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Population size and dispersal of Sulcophanaeus leander (Coleoptera: Scarabaeidae) on riverine beaches in the Amazonian region

Dung beetles are a well-defined guild within the family Scarabaeidae, with distinctive morphological, ecological and behavioural characteristics (Halffter & Matthews 1966). Although this group has been extensively studied (Hanski & Cambefort 1991) due in part to the important role they fulfil in ecosystems (Nichols et al. 2008), little information exists regarding population size and the scale of their dispersal abilities, especially in the Neotropical region. Moreover, few studies have been devoted to exploring the population dynamics of dung beetles (Roslin 1999, 2000).