This sheet is used to record the occurrence data derived from (associated to) each sampling event. Each record must link to a sampling event via its eventID. Although redundant in some cases, the abundance/cover of the species should be recorded using "individualCount" and the combination of "organismQuantity"/"organismQuantityType". Presence/absence data can be recorded by setting "occurrenceStatus" to "present" or "absent". Only provide a location for individual occurrences if it is different from the location of the event, otherwise the location gets inherted from the event.