Night diving by some emperor penguins during the winter breeding period at Cape Washington

TitleNight diving by some emperor penguins during the winter breeding period at Cape Washington
Publication TypeJournal Article
Year of Publication2018
AuthorsKooyman G.L, van Dam R.P, Huckstadt L.A
JournalJournal of Experimental Biology
Volume221
Date Published2018/01
Type of ArticleArticle
ISBN Number0022-0949
Accession NumberWOS:000419924000024
KeywordsAptenodytes forsteri; behavior; Cape Washington; winter
Abstract

All through the bird literature and feature films, there is much ado about dedicated emperor penguin males fasting for 115 days while they do all the incubation of the single egg. Sometimes, they may not fast for so long. Based on a winter visit to Cape Washington, we obtained evidence that some birds may feed before the egg is laid, and if they do, and some are males, then their fast is much less than 115 days. The consequence of a shorter fast for the male is a better chance of completing the 65 day incubation fast and success in fledging the chick. For those in northern colonies that may migrate south, there will be closer access to open water, but there will be the need to dive in the dark.

DOI10.1242/jeb.170795
Short TitleJ. Exp. Biol.
Student Publication: 
No
Research Topics: