French Polar Institute Literature Database
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Author
Title
The long engagement of the emperor penguin
Type
Journal Article
Year
2013
Publication
POLAR BIOLOGY
Abbreviated Journal
Volume
36
Issue
4
Pages
573-577
Keywords
Antarctica, Breeding, Courtship, Ecology, Microbiology, Oceanography, Plant Sciences, Primary oceanic production, Spheniscidae, Zoology,
Abstract
In birds, courtship is generally short relative to the whole breeding cycle. Emperor penguins (Aptenodytes forsteri), however, are an exception as their courtship period is much longer (ca. 6 weeks) than the courtship of other penguin species. This strategy may appear surprising, as it is especially costly to fast and endure drastic climatic conditions for long periods at the colony (1.5 and up to 4 months for females and males, respectively). We examined here the reasons of this extended courtship period and found that emperor penguins returned earlier to the colony when primary oceanic production before breeding was high. This suggests that emperor penguins return to the colony as soon as primary oceanic production in summer allows them to replenish their body reserves. The extended period of time spent at the colony during courtship may therefore result from an evolutionary process that confers advantages to emperor penguins that arrive earlier at the colony by reducing predation risks and offering better chances of securing a partner.
Programme
137
Campaign
Address
Corporate Author
Thesis
Bachelor's thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0722-4060
ISBN
Medium
Area
Expedition
Conference
Notes
Approved
yes
Call Number
Serial
4456
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