A schematic diagram of Option 5: Event Core combined with Occurrence Extension and MoF Extension; each occurrence is documented as a “dummy” event in the Event Core. The diagram shows that this format allows storage of both biotic and abiotic measurements in the same DwC-A, but it greatly increases complexity by introducing dummy records into the Event Core.

 
  Part of: De Pooter D, Appeltans W, Bailly N, Bristol S, Deneudt K, Eliezer M, Fujioka E, Giorgetti A, Goldstein P, Lewis M, Lipizer M, Mackay K, Marin M, Moncoiffé G, Nikolopoulou S, Provoost P, Rauch S, Roubicek A, Torres C, van de Putte A, Vandepitte L, Vanhoorne B, Vinci M, Wambiji N, Watts D, Klein Salas E, Hernandez F (2017) Toward a new data standard for combined marine biological and environmental datasets - expanding OBIS beyond species occurrences. Biodiversity Data Journal 5: e10989. https://doi.org/10.3897/BDJ.5.e10989