Results 161 to 170 of about 78,130 (182)
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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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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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BIOTROPICA, 2002
ABSTRACTMale euglossine bees were sampled with chemical baits every two months from September 1997 to July 1999 at nine sites in the Desengano mountain range, Rio de Janeiro State, Brazil. Four sites were located in Atlantic Forest mature second growth, two sites in disturbed forest, and three sites in forest fragments of 200, 156, and 14 ha ...
Athayde Tonhasca +2 more
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ABSTRACTMale euglossine bees were sampled with chemical baits every two months from September 1997 to July 1999 at nine sites in the Desengano mountain range, Rio de Janeiro State, Brazil. Four sites were located in Atlantic Forest mature second growth, two sites in disturbed forest, and three sites in forest fragments of 200, 156, and 14 ha ...
Athayde Tonhasca +2 more
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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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EUGLOSSINE BEE POLLINATION OF THE ORCHID, COCHLEANTHES LIPSCOMBIAE: A FOOD SOURCE MIMIC
American Journal of Botany, 1983Cochleanthes lipscombiae is pollinated by large male and female euglossine bees. The flowers lack pollinator rewards, but attract bees searching for nectar. The euglossines extend their long tongues and crawl into the gullet‐flower. The bees probe the back‐swept lateral sepals for nectar.
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Geographic and Seasonal Variation in Fragrance Choices and Preferences of Male Euglossine Bees
Biotropica, 1989Variation in choices and preferences for fragrances are examined for a large portion of the euglossine bee assemblages of Barro Colorado Island (BCI) and Cerro Campana, Panama. Census data were obtained from a year-long baiting program utilizing 16 chemical attractants. Interand intraspecific variation in fragrance choices occurred.
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Long Tongues and Loose Niches: Evolution of Euglossine Bees and Their Nectar Flowers
2005(Uploaded by Plazi for the Bat Literature Project) I examined relationships between tongue length of orchid bees (Apidae: Euglossini) and nectar spur length of their flowers in the genera Calathea, Costus, and Dimerocostus using phylogenetically independent contrasts.
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A REANALYSIS OF DIPLOID MALE FREQUENCIES IN EUGLOSSINE BEES (HYMENOPTERA: APIDAE)
Evolution, 2001N C, Takahashi +3 more
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