Attributes / relations provided by
♦ ¹CephBase - Cephalopod (Octopus, Squid, Cuttlefish and Nautilus) Database
♦ ²Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
♦ ³Geographic variation in the foraging behaviour, diet and chick growth of rockhopper penguins, Yann Tremblay, Yves Cherel, Mar Ecol Prog Ser 251: 279–297, 2003
♦ ⁴Diet of the Humboldt penguin (Spheniscus humboldti) in northern and southern Chile, C. Herling, B. M. Culik, J. C. Hennicke, Marine Biology (2005) 147: 13–25
♦ ⁵Feeding ecology and niche segregation in oceanic top predators off eastern Australia, Jock W. Young, Matt J. Lansdell, Robert A. Campbell, Scott P. Cooper, Francis Juanes, Michaela A. Guest, Mar Biol (2010) 157:2347–2368