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Roubik, D. 2002. The value of bees to the coffee harvest. Nature. 417, 708.
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Eltz T., D.W. Roubik, and M.W. Whitten. 2003. Fragrances, male display and mating behaviour of Euglossa hemichlora: a flight cage experiment. Physiological Entomology. 28, 251-260.
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Roubik D.W., 1980.Foraging behavior of competing Africanized honeybees and stingless bees. Ecology. 61 (4), 836-845.
Roubik D.W., 1982.Obligate necrophagy in a social bee. Science. 217(4564), 1059-1060.
Roubik D.W., 1982. The ecological impact of nectar-robbing bees and pollinating hummingbirds on a tropical shrub. Ecology. 63 (2), 354-360.
Wolda H., and D.W Roubik., 1986. Nocturnal bee abundance and seasonal bee activity in a Panamanian forest. Ecology. 67 (2), 426-433.
Roubik D.W., J.D. Ackerman, C. Copenhaver, and B.H. Smith. 1982.Stratum, tree, and flower selection by tropical bees: implications for the reproductive biology of outcrossing Cochlopermum vitifolium in Panama. Ecology.63 (3), 712-720.
