Five community networks (horizontal) are integrated in five categories of coordination effort (vertical) in PESI. Community networks represent the FP4 and FP5 key programs on European taxonomic indexing: Fauna Europaea, ERMS, Euro+Med PlantBase, supplemented by Index Fungorum and AlgaeBase.

 
  Part of: de Jong Y, Kouwenberg J, Boumans L, Hussey C, Hyam R, Nicolson N, Kirk P, Paton A, Michel E, Guiry MD, Boegh PS, Pedersen HÆ, Enghoff H, von Raab-Straube E, Güntsch A, Geoffroy M, Müller A, Kohlbecker A, Berendsohn W, Appeltans W, Arvanitidis C, Vanhoorne B, Declerck J, Vandepitte L, Hernandez F, Nash R, Costello MJ, Ouvrard D, Bezard-Falgas P, Bourgoin T, Wetzel FT, Glöckler F, Korb G, Ring C, Hagedorn G, Häuser C, Aktaç N, Asan A, Ardelean A, Borges PAV, Dhora D, Khachatryan H, Malicky M, Ibrahimov S, Tuzikov A, De Wever A, Moncheva S, Spassov N, Chobot K, Popov A, Boršić I, Sfenthourakis S, Kõljalg U, Uotila P, Gargominy O, Dauvin J-C, Tarkhnishvili D, Chaladze G, Tuerkay M, Legakis A, Peregovits L, Gudmundsson G, Ólafsson E, Lysaght L, Galil BS, Raimondo FM, Domina G, Stoch F, Minelli A, Spungis V, Budrys E, Olenin S, Turpel A, Walisch T, Krpach V, Gambin MT, Ungureanu L, Karaman G, Kleukers RM.J.C, Stur E, Aagaard K, Valland N, Moen TL, Bogdanowicz W, Tykarski P, Węsławski JM, Kędra M, M. de Frias Martins A, Abreu AD, Silva R, Medvedev S, Ryss A, Šimić S, Marhold K, Stloukal E, Tome D, Ramos MA, Valdés B, Pina F, Kullander S, Telenius A, Gonseth Y, Tschudin P, Sergeyeva O, Vladymyrov V, Rizun VB, Raper C, Lear D, Stoev P, Penev L, Rubio AC, Backeljau T, Saarenmaa H, Ulenberg S (2015) PESI - a taxonomic backbone for Europe. Biodiversity Data Journal 3: e5848. https://doi.org/10.3897/BDJ.3.e5848