Population Trend and Breeding Biology of Gentoo Penguin in Martillo Island, Tierra Del Fuego, Argentina

Data on population size and some aspects of the breeding biology of Gentoo Penguins (Pygocelis papua) have been studied as part of a long-term monitoring program at Martillo Island in the Beagle Channel, Tierra del Fuego. The colony of Gentoo Penguin on Martillo Island is the only one reported in Ar...

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Bibliographic Details
Published in:Waterbirds (De Leon Springs, Fla.) Fla.), 2008-12, Vol.31 (4), p.625-631
Main Authors: Ghys, Mariela Inés, Rey, Andrea Raya, Schiavini, Adrián
Format: Article
Language:English
Subjects:
Beagle Channel
Bird nesting
Breeding
Breeding Biology
breeding population
Breeding seasons
Eggs
Environmental conservation
Gentoo Penguins
Hatching
Marine
Population trends
Pygoscelis papua
Reproductive success
Sea birds
Tourism
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Summary:Data on population size and some aspects of the breeding biology of Gentoo Penguins (Pygocelis papua) have been studied as part of a long-term monitoring program at Martillo Island in the Beagle Channel, Tierra del Fuego. The colony of Gentoo Penguin on Martillo Island is the only one reported in Argentina and has been monitored regularly since 2000. Timing and hatching success were similar to those reported at other colonies in the South Atlantic Ocean/Antarctic Peninsula region. A maximum of twelve nests were recorded during the 2006/2007 season, with an average breeding success of 1.0 chicks/nest. The Gentoo Penguin colony at Martillo Island increased by 19% in the past 13 y, while other colonies in the south Atlantic region and the Antarctic Peninsula have been decreasing or stable.
ISSN:1524-4695
1938-5390
DOI:10.1675/1524-4695-31.4.625