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Evaluation of motor changes and toxicity of insecticides Fipronil and imidacloprid in Africanized Honey bees (Hymenoptera: Apidae)
(2017-03-01)
Honey bees are important pollinators and are essential in beekeeping. Honey bees get exposed to systemic pesticides while foraging in contaminated fields, and it is important to know the toxicity (LD50) and evaluate the ...
Effect of Protein Supplementation in the Bee Apis mellifera L. Exposed to the Agrochemical Fipronil
(2021-09-01)
Inadequate quantity and quality of proteins in honey bee diet can cause weakening of their colonies and damage their resistance to agrochemical contamination, such as fipronil, which is highly toxic to bees. Thus, we tested ...
Extremely frequent bee visits increase pollen deposition but reduce drupelet set in raspberry
(Wiley, 2014-12)
1. Production of many flowering crops often benefits from elevated pollinator diversity and abundance. Nevertheless, the opposite relationship may arise if bees impair fruit or seed production and/or quality by damaging ...
Similitudes y diferencias en el nicho realizado de dos poblaciones alopátricas de una abeja solitaria bajo variabilidad ambientalSimilarities and differences in the realized niche of two allopatric populations of a solitary bee under environmental variability
(EDP Sciences, 2020-03)
We studied the realized niche of two distant allopatric wool-carder bee populations (bee-plant interaction and reproductive biology in weather variability). In one population, we analyzed the direct and indirect effects ...
Losses of Brazilian bees: an overview of factors that may affect these pollinators
(Julius Kuhn-inst, 2012-01-01)
The Neotropical region to which Brazil belongs, has a great and rich diversity of natives bees, up to a total of 3.000 species including the allochtone genus Apis that by natural crossing among European and African races ...
Ecological impact on native bees by the invasive africanized honey bee
(Universidad Nacional de Colombia, Facultad de Ciencias, Departamento de Biología, 2009)
ABSTRACTVery little effort has been made to investigate bee population dynamics among intact wilderness areas. The presence of newly-arrived feral Africanized honey bee (AHB), Apis mellifera (Apidae), populations was studied ...
Ultrastructure and histochemistry of the mineral concretions in the midgut of bees (Hymenoptera: Apidae)
(E J Brill, 1997-01-01)
Mineral concretions in the digestive cells of bees were examined under transmission electron microscope and histochemically. Ultrastructure shows two types of mineral deposits: 1) mineral concretions which are organized ...
Cytoplasmic protrusions from digestive cells of bees
(Faculty Press, 1996-01-01)
Midgut cells from the honey bee, Apis mellifera, and the stingless bees Scaptotrigona postica and Melipona quadrifasciata anthidioides were examined ultrastructurally and histochemically. Several types of protrusions were ...
Ultrastructure and histochemistry of the mineral concretions in the midgut of bees (Hymenoptera: Apidae)
(E J Brill, 1997-01-01)
Mineral concretions in the digestive cells of bees were examined under transmission electron microscope and histochemically. Ultrastructure shows two types of mineral deposits: 1) mineral concretions which are organized ...