BLS Mapping Scheme dataset, 1750-2009
Lichen distribution data at 10km square level, distinguishing records from before and since 1960.
The dataset covers the whole of Britain and Ireland, however surveys have been targetted on particular habitats and geographical areas at different times and the coverage is not complete. The absence of a record does not necessarily imply that the species is absent from that square.
Records are at 10km precision.
To collate data on lichen distributions.
The data included in these maps has been verified by experts in the British Lichen Society. However, it is summary data and further detail and professional advice should be sought before it is used in contentious circumstances.
The dataset has been compiled from field and herbarium records, and verified by specialist review.
No citation information available.
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