Considering the poor knowledge about the ant fauna of the state of Paraná, Brazil, this study aimed to compare the ant assemblages in three environments (primary forest, reforested area and secondary growth forest) of Mata dos Godoy State Park, municipality of Londrina. This study was carried out between December 2004 and March 2005. Ant collections were made using sardine baits and pitfall traps. We collected 102 ant species belonging to 38 genera of nine subfamilies. Myrmicinae was the richest subfamily (58 spp.) followed by Formicinae (20 spp.), Ponerinae (9 spp.), Ectatomminae, Heteroponerinae, Ecitoninae and Pseudomyrmecinae (3 species each), Dolichoderinae (2 spp.) and Proceratiinae (1 specie). The richest genera were Pheidole Westwood, 1839 and Camponotus Mayr, 1861, respectively with 14 and 11 species. The primary forest showed the highest richness values, number of exclusive species and diversity (92 spp., 20 spp. and H' = 3.51, respectively), followed by the reforestation area (73 spp., 6 spp. and H' = 3.47) and the secondary growth forest (67 spp., 4 spp. and H'= 3.34). The similarity values between the three environments were rather high. In each sample series, the observed richness was between 33 and 53 species and the estimated richness was between 35 and 86 species. The occurrence of seven guilds of ants was defined: omnivore species, specialist predators, generalist predator litter, armyants, vegetation dominant, soil dominant and fungus growers.
Myrmecofauna; richness; guilds
