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Relative frequency (mean ± SE) of dance (round and waggle) events per hive and day of observation detected in Varroa-free and Varroa-infested colonies depending on the type of substrate [uncapped and capped brood (UB and CB); uncapped and capped honey (UH and CH); pollen (P); and a mix between brood, honey, and pollen (BHP)]. ns, P > 0.05; and **P < 0.01.
