Latitudinal gradient data

The data presented in the following two sheets ("Coenagrion puella" and "Pyrrhosoma nymphula") relate to individuals of <em>Coenagrion puella</em> and <em>Pyrrhosoma nymphula</em> that were collected in 2007 at a variety of sites across the UK. Details of methods, etc, can be found in the linked publication. Also, all specimens have been preserved in 95% ethanol since the project and can be accessed if somebody is interested in the population genetics of the system.