Sentinel species: How Chemicals Affect Avian Predators

Anthropogenic chemicals and effects on avian species

Posted on September 11, 2025

Over the course of more than 40 years of academic research, I have focused on the transport and transformation of anthropogenic chemicals released into various environmental compartments, including air, water, soil, sediments, and biota. This field, known as “environmental chemodynamics,” is crucial for understanding the fate and movement of diverse anthropogenic chemicals. My work has centered on tracing the pathways of these chemicals to their receptors across different environmental media. While humans are the ultimate receptors, most chemicals bioaccumulate in various matrices before reaching humans through ingestion or contact, either intentionally or inadvertently. Apex predators, particularly avian species, serve as “sentinel organisms” in this context.

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