Development of Varroa jacobsoni in colonies of Apis mellifera capensis and Apis mellifera carnica

Moritz, Robin F. A.; Mautz, D.

doi:10.1051/apido:19900107

Cited by 37 publications

(23 citation statements)

References 10 publications

(12 reference statements)

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“…The variable P larvae explained a density-dependent effect caused by the multiple infestation of the cells [7,12]. The importance of invading mites by drifting and robbing activity has been documented in several reports [16,27,31] [1,10,24,30,33]. In view of the present study, it may be that intra-racial genetic variability could also be responsible for differences among colonies of the same race.…”

Section: Field Methodologysupporting

confidence: 61%

Development of Varroa jacobsoni in colonies of Apis mellifera iberica in a Mediterranean climate

1999

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-Studies on Varroa jacobsoni population dynamics were conducted on 32 full-sized honeybee colonies of the Iberian bee race. The V. jacobsoni population growth followed an exponential model until it reached a collapse phase. In the experimental conditions this happened about 8 months to 1 year after chemical treatment. On average, the weekly intrinsic mite growth rates were very high, the yearly increases in mite population were 209 232-, 5 436-, 942-(with drone baiting) and 3 036-fold. A modelling approach was developed to describe the mite intrinsic growth rate regarding a) an overall range, b) only growth phenomena or c) only decay phenomena. The probability of each mite finding a free larva on which to reproduce, the occurrence of mite immigration, and the mite death rate were the most significant variables to explain the mite intrinsic growth rate during the growth phase. The model had a good fit, R 2 = 0.905, and good predictive performances, R 2 Prediction = 0.896. © Inra/DIB/AGIB/Elscvier, Paris

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Section: Field Methodologysupporting

confidence: 61%

Development of Varroa jacobsoni in colonies of Apis mellifera iberica in a Mediterranean climate

1999

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“…An extremely short duration of the post-capping phase of worker brood was determined in Apis mellifera capensis (Moritz and Hänel, 1984;Moritz and Mautz, 1990) and less pronounced in other African (Moritz, 1985) compared to European races (Le Conte and Cornuet, 1989;Büchler and Drescher, 1990; Schousboe, 1990 (Büchler, 1990). As confirmed by our studies, the differential hygienic behavior of Apis cerana workers results in rather more mites removed from infested worker than from drone brood (Koeniger, 1987;Rath and Drescher, 1990).…”

Section: Introductionmentioning

confidence: 98%

Reproduction of Varroa jacobsoni in colonies of Apis cerana indica under natural and experimental conditions

Tewarson

Singh²,

Engels

1992

Apidologie

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“…Among these traits is the duration of the post-capping stage of brood cells. It has been noticed (Moritz and Hänel, 1984) (Büchler and Drescher, 1990;Moritz and Mautz, 1990). The heritability of the post-capping period in the worker brood was estimated from a sample of 3 honey-bee races (A m carnica, A m scutellata and A m capensis) to be 0.8 (Moritz, 1985), from a sample of 2 races (A m carnica and A m mellifera) and Buckfast strains to be 0.23 (Büchler and Drescher, 1990), and from North-American strain samples to be 0.61 (Harbo, 1992).…”

Section: Introductionmentioning

confidence: 99%

Heritability of the queen brood post-capping stage duration in Apis mellifera mellifera L

Conte¹,

Bruchou

Benhamouda³

et al. 1994

Apidologie

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Summary — The short duration of the post-capping stage of the honey bee is considered as a good trait to select for breeding honey bees resistant to Varroa jacobsoni. One way to operate is to apply this selection to queens, since this character is expressed in the 3 castes. To predict the efficiency of such a selection, we estimated: (1 ) the heritability of this character through daughter-queen to motherqueen regression and intra-class correlation in a population of Apis mellifera mellifera colonies in France; and (2) the regression between daughter-workers to mother-queens. The heritabilities obtained with these methods were 0.31 ± 0.10 and 0.22 ± 0.25 respectively. The worker capped period was positively correlated with the mother-queen period (r= 0.59), suggesting that queen selection could be efficient at obtaining workers with short capping durations. As the reduction of worker capping period can induce a decrease in the Varroa mite populations, selection for short-capping-duration queens to obtain Varroa-resistant strains is discussed.

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Development of Varroa jacobsoni in colonies of Apis mellifera capensis and Apis mellifera carnica

Cited by 37 publications

References 10 publications

Development of Varroa jacobsoni in colonies of Apis mellifera iberica in a Mediterranean climate

Development of Varroa jacobsoni in colonies of Apis mellifera iberica in a Mediterranean climate

Reproduction of Varroa jacobsoni in colonies of Apis cerana indica under natural and experimental conditions

Heritability of the queen brood post-capping stage duration in Apis mellifera mellifera L

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