Bennie, Jonathan ; Hodgson, Jenny A ; Lawson, CR... Butterfly distribution data were collected by T. Bernhard, P. Budd, A. Daish, M. Edwards, T. Gray, R. Hoyes, B. McBride, J. Poole, H. Silver, T. Yardley, D. Hoare and many volunteers, and are held by UK Butterfly Conservation (www.butterfly-conservation.org). Population monitoring data were sourced from the UK Butterfly Monitoring Scheme (www.ukbms.org), which is operated by the NERC Centre for Ecology & Hydrology and Butterfly Conservation and funded by a consortium of government agencies..
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2013