Uses deviations from rarefaction curves to detect whether folktale collectors sought out new material (explorers) or revisited known types (exploiters).
Introduces coverage-based methods for fairly comparing cultural diversity across folktale collections of unequal sampling depth.
Applies unseen species models to VOC historical records to estimate the true number of sailors missing from the archive.
Introduces functional attribute diversity — which accounts for similarity between items — and estimates how much goes undetected in incomplete cultural samples.
Examines how standard unseen species estimators break down under sampling without replacement, and how to correct for it.