Apidologie

https://www.apidologie.org/

List of Papers (Total 1,272)

Population genetic structure of coastal Croatian honeybees (Apis mellifera carnica)

The genetic structure and molecular diversity of Croatian honeybee coastal populations have been investigated with microsatellite and mitochondrial markers. According to sequence data of the mitochondrial tRNAleu-cox2 intergenic region, all analysed samples belong to the Central Mediterranean and Southeast European evolutionary C-lineage. Four mitochondrial haplotypes have been...

Behavioral changes mediated by hunger in honeybees infected with Nosema ceranae

The microsporidian Nosema is a common honeybee pathogen which enters the adult bee orally and multiplies in its gut, imposing a metabolic demand on its host. The newly discovered Nosema ceranae, given its relatively new association with the European honeybee, is likely to be particularly severe in this regard. We therefore hypothesized that N. ceranae exerts a significant effect...

Heat shock proteins and cell death in situ localisation in hypopharyngeal glands of honeybee (Apis mellifera carnica) workers after imidacloprid or coumaphos treatment

Worker honeybees (Apis mellifera carnica Polm.) were treated with imidacloprid or coumaphos. Significant effects of treatment and treatment duration were found on hypopharyngeal glands (HPG) acinus diameter (P < 0.05). Differences in the size of acini were evident in all long term (48 h and 72 h) treatments. Short term (24 h) imidacloprid treatment induced heat shock protein 70...

Can fatty acids and oxytetracycline protect artificially raised larvae from developing European foulbrood?

A quantitative assay for the transmission of European foulbrood (EFB) in artificially raised larvae was developed. This assay was used to determine the concentration of oxytetracycline (OTC) required to prevent larvae from developing EFB and whether 8 fatty acids (undecanoic, lauric [dodecanoic], myristic, myristoleic, ricinoleic, ricinelaidic, homo-y-linolenic and 13,16,19...

Coordinated responses to honey bee decline in the USA

In response to successive years of high honey bee mortality, the United States Congress mandated the US Department of Agriculture (USDA) to increase funding for research and education directed at reducing honey bee decline. The funding follows two administrative streams within USDA – one through the USDA Agricultural Research Service (ARS) and another through the USDA National...

Research strategies to improve honeybee health in Europe

Understanding the fundaments of colony losses and improving the status of colony health will require cross-cutting research initiatives including honeybee pathology, chemistry, genetics and apicultural extension. The 7th framework of the European Union requested research to empirically and experimentally fill knowledge gaps on honeybee pests and diseases, including ’Colony...

Caste-specific cuticular lipids in the stingless bee Friesella schrottkyi

While a queen control pheromone complex that inhibits worker ovary development has been described for honey bees, no comparable control pheromones have been identified for their sister group, the stingless bees. The aim of the present work was to search for possible control pheromones in the stingless bee Friesella schrottkyi. No volatile substances were found in the heads of...