Effects of helicopter operations on emperor penguin chicksEntry ID: heliemps
Abstract: Creching emperor penguin (Aptenodytes forsteri) chickswere exposed to two overflights by an S-76 twin engine helicopter at 1000 m: a current operational guideline for helicopter activity in Antarctica. The flights were conducted on the same day but under different wind conditions: a morning flight with a 10 kt (18 km.hr-1) katabatic blowing perpendicular to the direction of helicopter travel and ... an afternoon flight with virtually no wind. Background noise levels recorded in the morning, before the helicopter flight, were significantly higher than in the afternoon, but these differences were not detectable when the helicopter was overhead. There were also no significant differences in the way chicks responded to helicopters between the morning and afternoon flight. All chicks became more vigilant when the helicopter approached and 69% either walked or ran, generally moving less than 10 m toward other chicks (i.e. not scattering). Most chicks (83%) displayed flipper-flapping, probably indicating nervous apprehension. This behaviour was seldom displayed in the absence of disturbance. Although all effects were relatively transitory, results support the introduction of more conservative guidelines for helicopter operations around breeding localities of this species.
The fields in this dataset are:
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Start Date: 1997-11-21Stop Date: 1997-11-21
Quality Dataset and analysis complete The behaviour of creche age emperor penguin chicks was recorded on video while birds were exposed to controlled helicopter over-flights. Video tapes were analysed using &The Observer 3.0&, an interactive behaviour analysis program. Records of sound level (dB) were also taken and later correlated to penguin behaviour and helicopter activity.
Access Constraints The data are available for download from the url given below. The data are in Observer format, but can be opened with any text editor (with a loss of functionality).
Two excel spreadsheets are also part of the dataset.
Use Constraints This data set conforms to the PICCCBY Attribution License
Must be cited properly
Data Set Progress
Distribution Media: HTTP
Distribution Size: 69 kb
Distribution Format: txt
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +61 2 62741549
Fax: +61 2 6274 1006
Email: melissa.giese at ea.gov.au
C/ Marine Species Section GPO Box 787 Environment Australia
Province or State: Australian Capital Territory
Postal Code: 2601
Creation and Review Dates
DIF Creation Date: 1999-10-07
Last DIF Revision Date: 2008-04-10
Future DIF Review Date: 2000-10-07