Results 31 to 40 of about 14,562 (200)

Síndrome de envenenamento por 2000 picadas de abelhas africanizadas. Relato de caso Poisoning syndrome due to 2,000 stings of africanized honeybees

open access: yesRevista Brasileira de Terapia Intensiva, 2006
JUSTIFICATIVA E OBJETIVOS: As abelhas empregadas inicialmente na produção melífera eram de origem européia, sendo de baixa produtividade e mansas. Em 1956 foram trazidas espécies africanas com maior capacidade produtiva, porém extremamente agressivas ...
Rita Vianna de Azevedo   +3 more
doaj   +1 more source

An Inventory of Documented Diseases of African Honeybees

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 ...
F.N. Mumoki   +4 more
openaire   +1 more source

Chronic exposure to imidacloprid increases neuronal vulnerability to mitochondrial dysfunction in the bumblebee (Bombus terrestris) [PDF]

open access: yes, 2015
This work was funded jointly by the Biotechnology and Biological Sciences Research Council, the Department for Environment, Food and Rural Affairs, the Natural Environment Research Council, the Scottish Government, and The Wellcome Trust, under the ...
Bollan, Karen A.   +15 more
core   +1 more source

Reproductive Success of an Endangered Plant after Invasive Bees Supplant Native Pollinator Services

open access: yesDiversity, 2021
Arctomecon humilis (dwarf bear poppy) is an endangered gypsophile restricted to the St. George area in southern Utah, USA. Extirpation of the rare oligolectic bee Perdita meconis and decline of other native pollinators within the last 20 years has been ...
Alyson M. DeNittis, Susan E. Meyer
doaj   +1 more source

Comparative pollen foraging of Africanized and European honeybees in a non-agricultural environment [PDF]

open access: yes, 2006
With the advent of the Africanized honeybee, ways to differentiate it from the European honeybee have been greatly sought in attempts to better understand the role of Africanized bees in pollination.
Ruiz, Ruben
core   +1 more source

Africanized honeybees: Biological characteristics, urban nesting behavior and accidents caused in Brazilian cities (Hymenoptera: Apidae)

open access: yes, 2005
In 1956 African honeybee queens (Apis mellifera scutellata) were imported from South Africa and Tanzania to Brazil, as part of a government project to increase Brazilian honey production.
Pereira, Andrigo Monroe   +1 more
core   +3 more sources

Edge detection by landing honeybees: behavioural analysis and model simulations of the underlying mechanism [PDF]

open access: yes, 1997
Kern R, Egelhaaf M, Srinivasan MV. Edge detection by landing honeybees: behavioural analysis and model simulations of the underlying mechanism. Vision Research.
Egelhaaf, M.   +11 more
core   +1 more source

Susceptibility of European and Africanized honeybees (Apis mellifera L) and their hybrids to Varroa jacobsoni Oud

open access: yes, 1996
This study was conducted to determine if European, Africanized, and hybrid honeybees differ in susceptibility to Varroa infestation and to determine if Varroa differentially reproduce on different types of brood. European brood was twice as attractive to
R.E. Page Jr   +3 more
core   +1 more source

Bee species (Hymenoptera: Anthophila) in a Cerrado-Atlantic Forest ecotone: nesting habits related to foraging activity in a degraded forest fragment

open access: yesEntomoBrasilis, 2020
The aim of this paper was to determine the species diversity and frequency of foraging performed by bees in fragment of degraded forest in a Cerrado-Atlantic Forest ecotone area, also considering the nesting habit of each species.
Leandro Pereira Polatto   +1 more
doaj   +1 more source

Varroa destructor in Africanized honey bees in Brazil: genetic and reproductive profile

open access: yesSociobiology, 2022
The mite Varroa destructor is one of the most studied parasites in apiculture, and its genotype variation is a key factor for the severity of infestation in bee colonies.
Lubiane Guimarães Cestaro   +5 more
doaj   +1 more source

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