Natural England Commissioned Report NECR217 A Provisional Assessment of the Status of Acalyptratae flies in the UK First published 1 December 2016 www.gov.uk/natural -england Foreword Natural England commission a range of reports from external contractors to provide evidence and advice to assist us in delivering our duties. The views in this report are those of the authors and do not necessarily represent those of Natural England. Background Making good decisions to conserve species This report should be cited as: should primarily be based upon an objective process of determining the degree of threat to FALK, S.J., ISMAY, J.W. & CHANDLER, P.J. the survival of a species. The recognised 2016. A Provisional Assessment of the Status of international approach to undertaking this is by Acalyptratae flies in the UK. Natural England assigning the species to one of the IUCN threat Commissioned Reports, Number217. categories. This report was commissioned to update the threat status of the acalypterate fly families. It is based on text originally submitted in 1995, but subsequently updated a number of times, most recently in early 2016. It provides a valuable repository of information on many species and should act as a springboard to further survey and work. Reviews for other invertebrate groups will follow. Natural England Project Manager - David Heaver, Senior Invertebrate Specialist
[email protected] Contractor - John Ismay
[email protected] Keywords - Acalyptratae flies, invertebrates, red list, IUCN, status reviews, IUCN threat categories, GB rarity status Further information This report can be downloaded from the Natural England Access to Evidence Catalogue: http://publications.naturalengland.org.uk/ .