The potential costs of flipper-bands to penguins

Jackson, S. and Wilson, Rory P. (2002) The potential costs of flipper-bands to penguins Functional Ecology, 16 . pp. 141-148.

j.0269-8463.2001.00606.x.pdf - Published Version
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The published literature on the effects of flipper-bands on penguin ecology is reviewed.
Six published studies show the following.
In Adélie Penguins Pygoscelis adeliae, flipper-bands directly damaged flippers,
increased swimming costs by 24%, decreased survival in the first year after banding by
28%, and may have accelerated decline of a dwindling colony by 3%.
Adult return rates to colonies among flipper-banded Adélie, Chinstrap P. antarctica and Gentoo P. papua Penguins decreased by 8%, 12% and 25%, respectively, between singleand
double-banded penguins. Juvenile return rates among Gentoo Penguins were reduced by 10·5%. Return rates to the colony among double-banded King Penguins Aptenodytes patagonicus
were 31·3% and 6·7% lower than among single-banded birds in the first and second years after banding, respectively, and single flipper-banded birds showed annual survival rates 21·1% lower than those of birds fitted with subcutaneous transponders.
Among Royal Penguins Eudyptes schlegeli, there were no differences between chick growth, adult over-winter survival and fledging success between flipper-banded birds and birds fitted with transponders.
Adélie Penguin adult annual survival rates were lower among flipper-banded birds than among unbanded birds.
On the basis of dive profiles for Adélie Penguins, it is estimated that increased swimming costs of 5% reduce prey contact time by 10%, and of 24% reduce prey contact time by 48%. These estimated ‘knock-on’ or cumulative costs coupled with the survival and breeding
costs shown by the majority of published field studies suggest that data collected on some
flipper-banded populations are biased.
The advantages and disadvantages of an alternative long-term marking technique,
subcutaneously implanted passively interrogated transponder tags, are discussed. Research
projects currently testing transponders and flipper-bands worldwide are listed.

Document Type: Article
Keywords: Conservation, energetics, foraging costs
Research affiliation: OceanRep > Leibniz Institute of Marine Sciences
Refereed: Yes
ISSN: 0269-8463
Date Deposited: 18 Feb 2008 17:25
Last Modified: 25 Apr 2016 08:19

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