Evolutionary Family Tree Found to Predict Plastic Ingestion in Seabirds

A global analysis of 240 seabird species reveals that evolutionary lineage is a stronger predictor of plastic accumulation than diet or feeding habits. Researchers studied 93,281 birds to determine the frequency of plastic ingestion, finding evidence of consumption in approximately three-quarters of the species sampled.

While ecological traits like body size and feeding methods showed no consistent impact on plastic occurrence, closely related species often displayed similar ingestion patterns. This study, published in Biology Letters, suggests that shared ancestry influences how seabirds interact with plastic in their environments, providing new insights beyond traditional dietary models.

Editor's note: The brief effectively summarizes the study's findings regarding evolutionary lineage as a predictor for plastic ingestion.