The importance of land-based prey for sympatrically breeding giant petrels at sub-Antarctic Marion Island

• Published in: Antarctic Science
• Main Authors: de Bruyn, P.J. Nico, Cooper, John, Bester, Marthán N., Tosh, Cheryl A.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 2007
• Subjects: Antarctic; Giganteus; Antarc*; Antarctic Science; Elephant Seal; Giant Petrel; Giant Petrels; Marion Island; Mirounga leonina; Southern Elephant Seal
• Online Access: http://dx.doi.org/10.1017/s0954102007000053; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102007000053

Northern (Macronectes halli) and southern (M. giganteus) giant petrels breed at different times at sub-Antarctic Marion Island. Long-term census and breeding success data are used to test for competitive overlap between the two species by correlating population trends with those of land-based prey/c...