Data frogs

Data of the 130 anuran species used in this study, including spawning site occurrence of foam nesting, mating system/amplexus, oviposition substrate site, oviposition type, egg capsule consistency, water type, male body mass (in g), combined testes mass (in mg), total sperm length (in µm), sperm head length (in µm), sperm flagellum length (in µm), sperm number (in million), female snout-vent length (in mm), clutch size, and egg diameter (in mm). OD in the references refers to own data.