Affiliation: | 1 Shirley High School, Shirley Church Road, Croydon CRO 5EF, UK * Birkbeck College, Malet Street, London WC1E 7HX, UK 2 University College London, 20 Gordon Street, London WC1H OAJ, UK 3 English Nature, Roughmoor, Bishops Hull, Taunton. Somerset TA1 5AA, UK 4 42 Acre Street, Stroud, Gloucestershire GL5 1DR, UK 5 ‘Steps’, Charlcombe Lane, Lansdown, Bath, Somerset BA1 8DS, UK |