Free with an account
Ireland's biodiversity records, on one map.
Search iNaturalist, GBIF and NBN Atlas together for the whole island. Compare species, draw around a site, play through 150 years of records and download what you find.
- 3
- data sources in one search
- 1870–today
- records across the decades
- 32
- counties, north and south
- €0
- for every search tool
Everything you need to explore what's been recorded, and where.
Built by an Irish entomologist for recorders, ecologists, students and anyone curious about the wildlife around them. All of it is free once you sign up.
One search, three databases
Type a scientific or common name and see every record from iNaturalist, GBIF and NBN Atlas together, with duplicates removed.
Compare two species
Map two species side by side in contrasting colours to see where ranges overlap, or where a lookalike has been misrecorded.
Search an area
Draw around a site to list everything recorded there, or narrow it with a kingdom-to-genus filter built from Irish records.
Play through time
Slide from 1870 to today, or press play and watch records arrive decade by decade. Split older and recent records at a glance.
Layers that help
Clustering, heatmaps, satellite imagery and an Irish Grid overlay with 100 km, 10 km and 1 km squares.
Records and charts
Sort every record in a table with Irish Grid references, or chart records by year, month, data provider and location.
Take the data with you
Download records as CSV, or a clean distribution map with county outlines, ready for a report or a talk.
Saved searches
Save any search, including a drawn area and its filters, and come back to it with one click.
Licences you can see
Every record keeps its licence and rights holder, so you know what you can reuse and how to credit it.
Data-quality controls
Choose research-grade iNaturalist only, or strictly verified NBN Atlas records, whenever you need certainty.
Works in the field
The same tools on your phone: search, draw and check records while you're standing on the site.
Made for Ireland
Searches cover the whole island, north and south, with Irish Grid references and a species list built from Irish records.
Create a free account
Sign up with Google or your email address. No card, no trial period.
Search
A species, two species to compare, or an area you draw on the map.
Explore and download
Filter by year and source, switch layers, then save the search or download the records.
Where the records come from
iNaturalist
Photo-based observations from naturalists across Ireland, with research-grade records confirmed by the community.
GBIF
The Global Biodiversity Information Facility, including datasets published by the National Biodiversity Data Centre, museums and recording schemes.
NBN Atlas
Records held by the National Biodiversity Network, with strong coverage in Northern Ireland through CEDaR and local recorders.
bionexus.pro doesn't own any of these records. It brings them together, keeps each record's licence and source link, and points you back to the original.
Start exploring in under a minute.
Every search tool is free. All you need is an account.