The population status of the endangered Brazilian endemic leaf-cutting ant Atta robusta (Hymenoptera: Formicidae) Original Research Article

The population status of the endemic leaf-cutting ant Atta robusta was assessed using extensive field surveys. In the coastal plain of the state of Rio de Janeiro, we found localized populations of A. robusta, but no evidence of population recruitment. In disturbed habitats, A. robusta is apparently being displaced by Atta sexdens rubropilosa.