We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Insects at the crossroads of microplastics pollution: Mechanistic insights, ecological risks, and research frontiers
AI summary Read the abstract
This review of existing research found that tiny plastic particles called microplastics are harming insects by causing stress in their bodies and affecting their ability to digest food, think clearly, and reproduce. Insects also break down larger plastic pieces into even more microplastics, making the pollution problem worse. This matters because insects are crucial for pollinating our food crops and keeping ecosystems healthy, so plastic pollution could threaten our food supply.
Insects are foundational to ecosystem stability, biodiversity, and essential services such as pollination and nutrient cycling. However, global declines in insect biomass highlight the urgent need to characterize emerging ecological stressors. Microplastics (MPs), a pollutant of global concern, have recently been recognized as potential disruptors of terrestrial ecosystems, yet their interactions with insect biology remain poorly resolved. Using a PRISMA-based systematic review, the present study provides the first integrative synthesis of insect-MP dynamics, emphasizing exposure pathways, toxicological mechanisms, and ecological implications. Evidence indicates that MPs not only infiltrate insect habitats through pervasive anthropogenic inputs but are also actively processed by insects, which fragment macroplastics into secondary MPs, which are representing an overlooked amplification pathway of plastic pollution. Accumulation of MPs within insect tissues is increasingly associated with oxidative stress, inflammation, and disruptions in digestion, neural function, and reproduction. Furthermore, MPs serve as vectors for co-contaminants, amplifying composite toxicological risks. By consolidating mechanistic and empirical findings, the present review identifies critical data gaps and proposes directions for developing predictive models and risk assessment frameworks tailored to terrestrial invertebrates. Recognizing insects as both receptors and transformers of MPs reframes current paradigms of pollution fate and effect, advancing the scientific basis for assessing emerging stressors in terrestrial ecosystems.
More Papers Like This
Exposure Pathways and Toxicity of Microplastics in Terrestrial Insects
AI summary Read the abstract
This review summarizes what is known about how land-dwelling insects encounter, consume, and are affected by plastic pollution. Insects can accumulate microplastics and transfer them to animals higher up the food chain, and exposure has been linked to reduced growth, reproduction, and survival. Since insects play critical roles in pollination and soil health, widespread plastic contamination could have cascading effects on ecosystems and agriculture.
Interactions of insects with micro- and nanoplastics: A review
AI summary Read the abstract
This comprehensive review of 114 studies found that micro- and nanoplastics accumulate in both terrestrial and aquatic insects, causing reduced growth, impaired reproduction, oxidative stress, and gut microbiome disruption. Since insects are foundational to food webs and pollination, plastic contamination in insect populations could cascade through ecosystems and ultimately affect human food systems.
How much should we care about insect–plastic interactions?
AI summary Read the abstract
This review examines the complex interactions between insects and plastic pollution, covering how insects encounter, ingest, and are affected by microplastics and nanoplastics in the environment. Researchers also explored the potential role of certain insect species in degrading plastic waste. The study highlights that while insects may contribute to plastic breakdown, their exposure to plastic particles poses ecological risks that warrant further investigation.
A global meta-analysis reveals the toxicity of plastics on insect health
AI summary Read the abstract
This meta-analysis pools data from global studies to reveal that microplastics and nanoplastics are harmful to insect health, affecting survival, reproduction, and development. Since insects play critical roles in pollination and food chains, their decline from plastic pollution could have cascading effects on agriculture and the broader ecosystems humans depend on.
Interactions between microplastics and insects in terrestrial ecosystems—A systematic review and meta-analysis
AI summary Read the abstract
This meta-analysis with phylogenetic control found that microplastic exposure impairs key biological traits of insects, primarily behavior and reproduction, with effects varying by polymer type and particle size. Field evidence confirmed that insects ingest and transfer microplastics along food chains, and also contribute to bio-fragmentation of larger plastic debris into smaller particles.
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.