1 Wildlife Conservation Research Unit, Zoology, University of Oxford Recanati-Kaplan Centre, Tubney OX13 5QL, United Kingdom; hans.bauer@zoo.ox.ac.uk.
2 Grimsö Wildlife Research Station, Department of Ecology, Swedish University of Agricultural Sciences, 73091 Riddarhyttan, Sweden;
3 World Conservation Union, Cat Action Treasury, Cape Neddick, ME 03902;
4 Panthera, New York, NY 10018;
5 Wildlife Conservation Research Unit, Zoology, University of Oxford Recanati-Kaplan Centre, Tubney OX13 5QL, United Kingdom;
6 Department of Integrative Biology, Michigan State University, East Lansing, MI 48824;
7 Wildlife Conservation Research Unit, Zoology, University of Oxford Recanati-Kaplan Centre, Tubney OX13 5QL, United Kingdom; Department of Ecology, Evolution, and Behavior, University of Minnesota, St. Paul, MN 55408.