This GIS dataset holds records for Pine marten as stored in the species database held by the National Parks and Wildlife Service. Records stem from a variety of data sources, which can be viewed in the shapefile attribute table. As the records come from different sources, no common methodology was applied. Incidental records are present in this dataset along with records as non-targeted species and as part of dedicated Pine marten surveys. Publication reference for the National Pine marten survey 2007: O’Mahony, D., O’Reilly, C. & Turner, P. (2007) National pine marten survey of Ireland: an assessment of the current distribution of pine marten in the Republic of Ireland. Unpublished report to the Forest Service and National Parks & Wildlife Service. Survey records were supplied to NPWS mainly in MS Excel format, and records were uploaded into the NPWS Species database. Spot-checks of record locations against OSI Discovery series mapping were carried out prior to the upload, and Recorder 6 validation rules applied. The records were then exported from the Species database as a polygon shapefile showing squares, with the side lengths of the squares corresponding to the precision in which the records were provided.