1 William J. Ripple (bill.ripple@oregonstate.edu), Robert L. Beschta, Michael Paul Nelson, Luke Painter Christopher Wolf, and Thomas M. Newsome are affiliated with the Global Trophic Cascades Program of the Department of Forest Ecosystems and Society at Oregon State University, in Corvallis; TMN is also with the Desert Ecology Research Group of the School of Biological Sciences at the University of Sydney, in Australia; the Centre for Integrative Ecology at the School of Life and Environmental Sciences at Deakin University, in Geelong, Australia; and the School of Environmental and Forest Sciences, at the University of Washington, in Seattle. Guillaume Chapron is affiliated with the Department of Ecology at the Swedish University of Agricultural Sciences, in Riddarhyttan. José Vicente López-Bao is with the Research Unit of Biodiversity at Oviedo University, in Mieres, Spain. Sarah M. Durant and Rosie Woodroffe are with the Institute of Zoology at the Zoological Society of London, Regents Park. David W. Macdonald and Amy J. Dickman are with the Wildlife Conservation Research Unit of the Department of Zoology at the University of Oxford and the Recanati-Kaplan Centre, in Abingdon, United Kingdom. Peter A. Lindsey and Luke T. B. Hunter are affiliated with Panthera, in New York. PAL is also affiliated with the Mammal Research Institute of the Department of Zoology and Entomology at the University of Pretoria, in Gauteng, South Africa; and LTBH is also affiliated with the School of Life Sciences at the University of KwaZulu-Natal in Durban, South Africa. Elizabeth L. Bennett, Simon Hedges, and Fiona Maisels are affiliated with the Wildlife Conservation Society, in New York; FM is also with the School of Natural Sciences at the University of Stirling, in the United Kingdom. Holly T. Dublin is affiliated with IUCN Species Survival Commission's African Elephant Specialist Group at the IUCN Eastern and Southern African Regional Office in Nairobi, Kenya. Jeremy T. Bruskotter is affiliated with the School of Environment and Natural Resources at The Ohio State University, in Columbus. Ahimsa Campos-Arceiz is with the School of Geography at the University of Nottingham Malaysia Campus. Richard T. Corlett is affiliated with the Center for Integrative Conservation of the Xishuangbanna Tropical Botanical Garden at the Chinese Academy of Sciences, in Menglun, Yunnan, China. Chris T. Darimont is with the Department of Geography at the University of Victoria and the Raincoast Conservation Foundation, in British Columbia, Canada. Rodolfo Dirzo is affiliated with the Department of Biology at Stanford University, in California. James A. Estes is with the Department of Ecology and Evolutionary Biology at the University of California, in Santa Cruz. Kristoffer T. Everatt, Matt W. Hayward, and Graham I. H. Kerley are affiliated with the Centre for African Conservation Ecology at Nelson Mandela University, in Port Elizabeth, South Africa; MWH is also with the School of Biological Science and the School of Environment, Natural Resources, and Geography at Bangor University, in Gwynedd, United Kingdom, and the Centre for Wildlife Management at the University of Pretoria, in South Africa. Mauro Galetti is affiliated with the Departamento de Ecologia at the Universidade Estadual Paulista, in Rio Claro, Brazil. Varun R. Goswami is with the Wildlife Conservation Society, India Program, in Bangalore, India. Michael Hoffmann is with the International Union for Conservation of Nature (IUCN) Species Survival Commission, in Gland, Switzerland. Mike Letnic is affiliated with the Centre for Ecosystem Science at the University of New South Wales, in Sydney, Australia. Taal Levi is affiliated with the Department of Fisheries and Wildlife at Oregon State University, in Corvallis. John C. Morrison is affiliated with the World Wildlife Fund-US, in Hope, Maine. Robert M. Pringle is affiliated with the Department of Ecology and Evolutionary Biology at Princeton University, in New Jersey. Christopher J. Sandom is with the School of Life Sciences at the University of Sussex, in Brighton, United Kingdom. John Terborgh is affiliated with the Nicholas School of the Environment and Earth Sciences at Duke University, in Durham, North Carolina. Adrian Treves is with the Nelson Institute for Environmental Studies at the University of Wisconsin, in Madison. Blaire Van Valkenburgh is affiliated with the Department of Ecology and Evolutionary Biology at the University of California, Los Angeles. John A. Vucetich is with the School of Forest Resources and Environmental Science at Michigan Technological University, in Houghton. Aaron J. Wirsing is with the School of Environmental and Forest Sciences at the University of Washington, in Seattle. Arian D. Wallach is with the Centre for Compassionate Conservation in the School of Life Sciences at the University of Technology, in Sydney, Australia. Hillary Young is affiliated with the Department of Ecology and Evolutionary Biology at the University of California, Santa Barbara. Li Zhang is affiliated with the Institute of Ecology at the Beijing Normal University, in PR China.