Hindawi Publishing Corporation Psyche Volume 2012, Article ID 690203, 10 pages doi:10.1155/2012/690203 Research Article Use of Plant Resources by Merosargus (Diptera, Stratiomyidae, Sarginae) Larvae JulioC.R.Fontenelle,1 Flavia´ E. C. Viana-Silva,2 and Rogerio´ P. Martins3 1 Laboratorio´ de Pesquisas Ambientais, Coordenadoria de Meio Ambiente, Instituto Federal Minas Gerais (IFMG), Ouro Preto, MG 35400-000, Brazil 2 Conservac¸ao˜ e Manejo da Vida Silvestre, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil 3 Departamento de Biologia, Universidade Federal do Ceara´ (UFC), Fortaleza, CE, Brazil Correspondence should be addressed to Julio C. R. Fontenelle,
[email protected] Received 7 August 2012; Revised 26 September 2012; Accepted 26 September 2012 Academic Editor: Kleber Del-Claro Copyright © 2012 Julio C. R. Fontenelle et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The genus Merosargus (Loew) has 142 described species. This great diversity in the genus could be explained by larvae resource-use specialization. However, information on larval habitats is still very scarce. In Merosargus species, adult males defend oviposition sites, and this territorial behavior may lead to interspecific competition and make even more important the specialization and niche partitioning to prevent competitive exclusion. This study identified substrate types used as a resource by Merosargus larvae and investigated the degree of specialization and overlap in resource use by different species at an Atlantic forest remnant in Minas Gerais, Brazil. Every potential resource, especially those with adults in the vicinity, was collected opportunistically from October 2001 to October 2004.