Study links tapir microplastic levels to intensity of nearby human land use
Researchers sampled lowland tapirs across three Brazilian sites with differing degrees of agricultural development—a Cerrado agricultural mosaic, the largely pristine Pantanal, and an Amazon farm bordering protected forest—to examine how land use affects microplastic exposure in wildlife. The study found that microplastic abundance in tapirs correlated with the degree of human land conversion at each site, with the most disturbed, agriculture-heavy landscape showing the highest levels.
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The findings suggest that microplastic contamination in wildlife may track broader patterns of agricultural expansion and land conversion rather than being limited to urban or coastal areas, according to the researchers' sampling design across a land-use gradient. This could indicate that even remote, biodiverse regions like the Pantanal face emerging plastic pollution risks as nearby farming intensifies, though further data would be needed to confirm causal pathways.
- Lowland tapirs were sampled across three Brazilian biomes with varying land-use intensity: Cerrado, Pantanal and Amazon transition zone.
- The Cerrado site studied is heavily shaped by agriculture, cattle ranching and infrastructure, while the Pantanal site remains comparatively pristine.
- The Amazon site sits on a large soybean farm bordering protected forest, illustrating a working landscape mixing cropland and conservation area.
Source: nature.com — De Almeida Monteiro Melo Ferraz, 2026-11-11
Published there as: “Human land use drives microplastic abundance in terrestrial wildlife”
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