DDT, Chlordane, Toxaphene and PCB Residues in Newport Bay and Watershed: Assessment of Hazard to Wildlife and Human Health - Reviews of Environmental Contamination and Toxicology - page 119

Fig. 17 DDE dose-response in eggshell thinning in brown pelicans on the islands off the west
coast of Baja California. Figure 3 in Jehl ( 1973 ) reproduced with the permission from the author
and from The Condor, published by The Ornithological Society
Fig. 18 Log-linear relationship between DDE residues in eggs and eggshell thinning in brown
pelicans from Florida, South Carolina and California. Figure 2 reproduced from Blus et al. ( 1974a )