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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.
Microplastics (MPs) threaten biodiversity significantly, permeating aquatic and terrestrial ecosystems and disrupting essential biological and ecological processes. Insects, critical for maintaining ecosystem balance, are increasingly impacted by MP contamination. This review highlights the exposure routes of MP in insects that lead to physiological effects such as reduced reproductive success, altered behavior, and compromised immune responses. These disruptions may cause cascading effects on ecosystem services from insects such as pollination, natural pest control, and nutrient cycling, with profound consequences for agriculture and biodiversity. The review further explores strategies for mitigating MP pollution, including advancements in recycling technologies, improved monitoring methods, and the development of robust policy frameworks. The long-term ecological impacts of MP contamination on insect populations, including potential declines in key species and shifts in community dynamics, need to be focused on in future research. Developing bio-based solutions leveraging microbial and enzymatic approaches for MP degradation is also required. By integrating innovative research, education, and sustainable practices, a comprehensive response can be developed to mitigate the impacts of MPs on insects, protect biodiversity, and ensure ecosystem resilience in the face of growing environmental challenges.
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Microplastics: Environmental Risks in Insect Ecosystem Leading to Adversity on Human Health
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Researchers examine how microplastic pollution affects insect ecosystems, tracing how plastic debris degrades into microscopic particles that are ingested by insects, disrupting their physiology and behavior, with downstream consequences for pollination, food webs, and ultimately human health given insects' foundational role in terrestrial ecosystems.
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.
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.
Ecotoxicological Consequences of Microplastics in Aquatic Life
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Researchers reviewed how microplastics — tiny plastic particles under 5mm — harm aquatic ecosystems, documenting that fish, invertebrates, and other marine life can ingest them, leading to physical damage, toxic chemical exposure, and disruptions to feeding and reproduction.
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.