Important Invertebrate Areas About IIAs Selecting and Mapping IIAs Supporting Invertebrate Conservation IIAs in Planning IIA Landscapes Single Species IIAs Using IIA Maps and Profiles FAQ IIA Data Providers IIA Document Library IIA Shapefiles

Important Invertebrate Areas (IIAs) are the best places in Great Britain for our invertebrates, which have been identified using the most up-to-date data available from over 80 national expert recording schemes. They support some of our rarest and most threatened species, vulnerable habitats and unique assemblages of invertebrates.

As and when new Important Invertebrate Area documents come online they will be added to our IIA Document Library below.