More than half of the species investigated had traces of plastic in their excrement, according to researchers looking into how much plastic small mammals in England and Wales were exposed to. More than half of the species whose feces were analyzed had evidence of plastic in them, according to res
that the concentrations of plastic excreted were equal to those found in human studies.
Researchers discovered that plastic ingestion was occurring across locations and across different dietary habits, from herbivores, insectivores, and omnivores, contrary to their expectations that samples from urban areas would have higher plastic concentrations and samples from herbivorous species would have lower plastic concentrations.
Over a quarter of the plastics found in the study were also ‘biodegradable’ or bioplastics. The authors warn that while these types of plastics may degrade faster than polymers, they can still be ingested by small mammals and further research is needed to investigate their true biological impacts. Prof. Fiona Mathews adds, “We really need to get a deeper understanding of the implications of plastic ingestion on land mammals – and the potential impacts this has on their conservation status. In our study, droppings from European hedgehogs carried the highest quantity of plastic polymers. As a species, they are already in decline in the UK for reasons that are largely unknown, and they are classified as Vulnerable to Extinction on the IUCN-compliant regional Red List.
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