Effects of the 1982/83 El Nino on Galápagos fur seals and sea lions
In: Noticias de Galápagos, Jg. 42, S. 22-231985
Effects of the lunar cycle on the Galápagos fur seal, Arctocephalus galapagoensis
In: Oecologia, Jg. 48 H. 1, S. 85-921981Estimating diet composition from scat analysis in otariid seals (Otariidae): is it reliable?
In: Canadian journal of zoology, Jg. 66 H. 8, S. 1865-18701988