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Patterns of widespread decline in North American bumble bees
It is shown that the relative abundances of four species have declined by up to 96% and that their surveyed geographic ranges have contracted by 23–87%, some within the last 20 y, although cause and effect remain uncertain. Expand
Israeli Acute Paralysis Virus: Epidemiology, Pathogenesis and Implications for Honey Bee Health
This study shows that IAPV is established as a persistent infection in honey bee populations, likely enabled by both horizontal and vertical transmission pathways, and indicates a novel therapeutic strategy for limiting multiple honey bee viruses simultaneously and reducing colony losses due to viral diseases. Expand
Interspecific geographic distribution and variation of the pathogens Nosema bombi and Crithidia species in United States bumble bee populations.
In a nationwide survey of the US, nearly 10,000 specimens of 36 bumble bee species collected at 284 sites were evaluated for the presence and prevalence of two known Bombus pathogens, the microsporidium Nosema bombi and trypanosomes in the genus Crithidia. Expand
Nosema ceranae Escapes Fumagillin Control in Honey Bees
It was shown that spore production by Nosema ceranae, an emerging microsporidian pathogen in honey bees, increased in response to declining fumagillin concentrations, up to 100% higher than that of infected bees that have not been exposed to fumgeillin. Expand
Occurrence and Distribution of Aphis glycines on Soybeans in Illinois in 2000 and Its Potential Control
By the end of the 2000 season, A. glycines was found in most states in the midwest, and coincidentally, it was reported for the first time in Australia (3). Expand
Gain and loss of multiple functionally related, horizontally transferred genes in the reduced genomes of two microsporidian parasites
Data suggest that a recent common ancestor of E. hellem and E. romaleae assembled a complete metabolic pathway from multiple independent HGT events and that one descendent already is dispensing with much of this new functionality, highlighting the transient nature of transferred genes. Expand
Infectivity and virulence of Nosema ceranae and Nosema apis in commercially available North American honey bees.
Comparisons among studies suggest that the mixed lineages of US honey bees may be less susceptible to N. ceranae infections than are European bees or that the US isolates of the pathogen are less infective and less virulent than European isolates. Expand
Timing of disease-influenced processes in the life cycle of Ostrinia nubilalis infected with Nosema pyrausta
Abstract The timing of events in the life cycle of the European corn borer, Ostrinia nubilalis, can be important in the transmission and spread of the chronic disease caused by the microsporidiumExpand
Interactions Between Nosema pyrausta (Microsporidia: Nosematidae) and Bacillus thuringiensis subsp. kurstaki in the European Corn Borer (Lepidoptera: Pyralidae)
It is suggested that Bt corn will have a direct adverse effect on the survival and continual impact of N. pyrausta as a regulating factor on European corn borer populations. Expand
Microsporidia - Emergent Pathogens in the Global Food Chain.
Strong evidence exists for an increasing prevalence of microsporidiosis in animals and humans, and for sharing of pathogens across hosts and biomes. Expand