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Bioindicators of the impacts by microplastics in soil: A Systematic Review : a systematic review
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This systematic review identifies organisms that can serve as bioindicators — living warning signs — for microplastic contamination in soil. Certain earthworms, springtails, and other soil creatures show measurable changes when exposed to microplastics, making them useful tools for monitoring pollution levels. Using these natural indicators could help farmers and environmental managers detect microplastic problems before they worsen.
Este estudo apresenta a revisão sistemática da literatura realizada para identificar os principais organismos que podem ser utilizados como bioindicadores dos impactos causados por microplásticos no solo, de forma a subsidiar estratégias de gerenciamento ambiental mais eficazes. A partir de um levantamento inicial nas bases de dados Scopus, ScienceDirect, ResearchGate e Springer, foram identificados inicialmente 738 artigos, dos quais 29 foram selecionados para análise estatística. Os artigos foram classificados quanto à(s) espécie(s) avaliadas, os efeitos observados decorrentes da exposição a microplásticos, além da distribuição espacial e temporal das informações levantadas. Verificou-se que várias espécies podem atuar como importantes bioindicadores da presença e dos impactos dos microplásticos no ambiente terrestre. Entre essas espécies estão os invertebrados Eisenia fetida (minhoca vermelha), Achatina fulica (caramujo-africano), Lumbricus terrestris L. (minhoca), colêmbolos do solo (Folsomia candida), abelhas (Apis mellifera and Apis cerana), insetos (Bombyx mori), Enchytraeus crypticus e o pássaro (Corvus splendens); além de impactos na interação da moscados- fungos (Bradysia difformis) com plantas da espécie leguminosa lentilha (Lens culinaris). Espécies de flora terrestre como Lepidium sativum (agrião), Lolium perene (azevém), Triticum aestivum L. (trigo) e Vicia faba (fava) também foram avaliadas nos estudos revisados. Cabe salientar que, embora este seja um tema que vem avançando rapidamente nos últimos oito anos, mais pesquisas científicas são necessárias para que novas espécies terrestres sejam avaliadas e alcancem a análise em larga escala, uma vez que a grande maioria dos estudos ainda descrevem ensaios em escala de bancada.
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This review explores how earthworms and their associated microbiomes can serve as bioindicators of soil contamination from pollutants including microplastics. Changes in earthworm gut microbial communities can act as early warning signals of soil pollution, and engineered earthworm-microbiome systems show potential for environmental remediation. The study suggests that understanding these biological interactions could lead to new biomonitoring tools for assessing microplastic contamination in terrestrial ecosystems.
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This accessible review explains how different types of soil invertebrates — including earthworms, springtails, and mites — encounter and respond to microplastic contamination in soils. It highlights how these tiny animals, which are vital for nutrient cycling and soil health, are affected by the growing presence of plastic particles in terrestrial ecosystems.
Implication of microplastics on soil faunal communities — identifying gaps of knowledge
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This systematic review examines how microplastics in soil affect earthworms, springtails, mites, and other soil-dwelling creatures that are essential for healthy soil. The impacts are highly variable and depend on the type of plastic, particle size, and soil conditions, making broad conclusions difficult. The review identifies critical knowledge gaps, noting that most studies use unrealistically high microplastic concentrations, and calls for research at levels that match actual field conditions.
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This review summarizes how microplastics in soil harm invertebrates including nematodes, springtails, and earthworms, while some soil animals can fragment or ingest and transport plastic particles. The presence of microplastics in soil disrupts the gut function of soil organisms that play critical roles in maintaining healthy, productive soils.
What do we know about how the terrestrial multicellular soil fauna reacts to microplastic?
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This review analyzed the available literature on how soil-dwelling animals respond to microplastics and found evidence of uptake, bioaccumulation, and harmful effects across many groups including earthworms, springtails, and beetles. Most studies used high concentrations not yet found in real soils, limiting conclusions about current environmental risks.
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