Plastic ingestion as an evolutionary trap: Toward a holistic understanding.

Area of Science:

• Environmental Science
• Ecology
• Evolutionary Biology

Background:

• Human activities are significantly altering global ecosystems.
• Plastic pollution is a major environmental issue alongside climate change and biodiversity loss.
• Wildlife ingestion of plastics is a growing ecological concern.

Purpose of the Study:

• To review the occurrence of plastic ingestion by wildlife.
• To explore the evolutionary and ecological drivers of plastic consumption in animals.
• To explain why organisms ingest plastic using a unified theoretical framework.

Main Methods:

• Literature review synthesizing evolutionary, ecological, and cognitive approaches.
• Application of the evolutionary trap theory to plastic ingestion.
• Identification of key factors influencing plastic consumption by wildlife.

Main Results:

• Plastic ingestion by wildlife is widespread globally.
• Three primary factors drive plastic ingestion: environmental availability, individual acceptance thresholds, and sensory cue overlap between plastics and natural food.
• The evolutionary trap theory provides a framework for understanding this behavior.

Conclusions:

• Plastic ingestion represents an evolutionary trap for wildlife.
• Addressing plastic pollution requires understanding the interplay of environmental factors and animal behavior.
• Further research should integrate ecological and evolutionary perspectives to mitigate plastic ingestion impacts.