RT Journal Article SR Electronic T1 The arthropod associates of 155 North American cynipid oak galls JF bioRxiv FD Cold Spring Harbor Laboratory SP 2022.04.26.489445 DO 10.1101/2022.04.26.489445 A1 Anna K.G. Ward A1 Robert W. Busbee A1 Rachel A. Chen A1 Charles K. Davis A1 Amanda L. Driscoe A1 Scott P. Egan A1 Bailey A.R. Goldberg A1 Glen Ray Hood A1 Dylan G. Jones A1 Adam J. Kranz A1 Shannon A. Meadely Dunphy A1 Alyson K. Milks A1 James R. Ott A1 Kirsten M. Prior A1 Sofia I. Sheikh A1 Shihan Shzu A1 Kelly L. Weinersmith A1 Linyi Zhang A1 Y. Miles Zhang A1 Andrew A. Forbes YR 2022 UL http://biorxiv.org/content/early/2022/04/27/2022.04.26.489445.abstract AB The identities of most arthropod associates of cynipid-induced oak galls in the western Palearctic are generally known. However, a comprehensive accounting of associates has been performed for only a small number of the galls induced by the estimated 700 species of cynipid gall wasp in the Nearctic. This gap in knowledge stymies many potential studies of diversity, coevolution, and community ecology, for which oak gall systems are otherwise ideal models. We report rearing records of insects and other arthropods from more than 527,306 individual galls representing 201 different oak gall types collected from 32 oak tree species in North America. Of the 201 gall types collected, 155 produced one or more animals. A total of 151,075 animals were found in association with these 155 gall types, and of these 61,044 (40.4%) were gall wasps while 90,031 (59.6%) were other arthropods. We identified all animals to superfamily, family, or, where possible, to genus. We provide raw numbers and summaries of collections, alongside notes on natural history, ecology, and previously published associations for each taxon. For eight common gall-associated genera (Synergus, Ceroptres, Euceroptres, Ormyrus, Torymus, Eurytoma, Sycophila, and Euderus), we also connect rearing records to gall wasp phylogeny, geography, and ecology - including host tree and gall location (host organ), and their co-occurrence with other insect genera. Though the diversity of gall wasps and the large size of these communities is such that many Nearctic oak gall-associated insects still remain undescribed, this large collection and identification effort should facilitate the testing of new and varied ecological and evolutionary hypotheses in Nearctic oak galls.Competing Interest StatementThe authors have declared no competing interest.