An Overview on Honeybee Colony Losses in Buenos Aires Province, Argentina

Abstract

Honey bees (Apis mellifera) are essential for the ecosystem, so their loss threatens biodiversity and agriculture. Several factors have been proposed as possible causes of both massive losses and Colony Collapse Disorder. In August 2017 episodes of colony losses were registered in General Alvear, Buenos Aires province. The aim of the present study was to find possible causes of these events. The samples were screened for presence of several pathogens and the determination of maternal lineages was also performed. Seven out of ten colonies were positive for pathogens, but there was no high prevalence of any of them. It will be necessary to carry out a standardization of studies, and delineate boundaries that allow comparing cases in order to discriminate different types of mortality of colonies that occur worldwide.

A Spotlight on the Egyptian Honeybee (Apis mellifera lamarckii)

“…The enzyme acts as an anti-inflammatory by causing hyaluronic acid break down in various tissues, allowing it to enter the tissue. Treatment with hyaluronidase was reported to prevent tumor cells from reaching lymph nodes in T cell lymphoma, and it may have important anticancer effects to stifle tumor growth [ 76 , 77 ]. Recently, Abdel-Monsef and colleagues purified and characterized hyaluronidase enzyme for the first time from Egyptian bee venom homogeneously using DEAE-cellulose and Sephacryl S-300 columns [ 78 , 79 ].…”

Circulación de virus ARN entre diversas especies de polinizadores y no-polinizadores en la Argentina

“…The worldwide decline in honey bees has led to a phenomenon called Colony Collapse Disorder (CCD) or Hive Depopulation Syndrome (CDS). Its possible causes have been discussed by several authors around the world, including Argentina (Maggi et al 2013;Requier et al 2018) García et al 2019). Recent research has shown the presence of some of these viruses in some insect species that cohabit the environment of pollinators.…”

Comportamiento higiénico y grooming, métodos de estudio de varroosis en apiarios de Corrientes

“…La región del Chaco Húmedo se caracteriza por tener en su territorio, un gran porcentaje de poblaciones de abejas africanizadas (Porrini et al 2020). Respecto de la biología de V arroa destructor, sus virosis y su impacto en las abejas melíferas existen antecedentes en otras zonas productoras del país (Maggi et al 2009a(Maggi et al -b, 2010(Maggi et al , 2012a como así también el registro de perdida de colonias de abejas (Garcia et al 2019, Maggi et al 2016, Requier et al 2018.…”