نتایج جستجو برای: varroa mite

تعداد نتایج: 8920  

2016
Maurizio Mazzei Baldassare Fronte Simona Sagona Maria Luisa Carrozza Mario Forzan Federica Pizzurro Carlo Bibbiani Vincenzo Miragliotta Francesca Abramo Francesca Millanta Marco Bagliacca Alessandro Poli Antonio Felicioli

The Western Honeybee is a key pollinator for natural as well as agricultural ecosystems. In the last decade massive honeybee colony losses have been observed worldwide, the result of a complex syndrome triggered by multiple stress factors, with the RNA virus Deformed Wing Virus (DWV) and the mite Varroa destructor playing crucial roles. The mite supports replication of DWV to high titers, which...

1999
LUIS MEDINA MEDINA STEPHEN JOHN MARTIN

The aim of this study was to investigate an underlying mechanism of the apparent tolerance of Africanized honey bees (AHB) to Varroa jacobsoni mites in Mexico. This was achieved by conducting the first detailed study into the mites’ reproductive biology in AHB worker cells. The data was then compared directly with a similar study previously carried out on European honey bees (EHB) in the UK. A ...

Journal: :Journal of Apicultural Research 2021

The importance of natural protected areas for the preservation locally adapted subspecies (or local genotype) honey bees has been recently emphasized in literature. In western Europe, initiatives have emerged to protect native i.e., Western European dark bee, Apis mellifera (Hymenoptera: Apidae). Here, we investigated bee diversity a Mediterranean area, Calanques National Park, near Marseille, ...

1999
JOHN R. HARBO JEFFREY W. HARRIS

This studyuses siblinganalysis tomeasure theheritability inhoneybees,Apismellifera L., of characteristics that have been associated with resistance to the mite, Varroa jacobsoni Oudemans. Twenty-eight uniform colonies of bees were established on 13 May in Baton Rouge, LA, each with 1 kg of mite-infested bees and a queen. The 28 unrelated queens in these colonies were divided into 7 groups of 4 ...

2017
Nora Drescher Alexandra-Maria Klein Peter Neumann Orlando Yañez Sara D. Leonhardt

Social immunity is a key factor for honeybee health, including behavioral defense strategies such as the collective use of antimicrobial plant resins (propolis). While laboratory data repeatedly show significant propolis effects, field data are scarce, especially at the colony level. Here, we investigated whether propolis, as naturally deposited in the nests, can protect honeybees against ectop...

Journal: :Ecological Modelling 2021

• The non-linear DDE model is used to study honeybee-mite population dynamics with seasonality. Mites and age structure can destabilize that leads colony collapse. queen’s egg-laying rate has the greatest effect on size. Seasonality in either promote or suppress survival at different conditions. Honeybees play an important role production of many agricultural crops sustaining plant diversity un...

2017
Sofia Levin David Galbraith Noa Sela Tal Erez Christina M. Grozinger Nor Chejanovsky

The viral ecology of bee communities is complex, where viruses are readily shared among co-foraging bee species. Additionally, in honey bees (Apis mellifera), many viruses are transmitted - and their impacts exacerbated - by the parasitic Varroa destructor mite. Thus far, the viruses found to be shared across bee species and transmitted by V. destructor mites are positive-sense single-stranded ...

2015
Ah-Jin Ahn Kyu-Sung Ahn Jin-Hyeong Noh Young-Ha Kim Mi-Sun Yoo Seung-Won Kang Do-Hyeon Yu Sung Shik Shin

Acarapis mites, including Acarapis woodi, Acarapis externus, and Acarapis dorsalis, are parasites of bees which can cause severe damage to the bee industry by destroying colonies and decreasing honey production. All 3 species are prevalent throughout many countries including UK, USA, Iran, Turkey, China, and Japan. Based on previous reports of Acarapis mites occurring in northeast Asia, includi...

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