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Honeybee Production and Marketing Systems, Constraints - IPMS ...

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2. LITERATURE REVIEW2.1 Origin <strong>and</strong> Evolution of Bees <strong>and</strong> BeekeepingBees likely evolved from wasp like ancestors, contemporaneously with the angiosperm plantstowards the end of cretaceous period, 60 to100 million years ago (Martin, 1976). According toDietz (1986) the present bee fauna probably originated more than 70 million years ago.Currently, eleven families of bees are generally recognized, only some of which are identified byderived traits setting them apart from other bee families. There are about 1000 genus (<strong>and</strong> subgenus), combined with sub genera, approximately 600 generic groups <strong>and</strong> an estimated 20,000living species of bees residing in the world’s museums (Roubik, 1989).Bees (Apoidea) are a super family of about 20,000 species, in the order Hymenoptera. Themajority of bee species are ‘solitary’ while the minorities are social (bumble bees <strong>and</strong> stinglessbees), <strong>and</strong> only a few species of social bees, are kept in hives by beekeepers.There are three families of social bees, which produce honey. These are: the Bombidae,Meliponidae <strong>and</strong> Apidae (Smith, 1960). The Bombidae are found mainly in temperate climates.Their nests are very small, often in the ground <strong>and</strong> are of no commercial importance except aspollinators of certain plants. The Meliponidae, or stingless bees, occur throughout the tropicalregions of the world. Their nesting places may be holes in the ground, in hollow trees or smallcavities in walls <strong>and</strong> on the underside of branches. The family Apidae, to which the honeybeebelongs, is indigenous only to Europe, Africa <strong>and</strong> Asia (FAO, 1986; Crane, 1990).A honeybee found in East Africa was reported from the upper Pleistocene period, 100, 000 yearsago (Bischoff, 1960 cited by Dietz, 1986). This bee could not be differentiated from thecontemporary African honeybee species (Dietz, 1986).Beekeeping, which is today practiced over a greater area of the earth’s surface than perhaps anyother single branch of agriculture, passed through different stages of development: honey5

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