Blowflies have sanitary and forensic importance, and different levels of association with human settlements (synanthropy). Therefore, specific diversity changes in each site could be used as an indicator of the anthropic impact. In this study, the community of Calliphoridae in Hudson (Argentina) was sampled in three sites with different degrees of Synanthropy (natural, rural and urban). Flies were attracted with bait and collected with an insect net. Twelve samples were collected in each site and both Simpson and Shannon diversity indexes were calculated. The Natural area was the most diverse. The other two areas showed no significant differences between them. The diversity was higher in the middle of spring and in late summer, and lower at the end of spring and in the beginning of summer. Alterations due to human settlements affect diversity by decreasing the abundance of some species.
Blowfly; community; species diversity; synanthropy; Buenos Aires
