THOMAS BROOKS,^* ANDREW BALMFORD,^** NEIL BURGESS,^*** JON FJELDSÅ,^**** LOUIS A. HANSEN,^**** JOSLIN MOORE,^***** CARSTEN RAHBEK,^**** PAUL WILLIAMS<sup>******


*</sup>Thomas Brooks (t.brooks@conservation.org) is a postdoctoral research associate in the Zoological Museum, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark, and in the Conservation Biology Group, Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK; he is also the director of biodiversity analysis at the Center for Applied Biodiversity Science, Conservation International, 1919 M Street NW, Suite 600, Washington, DC 20036.
^**Andrew Balmford is a lecturer in the Conservation Biology Group, Department of Zoology, University of Cambridge.
^***Neil Burgess is the technical advisor to the Uluguru Mountains Biodiversity Conservation Project, Wildlife Conservation Society of Tanzania, Pamba House, PO Box 1668, Morogoro, Tanzania.
^****Jon Fjeldså is a professor and the curator of birds, Louis A. Hansen a database manager, and Carsten Rahbek an associate professor in the Zoological Museum, University of Copenhagen.
^*****Joslin Moore is a postdoctoral research associate in the Zoological Museum, University of Copenhagen, and in the Conservation Biology Group, Department of Zoology, University of Cambridge.
^******Paul Williams is a researcher in the Biogeography and Conservation Laboratory, Department of Entomology, Natural History Museum, Cromwell Road, London SW7 5BD, UK.