1. Leverhulme Centre for Anthropocene Biodiversity, Department of Biology, University of York, York, UK
2. Department of Life Sciences, Natural History Museum, London, UK
3. School of Biological Sciences, University of East Anglia, Norwich, UK
4. Conservation Science Group, Department of Zoology, University of Cambridge, Cambridge, UK
5. Centre for Conservation Science, RSPB, Bedfordshire, UK