R Pyle’s research while affiliated with U.S. Fish and Wildlife Service and other places

... The richness and abundance of invertebrate species provide a vast information base to assist in biodiversity conservation and forest reserve management (Pyle et al., 1981;Lewinsohn et al., 2005). Among insects, aculeate wasps (either social, solitary or parasitoids) exhibit great variations in structure, physiology and behaviour and are of special interest for conservation, as they are considered predominant predators in terrestrial ecosystems, as they control the populations of several other organisms (Lasalle and Gauld, 1993;Cirelli and Penteado-Dias, 2003). ...

Reference:

Diversity of wasps (Hymenoptera: Aculeata: Vespidae) along an altitudinal gradient of Atlantic Forest in Itatiaia National Park, Brazil