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Tiny water-walking bugs provide scientists with insights on how microplastics are pushed underwater
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Researchers studied water-walking insects to understand the surface tension and hydrodynamic forces that determine whether microplastic particles float or sink, providing mechanistic insight into how plastic pollutants move at the water surface interface. Understanding the physical mechanisms governing microplastic transport in water bodies is essential for modeling contamination spread and predicting exposure risk for aquatic organisms across different depth zones.
Microplastic pollution is a growing problem − one lab is looking at tiny insects as inspiration for how these pollutants might move through water.
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Microplastics are getting into mosquitoes and contaminating new food chains
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Mosquito larvae ingest microplastics in aquatic environments and carry them into adult mosquitoes, which are then eaten by birds and other terrestrial animals, creating a novel pathway for microplastics to enter non-marine food chains. This aquatic-to-terrestrial transfer mechanism extends the reach of microplastic contamination far beyond oceans and waterways into land-based ecosystems and potentially human food sources.
A permeating threat of microplastics on insects and their ecological roles
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Researchers review how microplastic contamination disrupts insect physiology — reducing reproductive success, altering behavior, and compromising immunity — with cascading consequences for pollination, pest control, and nutrient cycling that could ripple broadly through agriculture and biodiversity.
Microplastic pollution is everywhere, but scientists are still learning how it harms wildlife
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A broad review of wildlife studies finds that microplastics frequently cause negative biological effects including reduced reproduction, altered feeding behavior, and physical damage, though results vary considerably across species and plastic types. The inconsistency highlights the need for standardized research methods to better understand which organisms and exposure levels pose the greatest ecological risk.
Insect Interactions with Microplastics Under Different Ecosystems
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This review examines how insects interact with microplastics across aquatic and terrestrial ecosystems, including ingestion, bioaccumulation, and trophic transfer to insectivorous predators. Insects are key links in food webs connecting environmental microplastic contamination to vertebrate animals and humans, making their role in microplastic transfer a critical and underappreciated exposure pathway.
The key role of surface tension in the transport and quantification of plastic pollution in rivers
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Researchers discovered that surface tension — the same force that lets insects walk on water — traps a large portion of floating plastic in rivers at the water's surface, meaning current monitoring methods that only sample the surface may underestimate total riverine plastic pollution by up to 90%.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.