On the other hand, some species are gaining ground as climate change makes the UK a more hospitable homeland. Otters, polecats and dragonflies have all seen significant recent boosts.
But what do all of these grand figures and sweeping totals mean for your back garden? However big or small, most people are used to hearing sparrows chirp, leaves rustle and even glimpsing the occasional sign of some of our rarer species, from hedgehogs to butterflies.
You would probably miss even the more unpleasant species – from beetles to spiders – if they were gone. Click on our interactive graphic above to explore how the changes in Britain’s flora and fauna have changed how your garden looks – and to see what it would have been like just a few years ago.