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Behaviour and breeding success of gentoo penguins Pygoscelis papua in areas of low and high human activity


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Holmes, ND and Giese, MA and Achurch, H and Robinson, S and Kriwoken, L (2006) Behaviour and breeding success of gentoo penguins Pygoscelis papua in areas of low and high human activity. Polar Biology, 29 (5). pp. 399-412. ISSN 0722-4060

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A key factor influencing wildlife responses to human activity is the degree to which animals have been previously exposed to human stimuli. On subantarctic Macquarie Island, gentoo penguins Pygoscelis papua breed in areas of high and low human activity (on and off-station, respectively). We investigated the behaviour and breeding success of gentoo penguins on and offstation, by a) comparing the behavioural responses of guarding gentoos before, during and after exposure to standardised pedestrian approaches, and b) employing an observational study to determine how human activity may have contributed to within-season breeding success in light of other environmental and site variables. Behavioural responses to pedestrian visitation by gentoos off-station were significantly stronger than those of birds breeding on-station. However, no relationship was found between pedestrian activity and breeding success off-station. Breeding success was, however, positively related to colony size, and negatively related to the activity of other penguins, the number of nearby southern elephant seal Mirounga leonina harems and the location of colonies within short grassland. On-station, breeding success was amongst the highest recorded for that season. Habituation, predator exclusion and the relevance of these findings for management are discussed.

Item Type: Article
Keywords: gentoo penguins, Pygoscelis papua, Macquarie Island, human activity, behaviour, breeding success
Journal or Publication Title: Polar Biology
Page Range: pp. 399-412
ISSN: 0722-4060
Identification Number - DOI: 10.1007/s00300-005-0070-9
Additional Information: The original publication is available at
Date Deposited: 18 Jan 2008 03:19
Last Modified: 18 Nov 2014 03:27
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