Dave Goulson (born 1965) FRSE FRES is a British biologist, conservationist, and Professor of Biology (Evolution, Behaviour and Environment) at the University of Sussex. Goulson specialises in the ecology and conservation of bumblebees.Goulson's upbringing was in rural Shropshire. He studied Biology at the University of Oxford, and then completed a PhD in butterfly ecology at Oxford Brookes University under the supervision of Denis Owen.Goulson has stated that when he was born in 1965, the British short-haired bumblebee was quite widespread, but he never saw one before they became extinct in the UK, and he described a causal link between World War II and the decline of the bee, due in part to habitat loss and changes in agricultural practices made necessary to increase wartime food production. Wikipedia