Peer Reviewed Papers

  1. Droissart, V., Lowry II, P.P., Bosser, J, Roberts, D.L., Stevart, T. (in press) Correcting confusion regarding the identity, circumscription and synonymy of Angraecum gracile Thouars (Orchidaceae). Taxon.
  2. Joppa, L.N., Roberts, D.L., Pimm, S.L. (in press) How many species of flowering plants are there? Proceedings of the Royal Society B.
  3. Pimm, S.L., Jenkins, C.N., Joppa, L.N., Roberts, D.L., Russell, G. (in press) How many endangered species remain to be discovered in Brazil? Natureza & Conservacao.
  4. Elphick, C.S., Roberts, D.L., Reed, J.M. (2010) Estimated dates of recent extinctions for North American and Hawaiian birds. Biological Conservation, 143: 617-624. Supplementary Data
  5. Roberts, D.L., Elphick, C.S., Reed, J.M. (2010) Identifying anomalous reports of putatively extinct species and why it matters. Conservation Biology, 24(1): 189-196.
  6. Bell, A.K., Roberts, D.L., Hawkins, J.A., Rudall, P.J., Box, M.S., Bateman, R.M. (2009) Comparative micromorphology of nectiferous and nectarless labellar spurs in selected clades of subtribe Orchidinae (Orchidaceae). Botanical Journal of the Linnean Society, 160, 369-387.
  7. Duffy, K. J., Kingston, N. E., Sayers, B. A., Roberts, D. L., Stout, J. C. (2009) Inferring national and regional declines of rare orchid species using probabilistic models. Conservation Biology, 23(1): 184-195.
  8. Roberts, D.L., Marshall, C.R. (2009) Are higher taxa described earlier or later than expected by chance? Systematics & Biodiversity, 7(3): 243-247.
  9. Schodelbauerova, I., Roberts, D.L. Kindlmann, K. (2009) Size of protected areas is the main determinant of species diversity in orchids. Biological Conservation, 142: 2329-2334.
  10. Vogel, R.M., Hosking, J.R.M, Elphick, C.S., Roberts, D.L., Reed, J.M. (2009) Goodness-of-fit for probability distributions of sightings as species approach extinction. Bulletin of Mathematical Biology, 71: 701-719.
  11. Godfrey, M.H., Roberts, D.L., Godley, B.J. (2008) Taking it as red: an introduction to the theme section on the IUCN Red List of Threatened Species. Endangered Species Research, 6(2): 109-111.
  12. Roberts, D.L., Dixon, K.W. (2008) Orchids. Current Biology, 18 (8): R325-R329. (invited Primer)
  13. Roberts, D.L., Gardiner, L.M., Motes, M. (2008) Vanda longitepela (Orchidaceae): a new species from the Burma. Kew Bulletin, 63 (3): 1-3.
  14. Roberts, D.L., Solow, A.R. (2008) The effect of the Convention on International Trade in Endangered Species on scientific collections. Proceedings of the Royal Society B., 275: 987-989.
  15. Cribb, P., Hermans, J., Roberts, D.L. (2007) Erasanthe (Epidendroideae, Vandeae, Aerangidinae), a new endemic orchid genus from Madagascar. Adansonia, 29 (1): 1-4.
  16. Roberts, D.L. (2007) Effect of knowledge gain on species conservation status. Lankesteriana, 7 (1-2): 181-183.
  17. Roberts, D.L. (2007) Observations on the effect of nectar-robbery on the reproductive success of Aeranthes arachnitis (Orchidaceae). Lankesteriana, 7 (3): 509-514.
  18. Roberts, D.L., Bateman, R.M. (2007) Do ambush predators prefer rewarding or non-rewarding orchid inflorescences? Biological Journal of the Linnean Society, 92, 763-771.
  19. Schodelbauerova, I., Kindlmann, K., Roberts, D.L. (2007) The species-area-energy relationship in the Orchidaceae. Lankesteriana, 7 (1-2): 209-214.
  20. McInerny, G.J., Roberts, D.L., Davy, A.J., Cribb, P.J. (2006) Significance of sighting rate when inferring extinction and threat. Conservation Biology, 20: 562-567.
  21. Robbirt, K.M., Roberts, D.L., Hawkins, J.A. (2006) Comparing IUCN and probabilistic assessments of threat: do IUCN red list criteria conflate rarity and threat? Biodiversity Conservation, 15: 1903-1912.
  22. Roberts, D.L. (2006) Extinct or possibly extinct? Science, 312: 997-998.
  23. Roberts, D.L., Brummitt, N.A. (2006) The influence of geometric constraints on the colonisation, speciation and range expansion of orchids. Proceedings of the XVIIth AETFAT Congress, Addis Ababa, Ethiopia, pp. 361-372.
  24. Roberts, D.L., Kitchener, A.J. (2006) Inferring extinction from biological records: Were we too quick to write off Miss Waldron's Red Colobus Monkey (Piliocolobus badius waldronae)? Biological Conservation, 128: 285-287.
  25. Roberts, D.L., Saltmarsh, A. (2006) How confident are we that a species is extinct? Quantitative inference of extinction from biological records. The Bulletin of the British Ornithologists Club, 126A: 55-58.
  26. Solow, A.R., Kitchener, A.J., Roberts, D.L., Birks, J.D.S. (2006) Rediscovery of the Scottish polecat, Mustela putorius: Survival or reintroduction? Biological Conservation, 128: 574-575.
  27. Solow, A.R., Roberts, D.L. (2006) Museum collections, species distribution, and rarefaction. Diversity & Distributions, 12: 423-424.
  28. Solow, A.R., Roberts, D.L., Robbirt, K.M. (2006) On the Pleistocene extinctions of Alaskan mammoths and horses. Proceedings of the National Academy of Science, 103: 7351-7353.
  29. Cribb, P., Roberts, D., Hermans, J. (2005) Distribution, ecology and threat to selected Madagascan orchids. Selbyana, 26: 125-133.
  30. Gardiner, L.M., Hawkins, J.A., Roberts, D.L. (2005) Species delimitation in Vanda sect. Cristatae Lindl. (Orchidaceae): a morphological approach. Selbyana, 26: 347-353.
  31. Jacquemyn, H., Micheneau, C., Roberts, D.L., Pailler, T. (2005) Elevation gradients of species diversity, breeding system and floral traits of orchid species on Reunion Island. Journal of Biogeography, 32: 1751-1761.
  32. Roberts, D.L. (2005) Aeranthes virginalis (Orchidaceae): a new species of orchid from the Comoro Islands. Kew Bulletin, 60: 139-141.
  33. Roberts, D.L., Moat, J., McInerny, G.J. (2005) What have herbaria ever done for us? The role of herbaria in conservation assessments. Selbyana, 26: 299-303.
  34. Roberts, D.L. Florens, V.F.B., Baider, C. Bosser. J. (2004) Taeniophyllum coxii (Summerh.) Summerh. (Orchidaceae): a new record for Mauritius, Indian Ocean. Kew Bulletin, 59: 493-494.
  35. Roberts, D.L., McGlynn, T.P. (2004) Tetramorium insolens Smith (Hymenoptera: Formicidae): a new record for Mauritius, Indian Ocean. African Entomology, 12: 265-267.
  36. Roberts, D.L., McInerny, G.J. (2003) When is a species extinct? Quantitative inference of threat and extinction from herbarium data. Lankesteriana, 7: 17-20.
  37. Roberts, D.L., Solow, A.R. (2003) When did the Dodo become extinct? Nature, 426: 245.
  38. Solow, A.R., Roberts, D.L. (2003) A nonparametric test for extinction based on a sighting record. Ecology, 84: 1329-1332.
  39. Davies, K.L., Roberts, D.L. Turner, M.P. (2002) Pseudopollen and food-hair diversity in Polystachya Hook. (Orchidaceae). Annals of Botany, 90: 477-484.

Other Publications

  1. Roberts, D.L., Motes, M. (2009) Vanda helvola, probably the most widespread species from the genus Vanda. Orchid Review.
  2. Cribb, P.J., Roberts, D.L. (2008) A new Habenaria from Madagascar. Orchid Review, 195-199.
  3. Motes, M., Roberts, D.L. (2008) Vanda furva: three centuries of confusion. Orchid Digest, Summer Issue.
  4. Roberts, D.L., Motes, M. (2008) Notes on the geographical range of Ascocentrum aurantiacum; new records from Borneo and Sumatra. Orchid Review, 68-71.
  5. Roberts, D.L., Gardiner, L.M., Motes, M. (2007) Vanda flavobrunnea, a new name for V. pumila; and two other enigmatic species from the genus Vanda. Orchid Review, 316-319.
  6. Gardiner, L.M., Emerson, B.C., Roberts, D.L. (2006) Preliminary phylogeny of the South East Asian genus Vanda (Orchidaceae).Proceedings of the 18th World Orchid Conservation, France.
  7. McGough, H.N., Roberts, D.L., Brodie, C., Kowalczyk, J. (2006) CITES and Slipper Orchids - A User's Guide. Royal Botanic Gardens, Kew, United Kingdom.
  8. Roberts, D.L. Bateman, R.M. (2006) When orchids challenge an island race... Part 4: The tropics. Orchid Review, 212-217.
  9. Roberts, D.L., Sayers, B. (2005) Eria sessilifolia (Orchidaceae). Curtis's Botanical Magazine, 22: 38-41.
  10. Roberts, D.L., Wilcock, C.C. (2005) Fragmentation of tropical rainforests and its effect on orchid survival. Proceedings of the 17th World Orchid Conservation, Malaysia. Natural History Publications, Kota Kinabalu.
  11. Cribb, P.J., Roberts, D.L. (2004) Unusual Habenarias and other orchids in unlikely places in Ethiopia. Orchid Review, 112: 231-234.
  12. Groves, M., Roberts, D.L. (2004) Carnivorous Plants. In Marinelli, J. ed. Plant, pp. 424-439, Dorling Kindersley Ltd, London.
  13. Pollard, B.J., Roberts, D.L., Cribb, P.J. (2004) Orchidaceae in The plants of Bali Ngemba Forest Reserve, Cameroon: A conservation checklist. Royal Botanic Gardens, Kew.
  14. Roberts, D.L., Wilcock, C.C. (2004) Orchid flora of Mauritius. Proceedings of the European Orchid Conference, London, UK.
  15. Roberts, D.L. (2003) Pollination Biology: the role of sexual reproduction in orchid conservation. In Dixon, et al. ed. Orchid Conservation, pp. 113-136, Natural History Publications, Kota Kinabalu, Sabah.
  16. Cribb, P.J., Roberts, D.L. (2002). Orchid species at the 17th World Orchid Conference, Shah Alam, April 2002. Orchid Review, 110: 271-275.
  17. Roberts, D. (1999) Endangered Species Feature: Angraecum cadetii in Mauritius. Orchid Conservation News, Issue No. 2.