Results 231 to 240 of about 1,632,755 (285)

Foraging Behavior of Competing Africanized Honeybees and Stingless Bees

Ecology, 1980
The colonizing success and potential influence of immigrant Africanized honeybees in the neotropics depends on their foraging style and competitive ability. Experiments were performed to compare the foraging tactics of this invading species to those of its most abundant competitors, highly social stingless bees of the genera Melipona and Trigona. In an
D. Roubik
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Identification of Africanized honeybees

Journal of Chromatography A, 2005
Gas chromatography and pattern recognition methods were used to develop a potential method for differentiating European honeybees from Africanized honeybees. The test data consisted of 237 gas chromatograms of hydrocarbon extracts obtained from the wax glands, cuticle, and exocrine glands of European and Africanized honeybees.
Barry K. Lavine, Mehul N. Vora
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Biochemical response of the Africanized honeybee exposed to fipronil

Environmental Toxicology and Chemistry, 2016
Abstract   Bees are recognized worldwide for their social, economic, and environmental value. In recent decades they have been seriously threatened by diseases and high levels of pesticide use.
Roat, Thaisa C., Carvalho, Stephan M., Palma, Mário S., Malaspina, Osmar   +3 more
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Taxonomy based on chemical constitution: Differentiation of heavily Africanized honeybees from moderately africanized honeybees

Chemometrics and Intelligent Laboratory Systems, 1990
Abstract Lavine, B.K., Ward, A.J.I., Han Jian Hwa, Smith, R.-K. and Taylor, O.R., 1990. Taxonomy based on chemical constitution: differentiation of heavily Africanized honeybees from moderately Africanized honeybees. Chemometrics and Intelligent Laboratory Systems , 8: 239–243.
Anthony J. I. Ward, Roy-Keith Smith, Orley R. Taylor, Barry K. Lavine, Jian Hwa Han   +4 more
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Proteome and phosphoproteome of Africanized and European honeybee venoms

PROTEOMICS, 2013
Honey bee venom toxins trigger immunological, physiological, and neurological responses within victims. The high occurrence of bee attacks involving potentially fatal toxic and allergic reactions in humans and the prospect of developing novel pharmaceuticals make honey bee venom an attractive target for proteomic studies.
Resende, Virgínia Maria Ferreira, Vasilj, Andrej, Santos, Keity Souza, Palma, Mario Sergio, Shevchenko, Andrej   +4 more
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An improved test for Africanized honeybee mitochondrial DNA

Experientia, 1991
Mitochondrial DNA derived from Apis mellifera scutellata, the ancestor of the Africanized bees of the New World, lacks a BglII restriction site found in other types of honeybee. We present primers allowing amplification of a 485-bp section of the cytochrome b gene containing this site, using the polymerase chain reaction.
S. Koulianos, Y. C. Crozier, Ross H. Crozier   +2 more
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Engorgement and Dispersal of Africanized Honeybee Swarms

Journal of Apicultural Research, 1981
SummaryThe contribution of pre-swarming engorgement by workers to the energetics of long-distance dispersal by swarms of Africanized honeybees was examined, by measuring the volumes and concentrations of nectar from honey sacs of bees from different types of swarms.
Orley R. Taylor, Gard W. Otis, Mark L. Winston   +2 more
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Invasive dynamics of africanized honeybees in North America

Naturwissenschaften, 1992
7. (1984); Pardi, L., Ugolini, A., Faqi, A. S., Scapini, F., Ercolini, A:, in: Behavioral Adaptation to Intertidal Life, p. 79 (G. Chelazzi, M. Vannini, eds.). New York: Plenum 1988 Ercolini, A.: Z. vergl. Physiol. 49, 138 (1964); Pardi, L., Ercolini, A.: Monit. zool. ital. (Suppl.) 74, 80 (1966) Batschelet, E.: Circular Statistics in Biology.
Rowell, G. A., Makela, M. E., Villa, J. D., Matis, J. H., Labougle, J. M., Taylor jr., O. R.   +5 more
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Prevalence of African DNA RELP alleles in neotropical African honeybees

Archives of Insect Biochemistry and Physiology, 1990
AbstractA few queens of the honeybee, Apis mellifera scutellata, were imported from Africa and released in Brazil in 1957. Progeny of these bees have now largely colonized the American tropics. Their imminent arrival in the United States poses a serious threat to the beekeeping industry and to agriculture dependent on honeybee pollination.
H. Glenn Hall, Kasinathan Muralidharan
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Absconding Behaviour of the Africanized Honeybee in South America

Journal of Apicultural Research, 1979
SummaryAbsconding behaviour of the Africanized honeybee in French Guiana, South America, is described. Two types of absconding were recognized: disturbance-induced (i.e., predation, manipulation, etc.) and resource-related or seasonal absconding, probably induced by a dearth of resources during the wet season or by overheating during the dry season. In
Gard W. Otis, Mark L. Winston, Orley R. Taylor   +2 more
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