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Quantification and Characterization of Microplastics in Wildlife Feces: Case Study from Buffer zones of Western Ghats, Tamil Nadu
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Researchers collected fecal samples from wild elephants, sambar deer, gaurs, and rabbits in buffer zones of the Western Ghats, India, finding 127 microplastic particles across 12 samples, demonstrating that wildlife in protected areas are ingesting microplastics from the surrounding environment.
Wildlife is greatly impacted by the presence of microplastics in the environment, which has become a global concern. In order to clarify their possible effects on ecosystem health, this study examines the frequency of microplastics in the feces of wild animals. Indian Elephants (Elephas maximus indicus), sambar Deer (Rusa unicolor), Gaurs (Bos gaurus), and Rabbits (Lepus nigricollis) were the main subjects of this investigation. In Tamil Nadu's Coimbatore district, we gathered wild animal excrement from the buffer zones of the Western Ghats range. Twelve animal feces samples included 127 Micro Plastic Particles (MPs) in total. A trinocular microscope was used for qualitative investigation, which showed that MPs came in a variety of colors and forms. Transparent (46 particles) was the most commonly detected color, followed by white (30), blue (15), red (6), light blue (4), brown (3), and pink (3). Fibers (70), pieces (36), and sheets (21) were among the MP shapes that were detected. To determine the kinds of polymeric components contained in the particles, FT-IR analysis was performed using Origin software. Correlations between the overall number of MPS in various animal samples and their colors and shapes were examined using SPSS software
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Researchers examined feces from 12 wild animal species in western Thailand and found microplastics in over 40% of samples across eight species, including elephants, deer, and wild boar. The amount of microplastics found was linked to human activity near the animals' habitats. This demonstrates that microplastic contamination has reached even terrestrial wildlife in protected areas, entering the food chain far from obvious pollution sources.
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Researchers examined microplastic accumulation in terrestrial wildlife carcasses and fecal samples from protected and non-protected areas of western Thailand, finding contamination in multiple species. The presence of microplastics in wildlife from protected areas highlights the inability of conservation boundaries to shield fauna from pervasive plastic pollution.
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Researchers used non-invasive fecal sampling to document microplastic contamination in Indian elephants, sambar deer, and black-naped hares from the Western Ghats biodiversity hotspot, finding MPs in all species and all sites — with elephants carrying the highest loads and LDPE, HDPE, and polypropylene from packaging waste dominating the polymer profile.
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