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A study from a CESAM’s Researcher highlighted in the national press

A study from a CESAM’s Researcher highlighted in the national press

Around 194 million birds and 29 million mammals can be run over each year on European roads, according to an international team of researchers led by Clara Grilo, from the Centre for Environmental and Marine Studies (CESAM). The results are published in the journal Frontiers in Ecology and Environment.

"We wanted to know the species most affected by roads in Europe and map the areas where roads can be a threat to birds and mammals in Europe. We made a compilation of studies with records of roadkill in Europe and developed models to estimate the number of roadkill of unstudied species and identify which species are vulnerable to local extinction due to roads," says Clara Grilo. 

Rates of hit-and-run vary between different species and researchers explain why.“Birds and mammals with smaller body size and with characteristics that make them more abundant, have a higher number of cases of roadkill. For example, blackbirds and hedgehogs have particularly high rates of being run-over," says co-author Manuela González-Suárez, professor at Reading University, UK. 

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Article reference:

Grilo C, E.Koroleva , R.Andrášik, M Bíl, M.González-Suárez (2020). Roadkill risk and population vulnerability in European birds and mammalsFrontiers in Ecology and Environment. doi:10.1002/fee.2216



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