Relative Abundance (No. of Adults)

The numbers of adults reported per species over the period 1990-2015 have been sorted to show the relative reported abundances of species.
Relative Distribution (1km Squares)

The number of 1km squares in which each species was reported during 1990-2015 have been sorted to show relative distribution. This doesn't of course imply even distribution of any species - some, such as the chalk-loving species can only be found in the south.


Relative Local Abundance

The numbers of adults reported per species over the period 1990-2015 was divided by the number of records for that species to determine the average number of adults per record. This is a crude measure of local abundance - i.e. how many are seen together.
Relative No. of Records

The number of records for each species submitted during 1990-2015 have been sorted to show which species are more often reported than others.