Pollen collected and foraging activities of Frieseomelitta varia (Lepeletier) (Hymenoptera: Apidae) in an urban landscape - Aleixo, Kátia Paula; Faria, Letícia Biral de; Garófalo, Carlos Alberto; Imperatriz-Fonseca, Vera Lucia; Silva, Claudia Inês da (Sociobiology, 2013)