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The breeding biology and factors affecting reproductive success in rockhopper penguins Eudyptes chrysocme at Macquarie Island
Citation
Hull, CL and Hindell, MA and Le Mar, K and Scofield, P and Wilson, J and Lea, MA, The breeding biology and factors affecting reproductive success in rockhopper penguins Eudyptes chrysocme at Macquarie Island, Polar Biology, 27, (11) pp. 711-720. ISSN 0722-4060 (2004) [Refereed Article]
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Copyright Statement
The original publication is available at www.springerlink.com
Official URL: http://www.springerlink.com
DOI: doi:10.1007/s00300-004-0643-z
Abstract
Adult mass changes, egg morphometrics, chick
growth rates, fledging masses, reproductive success and
reasons for reproductive failure were examined in
rockhopper penguins at Macquarie Island from 1993/
1994 to 1995/1996. Mean arrival masses, growth rates of
chicks and fledging masses exhibited inter-annual variability,
while egg morphometrics, hatching success
(68.0±6.0%) and reproductive success (47.3±8.3%)
were constant between years. Reproductive failures
occurred primarily during incubation, with the majority
of eggs lost to great skuas. Logistic regressions revealed
that no variable significantly explained hatching success,
and only in 1994/1995 was fledging success significantly
correlated with the position of nest in the colony (those
in the centre were more successful than those on the
periphery). Reproductive success during this study was
relatively high, and therefore an assessment during poor
years would be instructive, particularly in relation to
aspects of the penguins’ foraging ecology.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Research Division: | Earth Sciences |
| Research Group: | Oceanography |
| Research Field: | Physical Oceanography |
| Objective Division: | Environment |
| Objective Group: | Climate and Climate Change |
| Objective Field: | Climate Variability (excl. Social Impacts) |
| Author: | Hull, CL (Dr Cindy Hull) |
| Author: | Hindell, MA (Professor Mark Hindell) |
| Author: | Le Mar, K (Miss Kirsten Le Mar) |
| Author: | Wilson, J (Dr Johanna Wilson) |
| Author: | Lea, MA (Associate Professor Mary-Anne Lea) |
| ID Code: | 32033 |
| Year Published: | 2004 |
| Web of Science® Times Cited: | 17 |
| Deposited By: | Zoology |
| Deposited On: | 2004-08-01 |
| Last Modified: | 2009-12-10 |
| Downloads: | 2 View Download Statistics |
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