Most of Guernsey's important habitats are seeing "wide-scale decline", according to new research.
The 2018 Habitat Survey is the third to be carried out in the island.
The data looks at how habitats have changed over the past 20 years, and one expert says the results paint a fairly "bleak picture".
Julia Henney says the decline could be down to invasive species, but the way the areas are managed also plays a vital role.
She is now calling on the government to re-assess its policies, and see how they could be changed to "halt or reverse" the trends.