ALAS
http://viceroy.eeb.uconn.edu/ALAS/ALAS.html
“How many arthropod species are there in a tropical rainforest? . . . Systematists use a "find them all" approach . . . Community ecologists, in contrast, use a "sample and estimate" approach. Project ALAS combines both traditions in an assessment of arthropod diversity. "Sample and estimate" methods are used to sample a set of broad "survey taxa," while "find them all" methods are used to sample much more thoroughly a set of smaller "focal taxa." The known focal taxa are then used to calibrate and evaluate and compare the sampling and estimation methods.”