Arthropod distribution in 12 sites within San Lorenzo Protected Area in Panama (9°16'N, 79°58'W, elevation ca 130 m). Version: 10 May 2012. Lines: Species, identified by their Taxacode, Order, Family and Subfamily (if available). Taxacode: unique code for each taxa. Columns: Total: total abundance for all 12 sites, namely B1, B2, C1, C2, C3, F1, F2, F3, I1, R1, R2, R3. Units: Number of individuals (abundance). Methods: described in Basset, Y., Corbara, B., Barrios, H., Cuénoud, P., Leponce, M., Aberlenc, H.-P., Bail, J., Bito, D., Bridle, J.R., Castaño-Meneses, G., Cizek, L., Cornejo, A., Curletti, G., Delabie, J.H.C., Dejean, A., Didham, R.K., Dufrêne, M., Fagan, L.L., Floren, A., Frame, D.M., Hallé, F., Hardy, O.J., Hernandez, A., Kitching, R.L., Lewinsohn, T.M., Lewis, O.T., Manumbor, M., Medianero, E., Missa, O., Mitchell, A.W., Mogia, M., Novotny, V., Oliveira, E.G. de, Ødegaard, F., Orivel, J., Ozanne, C.M.P., Pascal, O., Pinzón, S., Rapp, M., Ribeiro, S.P., Roisin, Y., Roslin, T., Roubik, D.W., Samaniego, M., Schmidl, J., Sørensen, L.L., Tishechkin, A., Van Osselaer, C. & Winchester, N.N. 2007. IBISCA-Panama, a large-scale study of arthropod beta-diversity and vertical stratification in a lowland rainforest: rationale, description of study sites and field methodology. Bulletin de l'Institut Royal des Sciences Naturelles de Belgique- Entomologie, 77, 39-69. Data collected and analyzed by: Yves Basset; Lukas Cizek; Philippe Cuenoud; Raphael K. Didham; Francois Guilhaumon; Olivier Missa; Vojtech Novotny; Frode Odegaard; Tomas Roslin; Jurgen Schmidl; Alexey K. Tishechkin; Neville N. Winchester; David W. Roubik; Henri-Pierre Aberlenc; Johannes Bail; Hector Barrios; Jonathan R. Bridle; Gabriela Castano-Meneses; Bruno Corbara; Gianfranco Curletti; Wesley Duarte da Rocha; Domir De Bakker; Jacques H. C. Delabie; Alain Dejean; Laura L. Fagan; Andreas Floren; Roger L. Kitching; Enrique Medianero; Scott E. Miller; Evandro Gama de Oliveira; Jerome Orivel; Marc Pollet; Mathieu Rapp; Servio P. Ribeiro; Yves Roisin; Jesper B. Schmidt; Line Sorensen; Maurice Leponce. Contacts: Yves Basset, Smithsonian Tropical Research Institute, Panama City, Republic of Panama, bassety@si.edu & Maurice Leponce, Royal Belgian Institute of Naturals Sciences, Brussels, Belgium, Maurice.Leponce@naturalsciences.be