Effects of queen ages on Varroa<i>(Varroa destructor)</i>infestation level in honey bee<i>(Apis mellifera caucasica)</i>colonies and colony performance

Akyol, Ethem; Yeninar, Halil; Karatepe, Mustafa; Karatepe, Bilge; Özkök, Duran

doi:10.4081/ijas.2007.143

Cited by 32 publications

(30 citation statements)

References 5 publications

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“…The brood areas of Mugla and Carniolan genotypes obtained in this study were in agreement with findings of Genç et al (1999), Akyol and Kaftanoğlu (2001) and Arslan et al (2004) (informed as 3055, 2862 and 2702 cm 2 /colony) Average brood area of Caucasian genotype in present study was in accordance with finding of Gençer and Karacaoğlu (2003) and Bayram et al (2003) (informed as 2008 and 1676 cm 2 /colony), and lower than reported by Genç et al (1999) and Akyol et al (2007) (Figure 2). The group means for numbers of combs with bees were found statistically different from each other (P<0.01).…”

Section: Resultssupporting

confidence: 69%

Comparison of Colony Performances of Anatolian, Caucasian and Carniolan Honeybee (Apis MelliferaL.) Genotypes in Temperate Climate Conditions

Akyol

Ünalan

Yeninar

et al. 2014

Italian Journal of Animal Science

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This study was carried out to determine the performances of Mugla and Nigde ecotypes (A. m. anatoliaca), Caucasian (A. m. caucasica) and Carniolan (A. m. carnica) honeybee genotypes in the region of central Anatolia conditions. A total of 40 colonies (each genotype group consisted of 10 colonies) were used in the study. All queens were reared at the same time and in the same apiary and were instrumentally inseminated. The average numbers of combs covered with bees were found to be 11.24±0.59, 9.51±0.42, 8.11±0.31 and 12.38±0.72 per colony respectively; the average brood areas were found to be 2825.0±240.3, 2160.6±176.8, 1701.9±129.7 and 2883.0±104.4 cm 2 per colony respectively; and the average honey yields were found to be 28.60±0.88, 15.40±0.69, 23.40±0.54 and 31.60±1.12 kg per colony in Mugla ecotype, Nigde ecotype, Caucasian and Carniolan genotypes respectively. The mean differences among the genotypes for number of combs with bees, brood area and honey yield were significant (P<0.01). These results showed that the Carniolan genotype had the best performance and Nigde ecotype had the lowest performance in temperate climate conditions. Therefore, productivity of the Nigde ecotype can be increased by a crossbreeding programme with Carniolan and Mugla genotypes.

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Section: Resultssupporting

confidence: 69%

Comparison of Colony Performances of Anatolian, Caucasian and Carniolan Honeybee (Apis MelliferaL.) Genotypes in Temperate Climate Conditions

Akyol

Ünalan

Yeninar

et al. 2014

Italian Journal of Animal Science

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“…The age of a queen and the variation in her reproductive potential are important factors influencing the honey bee life cycle (Tarpy et al ., 2000). Ageing has an impact on the reproductive status of the queen, decreasing her egg‐laying potential (Butler, 1957; Philippe, 1990; Akyol et al ., 2007; 2008) and the quantity and condition of stored sperm (Page and Peng, 2001; Al‐Lawati et al ., 2009). Moreover, honey bee queens undergo physiological changes with age that may affect their pheromone output (Rhodes et al ., 2007), which in many cases reflects their reproductive status.…”

Section: Discussionmentioning

confidence: 99%

“…This effect was similar to that observed following treatment of experimental colonies with fumagillin. Indeed, the high egg‐laying potential of younger queens (Moeller, 1978) has previously been shown to successfully control other brood and adult bee diseases (Rahman, 1992; Akyol et al ., 2007).…”

Section: Discussionmentioning

confidence: 99%

The effect of induced queen replacement on Nosema spp. infection in honey bee (Apis mellifera iberiensis) colonies

Botías¹,

Martín-Hernández²,

Días

et al. 2011

Environmental Microbiology

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Microsporidiosis of adult honeybees caused by Nosema apis and Nosema ceranae is a common worldwide disease with negative impacts on colony strength and productivity. Few options are available to control the disease at present. The role of the queen in bee population renewal and the replacement of bee losses due to Nosema infection is vital to maintain colony homeostasis. Younger queens have a greater egg laying potential and they produce a greater proportion of uninfected newly eclosed bees to compensate for adult bee losses; hence, a field study was performed to determine the effect of induced queen replacement on Nosema infection in honey bee colonies, focusing on colony strength and honey production. In addition, the impact of long-term Nosema infection of a colony on the ovaries and ventriculus of the queen was evaluated. Queen replacement resulted in a remarkable decrease in the rates of Nosema infection, comparable with that induced by fumagillin treatment. However, detrimental effects on the overall colony state were observed due to the combined effects of stressors such as the queenless condition, lack of brood and high infection rates. The ovaries and ventriculi of queens in infected colonies revealed no signs of Nosema infection and there were no lesions in ovarioles or epithelial ventricular cells.

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“…For the first time we could demonstrate that colonies headed by young queens have a significantly higher chance to survive the winter compared to colonies with older queens. A possible reason for this queen-age-effect could be a significantly higher brood and bee production in colonies with young queens accompanied by a lower infestation with varroa mites (Akyol et al, 2007). However, the detailed reasons for the higher vitality of colonies headed by younger queens remain elusive.…”

Section: Reasons For Colony Lossesmentioning

confidence: 99%

The German bee monitoring project: a long term study to understand periodically high winter losses of honey bee colonies

et al. 2010

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Effects of queen ages on Varroa(Varroa destructor)infestation level in honey bee(Apis mellifera caucasica)colonies and colony performance

Cited by 32 publications

References 5 publications

Comparison of Colony Performances of Anatolian, Caucasian and Carniolan Honeybee (Apis MelliferaL.) Genotypes in Temperate Climate Conditions

Comparison of Colony Performances of Anatolian, Caucasian and Carniolan Honeybee (Apis MelliferaL.) Genotypes in Temperate Climate Conditions

The effect of induced queen replacement on Nosema spp. infection in honey bee (Apis mellifera iberiensis) colonies

The German bee monitoring project: a long term study to understand periodically high winter losses of honey bee colonies

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