1. Time budget in Galapagos fur seal pups: the influence of the mother's presence and absence on pup activity and play;Arnold;Behaviour,1985
2. Biological consequences of El Niño;Barber;Science,1983
3. Southern fur seals - Arctocephalus (Geoffroy Saint-Hilaire and Cuvier, 1826);Bonner,1981
4. Oceanographic events during El Niño;Cane;Science,1983
5. Propagated temperature changes during onset and recovery of the 1982-83 El Niño;Chavez;Nature,1984