Contaminants in Brown Pelican Eggs, Collected from Texas and Mexico

摘要

Brown pelican eggs were collected from one nesting colony on the Texas coast and two colonies on the Gulf Coast of Mexico: Pelican Island, Texas; Isla Contoy, Quintana Roo, Mexico; and Laguna de1 Carmen, Tabasco, Mexico. The objectives of the study were to: (1) compare the concentrations of several organic and trace element contaminants in eggs collected in Texas with those collected in Mexico; (2) compare the concentrations of contaminants in Pelican Island eggs with historic data on these contaminants for Texas brown pelican eggs; and (3) to assess the significance of these contaminants for brown pelicans.