Peter Brown is an ecologist and senior lecturer in zoology at Anglia Ruskin University in Cambridge. From 2005 to 2008 he worked in the Biological Records Centre at Monks Wood (part of NERC Centre for Ecology and Hydrology), where he was initially employed as project officer for the UK Ladybird Survey. He then had a role in helping to coordinate the data and work of many recording schemes, dealing with the volunteers that collect and collate records of different groups of plants and animals. Peter’s research has focussed on ladybirds and alien species – and in particular the spread and effects of the harlequin ladybird – see www.harlequin-survey.org and www.ladybird-survey.org. With Dr Helen Roy (CEH), Peter jointly leads the UK Ladybird Survey and is very keen on involving both adults and children in ‘citizen science’ projects. With Helen, he has published many papers and various books and guides on ladybirds.