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Long-term ecology of euglossine orchid-bees (Apidae: Euglossini) in Panama
Oecologia, 1987Abundance patterns during 6-7 years and orchid visitation were determined for 51 species of the 57 local euglossine bees. Male bees were counted at 3 chemical attractants presented in the same manner each month. Sites were separated by 75 km but included wet Atlantic forest at 500 m elevation, moist forest at 180 m near Barro Colorado Island, and cloud
D W, Roubik, J D, Ackerman
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Ultrastructural characterization of spermatozoa in euglossine bees (Hymenoptera, Apidae, Apinae)
Insectes Sociaux, 2005Euglossine spermatozoa are the longest described to date for the Hymenoptera. This cell includes a head and a flagellar region. In transverse sections, the acrosome is circular at the tip but has an oval contour along most of its length. The perforatorium penetrates into a deep cavity in the nuclear tip.
U. Zama +4 more
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Population Dynamics of Male Euglossine Bees in Amazonian Forest Fragments
Biotropica, 1987At sites near Manaus, Amazonas, Brazil we measured the impact of forest fragmentation on populations of male euglossine bees. The visitation rates of 15 species of male euglossine bees to three chemical attractants were determined for continuous forest; isolated 1, 10, and 100 ha forest fragments; and a cleared area.
A. Harriett Powell, George V. N. Powell
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Dispersal of euglossine bees between fragments of the Brazilian Atlantic Forest
Journal of Tropical Ecology, 2003The Brazilian Atlantic Forest is one of the world's ‘hot spots’ for conservation because of its high level of endemism and number of endangered species (Myers et al. 2000). After centuries of deforestation, most of the remaining Atlantic Forest is scattered as small fragments on private land (Fonseca 1985, Jorge & Garcia 1997). Pollination could be
Athayde Tonhasca Jr. +2 more
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Specificity and mutual dependency of the orchid-euglossine bee interaction
Biological Journal of the Linnean Society, 1983Seasonal and geographic relationships, and host pollinator specificities are examined for indications of interdependency in the orchid-euglossine bee interaction. The orchids are dependent on the bees for pollination, and their flowering seasonality corresponds well with peak activity of their pollinators.
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Motor patterns of male euglossine bees evoked by floral fragrances
Animal Behaviour, 1971Abstract During pollination of certain orchids, tropical euglossine bees collect fragrant chemical substances from the flower with forelegs, transfer it to the midlegs, and finally to a cavity in the hindleg tibia, as indicated by motion picture analysis. The activities of Eulaema cingulata, E.
William H. Evoy, Brooks P. Jones
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Male Eufriesia purpurata, a DDT-collecting euglossine bee in Brazil
Nature, 1982While studying the ecology of the malaria vector Anopheles (Nyssorhynchus) darlingi Root along the Ituxi River, Amazonas, Brazil, we observed aggregates of bees on the walls of houses that were routinely sprayed with DDT. Several bees collected from DDT-treated house walls in August 1978 were identified as male specimens of Eufriesia purpurata (Moscary)
Donald R. Roberts +4 more
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Journal of Chemical Ecology, 1989
MaleEulaema cingulata (Fabricius) (Apidae: Euglossini) possess large cephalic labial glands that secrete a mixture of lipids. In the process of fragrance collection, males secrete the labial gland lipids onto the substrate. The mixture of lipids and fragrances is then taken up by the front tarsal brushes and transferred to the hind tibial organs.
W M, Whitten, A M, Young, N H, Williams
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MaleEulaema cingulata (Fabricius) (Apidae: Euglossini) possess large cephalic labial glands that secrete a mixture of lipids. In the process of fragrance collection, males secrete the labial gland lipids onto the substrate. The mixture of lipids and fragrances is then taken up by the front tarsal brushes and transferred to the hind tibial organs.
W M, Whitten, A M, Young, N H, Williams
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Flight Distances of Male Euglossine Bees in Orchid Pollination
Biotropica, 1975Male Euglossa imperiialis (Apidae, Euglossini) were marked after capture at cineole, a compound in orchid floral fragrances. Recaptures revealed that a large number of males may be available for pollination of a given orchid and that individual bees may remain at one locality throughout a morning and may be recapturable at that site over a period of ...
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Within-habitat heterogeneity of euglossine bee populations: a re-evaluation of the evidence
Journal of Tropical Ecology, 2002Euglossine bees (Hymenoptera: Apidae: Euglossini) are considered keystone species in the neotropics because of their role as pollinators of several plant species, particularly orchids (Dodson et al.1969, Roubik 1992). Pollination by male euglossine bees occurs when they visit flowers to collect fragrances, which may be used for courtship (Eltz et al ...
Athayde Tonhasca Jr +2 more
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