i do not understand why i would need a third table, or how it would work.
my search for "survey" yielded only a few similar questions, but did not provide many answers so my apologies for re-asking:
Say i was to use your three tables Species, Inspections and Occurences, would the user have to enter an Inspections layout, enter their name, location and date, then switch to an Occurances layout and select their associated Inspection occurance and finally enter the species that they encountered?
If so, i don't understand how that would be implemented as far as selecting their Inspection and I also don't understand if i would have to make a field for each species and then the user would populate it with a 1 or 0 ?