Summary

Seals that survived their first year were on average 2% and 4% heavier at birth and at weaning than the “non-survivors”. First year survival rates were also calculated for weaners in the top quartile of weaning masses, these weaners had higher survival rates than those in the light quartile (71.55% and 54.15% respectively). Heavy weaners had greater fat reserves than light weaners and gained relatively more mass during lactation. Size and therefore condition at weaning influences first year survival.

Authors:McMahon C.R. Burton H.R. Bester M.N. Publisher: Cambridge Press Published in: 2000 Category 1: Peer-reviewed literature Program area: Biology
McMahon C.R., Burton H.R., Bester M.N. (2000) Weaning mass and the future survival of juvenile southern elephant seals, Mirounga leonina , at Macquarie Island, Antarctic Science 12. 149-153;

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Factors controlling the population status of the southern elephant seal <i>Mirounga leonina</i> at Macquarie Island VAN DEN HOFF, Mr John Petersen Island, Casey, Davis, Other, Vestfold Hills, Windmill Islands, Australia (or home country), King George Island, Macquarie Island
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