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?

Twenty Plume Moth Southern Hawker Hornet Mimic Hoverfly (Volucella zonaria) Lentinellus cochleatus (Aniseed Cockleshell) in Drostre Wood Migrant Hawker Antler Moth Chrysotoxum festivum Argyresthia trifasciata Southern Hawker Hoverfly - Syrphus Southern Hawker Ovipositing Centre Barred Swallow Painted Lady Atristella Moth Four-spotted Chaser Migrant Hawker Migrant Hawkers Black Darter Hairy Dragonfly Beefsteak Fungus in Drostre Wood Southern Hawker Small Pearl-bordered Fritillary Small Blue female Broad-bodied Chaser Large Red Damselfly