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Microplastics footprint in nature reserves-a case study on the microplastics in the guano from Yancheng Wetland Rare Birds National Nature Reserve, China

文献类型： 外文期刊

作者： Jiang, Huimin 1 ; Cheng, Hai 3 ; Wu, Shiyue 1 ; Li, Hongshan 1 ; Chen, Hao 3 ; Li, Zhenghao 3 ; Yao, Xinyun 1 ; Zhang, Yanan 3 ; Chen, Yaqin 3 ; Chen, Shuyi 1 ; Chen, Shihao 1 ; Zheng, Liang 4 ; Sui, Yanming 1 ; Shao, Rong 1 ;

作者机构： 1.Yancheng Inst Technol, Coll Marine & Biol Engn, Yancheng, Peoples R China

2.East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai, Peoples R China

3.Adm Bur, Yancheng Natl Nat Reserve Rare Birds, Yancheng, Peoples R China

4.Chinese Acad Fishery Sci, East China Sea Fishery Res Inst, Shanghai, Peoples R China

5.Univ Rostock, Inst Biol Sci, Dept Marine Biol, Rostock, Germany

关键词： Plastic pollution; Faecal sample; Protected area; Microplastics; Birds

期刊名称：ENVIRONMENTAL RESEARCH （ 影响因子：7.7； 五年影响因子：7.5 ）

ISSN： 0013-9351

年卷期： 2024 年 256 卷

页码：

收录情况： SCI

摘要： Bio-ingestion of microplastics poses a global threat to ecosystems, yet studies within nature reserves, crucial habitats for birds, remain scarce despite the well-documented ingestion of microplastics by avian species. Located in Jiangsu Province, China, the Yancheng Wetland Rare Birds Nature Reserve is home to diverse bird species, including many rare ones. This study aimed to assess the abundance and characteristics of microplastics in common bird species within the reserve, investigate microplastic enrichment across different species, and establish links between birds' habitat types and microplastic ingestion. Microplastics were extracted from the feces of 110 birds, with 84 particles identified from 37.27% of samples. Among 8 species studied, the average microplastic abundance ranged from 0.97 +/- 0.47 to 43.43 +/- 61.98 items per gram of feces, or 1.5 +/- 0.87 to 3.4 +/- 1.50 items per individual. The Swan goose (Anser cygnoides) exhibited the highest microplastic abundance per gram of feces, while the black-billed gull (Larus saundersi) had the highest abundance per individual. The predominant form of ingested microplastics among birds in the reserve was fibers, with polyethylene being the most common polymer type. Significant variations in plastic exposure were observed among species and between aquatic and terrestrial birds. This study represents the first quantitative assessment of microplastic concentrations in birds within the reserve, filling a crucial gap in research and providing insights for assessing microplastic pollution and guiding bird conservation efforts in aquatic and terrestrial environments.

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