The Guardian reports adders, slow worms, water voles, mountain hares, pine martens and red squirrels are among the species experts have warned could be affected, after unexpected changes to the government’s review process that will raise the bar on how rare and under threat an animal needs to be to gain legal safeguards.

The changes, which have not been widely heralded by the government, could benefit property developers and infrastructure projects such as road-building, which currently have to take account of rare species found within the proposed development areas, and sometimes have to be changed or moved as a result.