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Long-term effects of flipper bands on penguins
M Gauthier-Clerc1, J P Gendner, C A Ribic
1Station Biologique de la Tour du Valat, Le Sambuc, 13 200 Arles, France. gauthier-clerc@tourduvalat.org
Proceedings. Biological Sciences
|April 2, 2005
Summary
Flipper banding king penguins negatively impacts their breeding success and chick survival. This study highlights potential biases in long-term seabird monitoring programs that rely on traditional banding methods.
Area of Science:
- Marine Biology
- Ecology
- Animal Behavior
Background:
- Seabird population changes, especially penguins, are key indicators of marine ecosystem health.
- Long-term monitoring is crucial for understanding fisheries and climate impacts on marine resources.
- Traditional banding methods are widely used but may introduce biases.
Purpose of the Study:
- To assess the impact of flipper banding on king penguin behavior and reproductive success.
- To evaluate the reliability of banding in long-term seabird monitoring.
- To compare survival rates between banded and unbanded penguins.
Main Methods:
- Electronic tags (transponders) were implanted in 100 adult king penguins.
- 50 of these penguins were also fitted with traditional flipper bands.
- Data on arrival at colony, breeding probability, chick production, and survival were collected over 5 years.
Main Results:
- Flipper banding led to delayed colony arrival for courtship in some years.
- Banded penguins exhibited lower breeding probability and reduced chick production.
- Unbanded, electronically tagged chicks showed approximately double the survival rate compared to literature values for banded chicks.
Conclusions:
- Flipper banding introduces significant bias into king penguin monitoring studies.
- Traditional banding may compromise the accuracy of long-term seabird population assessments.
- Electronic tagging offers a less invasive alternative for monitoring seabird populations.
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