Results 31 to 40 of about 1,632,755 (285)

Comparative pollen preferences by africanized honeybees Apis mellifera L. of two colonies in Pará de Minas, Minas Gerais, Brazil [PDF]

open access: diamondAnais da Academia Brasileira de Ciências, 2010
The aim of this study was to investigate the polliniferous floral sources used by Apis mellifera (L.) (africanized) in an apiary situated in Pará de Minas, Minas Gerais state, and evaluate the pollen prefences among the beehives.
Cynthia Fernandes Pinto da Luz   +3 more
openalex   +2 more sources

Living with the Africanized bee: Sinaloan beekeepers adapt pollination to Africanized bees

open access: yesCalifornia Agriculture, 1996
Africanized honeybees have become well established in Sinaloa, Mexico, which has large-scale agriculture similar to California's. Beekeepers in Sinaloa have adapted their management practices to continue to provide pollination of crops.
F Ratnieks, P Visscher
doaj   +2 more sources

An Inventory of Documented Diseases of African Honeybees [PDF]

open access: yesAfrican Entomology, 2014
Current trends in global honeybee population changes have been linked to drastic declines in honeybee populations caused by complex interactions between pathogens, arthropod pests such as Varroa, pesticides, honeybee stress and habitat loss. Although substantial information exists for this sudden decline in honeybee populations in Europe and North ...
Anne W. T. Muigai   +6 more
openaire   +1 more source

Regulation of Pollen Foraging Activity in <i>Apis mellifera</i> Africanized Honeybees Colonies

open access: gold, 2016
Efficient honey production requires knowledge about the behavior of the workers and the parameters that influence the strength of the colony. In this study, the objective was to analyze the interaction between the foraging behavior of worker honeybees ...
Erica Gomes de Lima   +4 more
openalex   +3 more sources

Genomewide analysis of admixture and adaptation in the Africanized honeybee [PDF]

open access: yesMolecular Ecology, 2017
AbstractGenetic exchange by hybridization or admixture can make an important contribution to evolution, and introgression of favourable alleles can facilitate adaptation to new environments. A small number of honeybees (Apis mellifera) with African ancestry were introduced to Brazil ~60 years ago, which dispersed and hybridized with existing managed ...
Ronald M. Nelson   +4 more
openaire   +5 more sources

Variation in honey bee gut microbial diversity affected by ontogenetic stage, age and geographic location [PDF]

open access: yes, 2015
Social honey bees, Apis mellifera, host a set of distinct microbiota, which is similar across the continents and various honey bee species. Some of these bacteria, such as lactobacilli, have been linked to immunity and defence against pathogens. Pathogen
Bunesova, Vera   +10 more
core   +11 more sources

Range and Frequency of Africanized Honey Bees in California (USA). [PDF]

open access: yesPLoS ONE, 2015
Africanized honey bees entered California in 1994 but few accounts of their northward expansion or their frequency relative to European honey bees have been published. We used mitochondrial markers and morphometric analyses to determine the prevalence of
Yoshiaki Kono, Joshua R Kohn
doaj   +1 more source

Africanized honeybee stings: how to treat them [PDF]

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 2011
INTRODUCTION: In 1956, Africanized honeybees (AHB) migrated from Brazil to other regions of the Western Hemisphere, including South, Central, and North America, except for Canada. Despite being productive, they are highly aggressive and cause fatal accidents.
Almeida, Ricardo Augusto Monteiro de Barros   +9 more
openaire   +7 more sources

The Honeybee Disease American Foulbrood — An African Perspective [PDF]

open access: yesAfrican Entomology, 2011
Sustaining apiculture worldwide has been threatened by bee diseases and unexplained colony losses. African honeybee populations seem healthier and no major losses have been reported despite the presence of all the major pests and diseases. The scattered colonies in the large wild population of the continent might ensure slow pathogen spread and thus ...
Human, Hannelie   +3 more
openaire   +2 more sources

Climatic Limits of Tropical African Honeybees in the Americas [PDF]

open access: yesBee World, 1984
(1984). Climatic Limits of Tropical African Honeybees in the Americas. Bee World: Vol. 65, No. 1, pp. 38-47.
Orley, Taylor R., Jr., Spivak, Marla
openaire   +3 more sources

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