Rodrigues de Souza André, Bernardes Rodrigo Cupertino, Barbosa Wagner Faria, Viana Thaís Andrade, do Nascimento Fábio Santos, Lima Maria Augusta P, Martins Gustavo Ferreira
Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil.
Departamento de Entomologia, Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais, Brazil.
Environ Sci Pollut Res Int. 2023 Apr;30(20):58527-58535. doi: 10.1007/s11356-023-26695-x. Epub 2023 Mar 29.
Microplastics (MPs) are widespread pollutants of emerging concern, and the risks associated with their ingestion have been reported in many organisms. Terrestrial environments can be contaminated with MPs, and terrestrial organisms, including arthropods, are predisposed to the risk of ingesting MPs. In the current study, the larvae of the paper wasp Polistes satan were fed two different doses (6 mg or 16 mg at once) of polystyrene MPs (1.43 mm maximum length), and the effects of these treatments on immature development and survival till adult emergence were studied. Ingestion of the two doses resulted in mortality due to impaired defecation prior to pupation. The survival of larvae that ingested 16 mg of MPs was significantly lower than that of the control. The ingestion of 16 mg of MPs also reduced the adult emergence (11.4%) in comparison to the control (44.4%). MPs were not transferred from the larvae to the adults that survived. These findings demonstrate that MP ingestion can be detrimental to P. satan, e.g. larval mortality can decrease colony productivity and thus the worker force, and that MPs can potentially affect natural enemies that occur in crops, such as predatory social wasps.
微塑料（MPs）是一类受到新兴关注的广泛存在的污染物，许多生物体内都报告了与其摄入相关的风险。陆地环境会被微塑料污染，包括节肢动物在内的陆地生物都有摄入微塑料的风险。在本研究中，给造纸胡蜂黄星长脚黄蜂的幼虫喂食了两种不同剂量（一次6毫克或16毫克）的聚苯乙烯微塑料（最大长度1.43毫米），并研究了这些处理对其未成熟发育以及直至羽化为成虫的存活率的影响。摄入这两种剂量的微塑料会导致在化蛹前因排便受损而死亡。摄入16毫克微塑料的幼虫存活率显著低于对照组。与对照组（44.4%）相比，摄入16毫克微塑料还降低了成虫羽化率（11.4%）。微塑料没有从存活下来的幼虫转移到成虫体内。这些发现表明，摄入微塑料可能对黄星长脚黄蜂有害，例如幼虫死亡会降低蜂群生产力，进而减少工蜂数量，并且微塑料可能会潜在地影响农作物中出现的天敌，比如捕食性群居黄蜂。
