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Dancing with danger-how honeybees are getting affected in the web of microplastics-a review
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This review summarizes research on how microplastics are affecting honeybees, finding that these particles accumulate in bee tissues including the brain, gut, and breathing tubes. Microplastic exposure can change bee behavior, weaken their immune systems, reduce body weight, and disrupt gut bacteria. Since honeybees pollinate roughly 70% of the food crops humans eat, threats to bee health from microplastics could have far-reaching effects on food security.
Anthropogenic activities have negatively impacted the ecosystem dramatically over the last few decades. The environment is becoming more contaminated with heavy metals, pesticides, and microplastics (MPs) as a result of the swift rise in industrialization and urbanisation. These contaminants are present everywhere in the ecosystem, affecting every living creature, from aquatic to terrestrial to aerial. Recently, the widespread of microplastics in the environment has raised serious concerns about the contamination of honey bees by these tiny particles of plastic. Honeybees are the major pollinators which contributes in the pollination of about 70% food that we consume. This review summarizes current research findings on the presence, uptake, and possible effects of microplastics on honey bees. Findings revealed the presence of microplastics in various honey bee matrices, such as honey, pollen, beeswax, and bee bodies, highlighting the potential routes of exposure for these vital pollinators. Additionally, evidence suggests that microplastics can accumulate in honey bee tissues (brain, midgut, Malpighian tubules, trachea, and haemolymph) potentially leading to adverse effects on honey bee health, behaviour, and colony dynamics. Additionally, MPs has a synergistic impact on immune system as well. Change in cuticle profile, reduction in body weight, and changes in eating frequency can regulate overall success rate of their survival. However, significant knowledge gaps remain regarding the long-term consequences for honey bee populations and ecosystem health, which cannot unveil the ultimate degree of future threats. Future research efforts should focus on investigating the interactions between microplastics and other stressors, such as pesticides and pathogens, and assessing the broader ecological implications of honey bee contamination with microplastics. Addressing these knowledge gaps is essential for developing effective mitigation strategies to minimize the impact of microplastics on honey bee populations and safeguarding their vital role in ecosystem functioning and food security.
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Exploring the risk of microplastics to pollinators: focusing on honey bees
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This review summarizes research on how microplastics affect honey bees, which pollinate about 70% of the food we eat. Microplastics have been found in honey, pollen, beeswax, and bee tissues including the brain and gut, where they can impair behavior, immunity, and gut bacteria. Declining bee populations threaten food production, and microplastic pollution may be one contributing factor.
Microplastics comprehensive review: Impact on honey bee, occurrence in honey and health risk evaluation
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This systematic review examines how microplastics contaminate honey through bees and their environment. The findings show that bees accumulate microplastics from polluted air, water, and soil, which can then end up in honey — a product many people consume for its health benefits.
Honeybees as sentinels of microplastic pollution: a meta-analysis of accumulation, toxicity, and biomonitoring potential
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This review pulled together findings from 139 studies showing that honeybees pick up microplastics (tiny plastic bits) from the environment, and these particles can end up in honey, pollen, and wax, products many people eat or use daily. Because bees fly over large areas and are sensitive to pollution, scientists suggest using them as living "pollution detectors" to track microplastic contamination in the environment, which could also signal risks to the food we eat and the crops bees pollinate. More research is still needed to understand exactly how harmful long-term microplastic exposure is to bees and, by extension, to us.
Microplastics incorporated by honeybees from food are transferred to honey, wax and larvae
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Researchers found that when honeybees consume food contaminated with microplastics, the particles are transferred to honey, beeswax, and developing larvae inside the hive. Chronic exposure did not significantly affect colony growth, but the presence of microplastics in honey means humans may be ingesting them through this food source. This study reveals another pathway by which microplastics can enter the human diet through contaminated bee products.
Microplastics reach the brain and interfere with honey bee cognition
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Researchers found that microplastics reach honey bee brains and impair cognitive function, with bees exposed to mixed polymer combinations showing disrupted learning and memory abilities, demonstrating that plastic pollution poses a direct threat to pollinator health.
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