Abstract
In their Science paper, Desforges et al. (2018) address PCB pollution in killer whales, predicting a decline in calf survival and an associated collapse of killer whale populations worldwide. I refute the collapse, showing that it follows from a flawed model parametrisation. The result is not questioning contamination problems in killer whales, but only the bold prediction of global collapse.
Footnotes
P. O. Box 570, DK-3900 Nuuk, Greenland. Email: lawi{at}natur.gl
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