Interactions of insects with micro- and nanoplastics: A review.
De-la-Torre GE, Flores-Miranda WE, Mora-Lizarme C, Valdiviezo-Gonzales L, Dobaradaran S
Urban Ecology
Insects disappearing from your garden or local park may be quietly choking on plastic pollution — and since insects pollinate plants, decompose organic matter, and anchor food webs, their decline threatens the health of every garden, farm, and wild green space.
Scientists reviewed over a hundred studies and found that tiny plastic particles — shed from clothes, packaging, and debris — are getting inside insects at a massive scale. These plastics can mess with how insects grow, fight off disease, and digest food. Some insects, like certain beetles, can actually chew through certain plastics, but most are just harmed by them.
Key Findings
Microplastic concentrations in insects ranged from 0.21 particles per individual in caddisflies to nearly 500 particles per individual in flies, showing widespread and severe contamination.
Flies (Diptera) and butterflies/moths (Lepidoptera) showed the strongest sensitivity to microplastic exposure, with sublethal effects on growth, immune function, behavior, and gut bacteria.
Some beetle larvae (Coleoptera) demonstrated the ability to physically fragment and biodegrade specific plastic polymers, pointing to a rare but significant biodegradation potential in insects.
chevron_right Technical Summary
A sweeping review of 114 studies finds that plastic particles — including tiny microplastics and nanoplastics — are contaminating insects at alarming rates, with some freshwater insects carrying nearly 500 plastic pieces per individual. The pollution disrupts insect development, immunity, and gut health, with potential ripple effects across ecosystems.
Abstract Preview
Despite the rapid spread of plastic pollution, and particularly micro- and nanoplastic pollution, a comprehensive systematic review of microplastic distribution and toxicology in terrestrial and aq...
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