information on penguin translocation in Tasmania. Satellite images were downloaded from NASA modis and from Google earth. Roz Jessop kindly checked for previous fog events during penguin arrival times over 20 years. Comments from the editor and two anonymous referees have substantially improved this paper.
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Chiaradia, A., McBride, J., Murray, T. et al. Effect of fog on the arrival time of little penguins Eudyptula minor: a clue for visual orientation?. J Ornithol 148, 229–233 (2007). https://doi.org/10.1007/s10336-007-0125-5
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DOI: https://doi.org/10.1007/s10336-007-0125-5