Rodents could influence plant regeneration as both seed predators and dispersers.With the combination of both field and experimental(in cage and semi-natural enclosure)conditions,we tested whether rodents could distinguish intact with weevil-infested acorns or not,and how strategy of rodent predators could be influenced by food abundance and environment,by offering two kinds of Quercus aliena seeds(including intact and weevil-infested acorns)in a subtropical forest of Foping National Reserve in Qinling Mountains,China,during the autumn from 2011 to 2013.The results showed that rodents ate more intact acorns in the field and semi-natural enclosure while they ate more weevil-infested acorns in the cage.While in the field and semi-natural enclosure,more intact acorns were cached by rodents.In addition,rodents strategy could be influenced by relative food abundance.Rodents cached more intact acorns in high food abundance period while they ate both intact and weevil-infested acorns in low food abundance period.Compared with data in field experiment,rodents reduced scatter hoarding in semi-natural enclosure.A surprising finding was that rodents ate more weevil-infested acorns in cages.All these results indicated that rodents could recognize infested acorns and consume certain weevil-infested acorns.This kind of behavior would affect the fates of acorns and insects,and further influence the dispersal and natural regeneration of Q.aliena.