pup mortality and evidence for pathogen exposure in galapagos sea lions (zalophus wollebaeki) on san cristobal island, galapagos, ecuador.the galapagos sea lion ( zalophus wollebaeki ), an endangered species, experiences high pup mortality (up to 100%) in years when el niño events reduce food supply in the galapagos islands. mortality of pups in non-el niño years is estimated to be 5% in undisturbed colonies. from 2009 to 2012 we observed high pup mortality (up to 66%) in colonies close to the galapagos capital, puerto baquerizo moreno, where contact with humans, domestic animals, and rats is frequent. gross postmortem findings fr ...201728318380
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