Received: 13 April 2018 Revised: 24 August 2018 Accepted: 27 August 2018 DOI: 10.1111/conl.12608 LETTER The extirpation of species outside protected areas Elizabeth H. Boakes1 Richard A. Fuller2 Philip J.K. McGowan3 1 Centre for Biodiversity and Environment Abstract Research, University College London, Lon- don, UK Protected areas (PAs) are fundamental to conservation efforts but they are only part 2School of Biological Sciences, University of of a successful conservation strategy. We examine biodiversity outside PAs in Sun- Queensland, Brisbane, Australia daland, one of the world's most biologically degraded regions. Using the avian order 3 School of Natural and Environmental Sci- Galliformes as a case study, we identify species that have not been sighted outside PAs ences, Newcastle University, Newcastle upon Tyne, UK within the last 20 years on each individual landmass (i.e., Malay Peninsula, Borneo, Correspondence Sumatra, Java, and Bali). We estimate these species’ extirpation dates outside PAs Elizabeth Boakes, Centre for Biodiversity and using optimal linear estimation and species’ sighting records. Environment Research, University College London, Gower Street, WC1E 6BT, UK. We conclude there have been up to 13 extirpations of Galliformes from outside PAs Email:
[email protected] in Sundaland. Three Sundaic endemics now occur only inside PAs. Sumatra has suf- Funding information fered the highest proportion of extirpations (50% of its galliform species). Effective Leverhulme Trust, Grant/Award Number: F/07/058/AK management of Sundaland's