“…Some of the studies were made to obtain information on the nesting biology (KROMBEIN 1967, STRICKLER et al 1996, PEREIRA et al 1999, MORATO et al 1999, JESUS & GARÓFALO 2000, AGUIAR & GARÓFALO 2004, ZILLIKENS & STEINER 2004, whereas other provide information on population dynamics (JAYASINGH & FREEMAN 1980), preferred habitats (FRANKIE et al 1988, GATHMANN et al 1994, reproductive biology of parasites which hosts nest in trap-nests (SCOTT et al 2000, GAZOLA & GARÓFALO 2003 and composition and seasonal patterns of communities (CAMILLO et al 1995, GARÓFALO 2000, AGUIAR & MARTINS, 2002ALVES-DOS-SANTOS 2003). More recently, trap-nesting bees and wasps have been used in researches designed to evaluate the habitat quality (FRANKIE et al 1998, TSCHARNTKE et al 1998, the effects of habitat fragmentation and of the landscape complexity on community composition and predator-prey interactions (MORATO & CAMPOS 2000, MORATO 2001, STEFFAN-DEWENTER 2002, KRUESS & TSCHARNTKE 2002 asil.…”