Aderyn :: Home

Welcome to the Local Environmental Record Centre (LERC) Wales Biodiversity Information and Reporting Database - Aderyn. Aderyn provides access to wildlife sightings and species records collated by the four LERCs, covering the whole of Wales. Members of the public can access non-sensitive records around their home and distribution maps of species. Partners, recorders and planners can be licenced to access high resolution, detailed records to assist decision making and conservation.

What's in my Area?

Ever wondered what species have been seen near your house, school or workplace? This page allows you to find out! Using the map, you can navigate to the location you are interested in, select a 1km grid square, and return a summary of all species for that square (excluding sensitive species).


Distribution Maps

This page allows you to see where LERC Wales holds records for a species or taxon group (eg birds) across Wales? Select a species or an entire taxon group and display a 10km distribution map, then select a 10km square and see a 1km distribution map (excluding sensitive species).



If you are an authorised to access restricted areas of this site, enter your username and password to login. Forgotten your password?

Roe Deer Banded Demoiselle Holly Blue Butterfly Black Darter Chrysotoxum festivum Tricholoma sulphureum (Sulphur Knight) in Drostre Wood Flouced Rustic Moth Scarce Blue-tailed Damselfly White-legged Damselflies Antler Moth Common Blue Butterfly Male Green Tiger Beetle Migrant Hawker Black-tailed Skimmer Beefsteak Fungus in Drostre Wood Common Hawker Banded Demoiselle Hoverfly - Eupeodes Latifasciatus Broad-bodied Chaser Migrant Hawkers Hoverfly - Melangyna Umbellatarum Large Red Damselfly Southern Hawker Ovipositing Small Blue female Hoverfly - Eupeodes