Artropodes associados as carcaças de pequenos roedores expostas em area de formação vegetal secundaria no municipio de Campinas, SP / Arthropods associated with small rodent carcasses exposed in a secondary wood area in the municipality of Campinas, SP

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

Although studies of the post-mortem fate of human corpses are of forensic interest, and in natural environments large animals become available to insect colonization soon after death, the fate of the vast number of small carcasses in some habitats, as well as the parameters that lead this process, are not objective of important investigations. Due to this situation, decomposition studies of small rodent carcasses were conducted in a secondary wood area within the Campus of Campinas State University - UNlCAMP (22°49 15"S, 47°04 08"W) in the municipality of Campinas (Brazil), fTom August 2003 to June 2004, to analyze the composition of the local carrion visiting and colonizing invertebrate fauna. Four laboratory mouse carcasses (Mus musculus) and four rat carcasses (Rattus norvegicus) were exposed in each season, during the set period. AlI the carcasses were placed in an iron-mesh cage, which was adequate to collect adult and immature insects. In the course of the decomposition of the 32 rodent carcasses, 6514 specimens (820 adults and 5694 immatures) of 53 aqhropod species fTom the families Sarcophagidae, Calliphoridae, Muscidae, Fanniidae, Syrphidae, Richardiidae, Sepsidae, Micropezidae, Otitidae, Drosophilidae, Phoridae, Dolichopodidae, Anthomyiidae, Asilidae and Lauxaniidae (Diptera), Formicidae, Ichneumonidae, Encyrtidae e Apidae (Hymenoptera), Staphylinidae (Coleoptera) and Gonyleptidae (Opiliones) were collected. The most abundant species breeding on the carcasses were Lucilia eximia (Wiedemann, 1819) (Diptera: Calliphoridae) and some Sarcophagidae species, such as Pec/da (pattonella) intermutans (Walker, 1861) and Sarcophaga (Liopygia) ruficomis (Fabricius, 1794), which are rarely seen breeding on carcasses of large animals. This behavior can suggest a specialization of these species in colonizing small carcasses, possibly an attempt to avoid competition with other species of necrophagous Diptera in carcasses of large animals

ASSUNTO(S)

diptera animais - carcaças forensic entomology mice camundongo rattus norvegicus animal carcasses entomologia forense diptera

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