Nosema ceranae in South American Native Stingless Bees and Social Wasp
The detection of the microsporidium Nosema ceranae, a relatively new parasite of honey bees, in stingless bees (Meliponini) and the social wasp Polybia scutellaris (Vespidae) samples from Argentina and Brazil are communicated to improve the current knowledge about pathologies that can infect or, at least, be vectored by native wild pollinators from South America.
Population genetic structure and body shape assessment of Pagrus pagrus (Linnaeus, 1758) (Perciformes: Sparidae) from the Buenos Aires coast of the Argentine Sea
The northern and southern areas of the Buenos Aires coast did not yield significant genetic differences either with the control region or the microsatellite loci, revealing that P. pagrus is not genetically structured.
Infectivity and virulence of Nosema ceranae (Microsporidia) isolates obtained from various Apis mellifera morphotypes
The studies showed that Nosema infection and survival varied among the different ages post emergence of workers, and both increased as the honey bee aged, which could be related to the immune response of bees of different ages or to changes in the composition and succession of the intestinal microbiota throughout its ontogeny.
Effects of Synthetic Acaricides and Nosema ceranae (Microsporidia: Nosematidae) on Molecules Associated with Chemical Communication and Recognition in Honey Bees
Testing the effect of amitraz, coumaphos, tau-fluvalinate and flumethrin, commonly applied to treat varroosis, on honey bee survival time, rate of food consumption, CHC profiles and EO production suggests that worker honey bees exposed to those highly ubiquitous drugs are hardly differentiated by nest-mates.
First molecular detection of Apis mellifera filamentous virus (AmFV) in honey bees (Apis mellifera) in Argentina
A high prevalence of Apis mellifera filamentous virus is described in Argentinian apiaries, and a retrospective survey of archived honey bee samples revealed that AmFV has been present in Argentina since at least 2006, the first report involving AmFFV in South America.
Southern limit of Africanized honey bees in Argentina inferred by mtDNA and wing geometric morphometric analysis
The results confirmed the existence of Africanized honey bee populations with a gradual cline from north to south, as a result from recent A. scutellata-derived bee expansion.
Biotic Stressors Affecting Key Apiaries in Argentina
In this context, several researchers have been focused on under-exploring the mechanisms behind honey bee colony losses through honey bee decline and honey bee mortality.
Sub-lethal effects of the consumption of Eupatorium buniifolium essential oil in honeybees
The results show that the ingestion of an essential oil can impact CHC and that the effect is dose-dependent, the first report of changes in honeybee cuticular hydrocarbons as a result of essential oil ingestion.
Current genetic diversity of managed and commercially produced Apis mellifera colonies in Argentina inferred by wing geometric morphometrics and COI-COII mtDNA locus
Current genetic diversity in Argentina is wide and comprises mainly seven subspecies belonging to four evolutionary lineages, which probably results from both historical and current importation events, transhumance, and exchange of queens between regions lacking strong geographical barriers.