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♦ 1THE IMPORTANCE OF SOLITARY BEES ON THE REPRODUCTIVE BIOLOGY OF TIMBER TREES AT THE TAPAJÓS NATIONAL FOREST, BRAZIL, Márcia Motta Maués, Milene Silva de Souza, Milton Kanashiro, Solitary Bees Conservation, Rearing and Management for Pollination, International Workshop on Solitary Bees and Their Role in Pollination, held in Beberibe, Ceará, Brazil, in April 2004, pp. 241-254
♦ 2Ramirez, N., and Y. Brito. 1992.
Pollination Biology in a Palm Swamp Community in the Venezuelan Central Plains. Botanical Journal of the Linnean Society 110:277-302.