Social Structure of Euglossa cordata Nests (Hymenoptera: Apidae: Euglossini)

Inventário da fauna de Euglossinae (Hymenoptera, Apidae) do baixo sul da Bahia, Brasil

“…Eulaema nigrila e Euglossa cordata foram capturadas durante todo o ano, sendo, contudo, mais abundantes nos meses mais quentes do ano. O período de desenvolvimento de Euglossa cordata é, em médi a, de 46 dias na estação quente e chuvosa e 83 dias na friae seca (GARóFALO 1985;GARóFALO et aI. 1993), enquanto em Eulaema nigrita, varia de 55 a 8 1 e 83 a 118 dias, respectivamente (SANTOS & GARÓFALO 1994).…”

Spatial–Temporal Variation in Orchid Bee Communities (Hymenoptera: Apidae) in Remnants of Arboreal Caatinga in the Chapada Diamantina Region, State of Bahia, Brazil

“…Some euglossine species appear to be favored by anthropogenic impacts, given their ability to nest in man-made structures (Garófalo 1992, Gonzalez & Gaiani 1990) and secondary habitats (Becker et al 1991). Females of some euglossine species use plants adapted to open areas as sources of pollen (Peruquetti et al 1999).…”

Task allocation and interactions among females in Euglossa carolina nests (Hymenoptera, Apidae, Euglossini)

“…Solitary foundation, nesting in preexisting cavities, nest reactivation by successive generations and multifemale nests are characteristics shared by most species of Euglossini with known nest (Zucchi et al, 1969a, b;Garófalo, 1985Garófalo, , 1992Garófalo, 2004, 2009). Euglossa, with 122 described species (Nemésio, 2009), is the only genus of euglossines that presents species with multifemale nests, task allocation and overlapping generations (Garófalo, 1985;Ramírez-Arriaga et al, 1996;Garófalo, 2004, 2009;Cocom Pech et al, 2008) as well as solitary and communal species (Dressler, 1982;Young, 1985;Roberts and Dodson, 1967; Corresponding author: S.C. Augusto, scaugusto@umuarama.ufu.br * Manuscript editor: Stan Schneider Garófalo et.…”

“…Euglossa, with 122 described species (Nemésio, 2009), is the only genus of euglossines that presents species with multifemale nests, task allocation and overlapping generations (Garófalo, 1985;Ramírez-Arriaga et al, 1996;Garófalo, 2004, 2009;Cocom Pech et al, 2008) as well as solitary and communal species (Dressler, 1982;Young, 1985;Roberts and Dodson, 1967; Corresponding author: S.C. Augusto, scaugusto@umuarama.ufu.br * Manuscript editor: Stan Schneider Garófalo et. al., 1998;Soucy et al, 2003;Otero et al, 2008).…”

“…When her daughters emerge, some of them remain in the natal nest and begin to reactivate it, provisioning and ovipositing in new or old cells (Garófalo, 1985(Garófalo, , 1992. Observations of the intranidal behavior of females of E. carolina during nest reactivation have demonstrated that one of them becomes clearly dominant over the others, the mother in matrifilial associations, and one sister in sororal associations (Garófalo, 1985). The dominance behavior is characterized by two components: reproductive, with the dominant female replacing subordinate's eggs (daughters or younger sisters) with her own, and behavioral, with the dominant exhibiting agonistic behavior towards subordinate.…”