Correction: Five decades on: Use of historical weaning size data reveals that a decrease in maternal foraging success underpins the long-term decline in population of southern elephant seals (Mirounga leonina)

更正：五十年后：利用历史断奶体型数据表明，母体觅食成功率的下降是南方象海豹（Mirounga leonina）种群长期下降的根本原因。