Now showing items 11-20 of 116
Coexistence of Feral Africanized and European Honey Bees (Hymenoptera: Apoidea: Apidae) on St. Croix Island
(Caribbean Journal of Science, Vol. 44, No. 2, 264-266, 2008, 2014)
Weakness and collapse of bee colonies in Brazil: are there cases of CCD?
(Empresa Brasil Pesq Agropec, 2016-05-01)
In the last decades, the decline of wild bee populations and the collapse of Apis mellifera colonies have concerned researchers and beekeepers. The objective of this review was to compile some of the most relevant studies ...
Is the number of antennal plate organs (sensilla placodea) greater in hygienic than in non-hygienic Africanized honey bees?
Hygienic behavior is a desirable trait in honey bees (Apis mellifera L.), as hygienic bees quickly remove diseased brood, intermpting the infectious cycle. Hygienic lines of honey bees appear to be more sensitive to the ...
Africanized honey bees are efficient at detecting, uncapping and removing dead brood
The hygienic behavior of honey bees is based on a two-step process, including uncapping and removing diseased, dead, damaged, or parasitized brood inside the cell. We evaluated during periods of 1 h the time that hygienic ...
Africanized honey bee (Apis mellifera) venom profiling: Seasonal variation of melittin and phospholipase A(2) levels
(Pergamon-Elsevier B.V. Ltd, 2010-09-01)
Apis mellifera venom is comprised basically of melittin, phospholipase A(2), histamine, hyaluronidase, catecholamine and serotonin. Some of these components have been associated with allergic reactions, amongst several ...
Hygienic behavior of africanized honey bees Apis mellifera directed towards brood in old and new combs during diurnal and nocturnal periods
Hygienic behavior in honey bees, Apis mellifera, is measured by determining the rate at which the bees uncap and remove dead sealed brood. We analyzed individual behavior of house-cleaning Africanized honey bees in order ...
Rapid morphological changes in populations of hybrids between Africanized and European honey bees
(Fundacao de Pesquisas Cientificas de Ribeirao PretoRibeirão Preto, 2013-08-02)
African honey bees, introduced to Brazil in 1956, rapidly dominated the previously introduced European subspecies. To better understand how hybridization between these different types of bees proceeded, we made geometric ...
Effects of Nosema ceranae and thiametoxam in Apis mellifera: A comparative study in Africanized and Carniolan honey bees
Multiple stressors, such as chemicals and pathogens, are likely to be detrimental for the health and lifespan of Apis mellifera, a bee species frequently exposed to both factors in the field and inside hives. The main ...