Keller Science Action Center, Field Museum of Natural History, Chicago, IL, USA
Nigel C. A. Pitman, Tomomi Suwa, Juliana Philipp, Corine F. Vriesendorp, Abigail Derby Lewis & Sinem Perk
Missouri Botanical Garden, St Louis, MO, USA
Carmen Ulloa Ulloa, James Miller & James Solomon
AMAP, Université de Montpellier, CIRAD, CNRS, INRAE, IRD, Montpellier, France
Pierre Bonnet
INRIA Sophia-Antipolis, ZENITH team, LIRMM – UMR 5506, Montpellier, France
Alexis Joly
Institute for Conservation Research, San Diego Zoo Global, Escondido, CA, USA
Mathias W. Tobler
Botanical Research Institute of Texas, Fort Worth, TX, USA
Jason H. Best
Facultad de Ciencias Forestales, Universidad Nacional Agraria La Molina, La Molina, Peru
John P. Janovec
Liberty Hyde Bailey Hortorium, Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, USA
Kevin C. Nixon
New York Botanical Garden, Bronx, NY, USA
Barbara M. Thiers & Melissa Tulig
School of Life Sciences, Arizona State University, Tempe, AZ, USA
Edward E. Gilbert
Jardim Botânico do Rio de Janeiro, Rio de Janeiro, Brazil
Rafaela Campostrini Forzza & Fabiana Luiza Ranzato Filardi
Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
Geraldo Zimbrão
Royal Botanic Gardens, Kew, Richmond, United Kingdom
Robert Turner
Instituto de Botánica Darwinion, San Isidro, Buenos Aires, Argentina
Fernando O. Zuloaga & Manuel J. Belgrano
Instituto de Limnología ‘Dr. Raúl A. Ringuelet’ (CONICET), Buenos Aires, Argentina
Christian A. Zanotti
Herbaria Basel, Department of Environmental Sciences, University of Basel, Basel, Switzerland
Jurriaan M. de Vos
Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianópolis, Brazil
Eduardo L. Hettwer Giehl
Environmental and Rural Science, University of New England, Armidale, New South Wales, Australia
C. E. Timothy Paine
Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
Rubens Texeira de Queiroz
Escuela de Ciencias Biológicas, Pontificia Universidad Católica del Ecuador, Quito, Ecuador
Katya Romoleroux
Universidade Federal do Recôncavo da Bahia, Bahia, Brazil
Everton Hilo de Souza
N.C.A.P. and T.S. conceived the study. N.C.A.P., T.S., C.U.U., J.M., J.S., J.P., C.F.V., A.D.L., P.B., A.J., M.W.T., J.H.B., J.P.J., K.C.N., B.M.T., M.T., E.E.G., R.C.F., G.Z., F.L.R.F., R.T., F.O.Z., M.J.B., C.A.Z., J.M.d.V., E.L.H.G., C.E.T.P., R.T.d.Q. and K.R. contributed photographic databases. S.P. queried the Flickr database. C.U.U. provided the taxonomic backbone for the analyses. T.S. assembled the master photographic database, standardized the taxonomy of contributed databases and carried out statistical analyses. T.S. supervised the four Field Museum volunteers who assisted in data collection. N.C.A.P. and T.S. wrote the paper. T.S. prepared Fig. 1a. N.C.A.P. prepared Fig. 1b. T.S. prepared the Supplementary Tables. All authors discussed the results and implications of the analyses, commented on the manuscript at all stages and contributed revisions.
