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Academic literature on the topic 'Hygienic behaviour;honeybee;Apis mellifera'
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Journal articles on the topic "Hygienic behaviour;honeybee;Apis mellifera"
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Le Conte, Y., Z. Y. Huang, M. Roux, Z. J. Zeng, J. P. Christidès, and A. G. Bagnères. "Varroa destructor changes its cuticular hydrocarbons to mimic new hosts." Biology Letters 11, no. 6 (June 2015): 20150233. http://dx.doi.org/10.1098/rsbl.2015.0233.
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Varroa destructor ( Vd ) is a honeybee ectoparasite. Its original host is the Asian honeybee, Apis cerana , but it has also become a severe, global threat to the European honeybee, Apis mellifera . Previous studies have shown that Varroa can mimic a host's cuticular hydrocarbons (HC), enabling the parasite to escape the hygienic behaviour of the host honeybees. By transferring mites between the two honeybee species, we further demonstrate that Vd is able to mimic the cuticular HC of a novel host species when artificially transferred to this new host. Mites originally from A. cerana are more efficient than mites from A. mellifera in mimicking HC of both A. cerana and A. mellifera . This remarkable adaptability may explain their relatively recent host-shift from A. cerana to A. mellifera .
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Panasiuk, Beata, Małgorzata Bieńkowska, Dariusz Gerula, and Paweł Węgrzynowicz. "Susceptibility of Bee Larvae to Chalkbrood in Relation to Hygienic Behaviour of Worker Bees in Colonies of Chosen Races of Honeybee (Apis Mellifera )." Journal of Apicultural Science 58, no. 1 (June 1, 2014): 119–26. http://dx.doi.org/10.2478/jas-2014-0012.
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Abstract The susceptibility of bee larvae to Ascosphaera apis infestation and the hygienic behaviour of worker bees in relation to A. apis infected and freeze-killed brood were evaluated in three races of bees: Apis mellifera carnica, Apis mellifera caucasica, and Apis mellifera mellifera. Experimental bee colonies were evaluated in field conditions during the three beekeeping seasons. The lowest percentage of infected larvae was observed in car GR1 and mel A colonies (8.5% and 15%, respectively) and the highest in car Mr and cau P colonies (21% and 24.3%, respectively). Bees in the car GR1 and mel A colonies removed mummified brood in a shorter period of time (6.5 and 7.1 days on average, respectively) than car Mr and cau P colonies (above 8 days). Bees in the mel A and car GR1 colonies cleaned significantly more cells with freeze-killed brood within 24 and 48 hours (above 70% and 80% on average, respectively) than car Mr and cau P colonies (on average 10 - 20% lower cleaning rate). A low correlation coefficient was found for the susceptibility of larvae to A. apis infection and hygienic behaviour.
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Al Toufailia, Hasan, Sophie E. F. Evison, William O. H. Hughes, and Francis L. W. Ratnieks. "Both hygienic and non-hygienic honeybee, Apis mellifera , colonies remove dead and diseased larvae from open brood cells." Philosophical Transactions of the Royal Society B: Biological Sciences 373, no. 1751 (June 4, 2018): 20170201. http://dx.doi.org/10.1098/rstb.2017.0201.
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Hygienic behaviour is a group defence in which dead or diseased individuals are excluded. In the honeybee, Apis mellifera , hygienic behaviour refers to uncapping and removing dead and diseased larvae and pupae from sealed brood cells. We quantified removal of freeze-killed and chalkbrood-infected larvae from open cells in 20 colonies. We also measured removal of freeze-killed brood from sealed cells. Study colonies ranged from non-hygienic to fully hygienic (52–100% removal within 2 days). All larvae killed in open cells were removed. This shows that all colonies, including those with low hygienic behaviour against dead brood in sealed cells, are highly hygienic against dead brood in open cells and suggests that low hygienic behaviour against dead brood in sealed cells is a trait in its own right. This may also contribute to understanding why hygienic behaviour is uncommon in A. mellifera , which is puzzling as it reduces several diseases without detrimental effects. In particular, the result provides indirect support for the hypothesis that there are two adaptive peaks conferring disease resistance: (i) high hygienic behaviour: diseased brood are removed quickly, in some cases before becoming infective; (ii) low hygienic behaviour: diseased brood remain isolated within sealed cells. This article is part of the Theo Murphy meeting issue ‘Evolution of pathogen and parasite avoidance behaviours'.
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Nganso, Beatrice T., Ayuka T. Fombong, Abdullahi A. Yusuf, Christian W. W. Pirk, Charles Stuhl, and Baldwyn Torto. "Low fertility, fecundity and numbers of mated female offspring explain the lower reproductive success of the parasitic mite Varroa destructor in African honeybees." Parasitology 145, no. 12 (April 17, 2018): 1633–39. http://dx.doi.org/10.1017/s0031182018000616.
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AbstractAlthough Varroa destructor is the most serious ecto-parasite to the honeybee, Apis mellifera L., some honeybee populations such as Apis mellifera scutellata in Kenya can survive mite infestations without treatment. Previously, we reported that grooming behaviour could be a potential tolerant mechanism expressed by this honeybee subspecies towards mite infestation. However, both hygienic and grooming behaviours could not explain the lower mite-infestation levels recorded in these colonies. Here, we investigated the involvement of other potential resistant mechanisms including suppression of mite reproduction in worker brood cells of A. m. scutellata to explain the low mite numbers in their colonies. High infertility rates (26–27%) and percentages of unmated female offspring (39–58%) as well as low fecundity (1.7–2.2, average offspring produced) were identified as key parameters that seem to interact with one another during different seasons to suppress mite reproduction in A. m. scutellata colonies. We also identified offspring mortality in both sexes and absence of male offspring as key factors accounting for the low numbers of mated daughter mites produced in A. m. scutellata colonies. These results suggest that reduced mite reproductive success could explain the slow mite population growth in A. m. scutellata colonies.
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Scannapieco, Alejandra C., Silvia B. Lanzavecchia, María A. Parreño, María C. Liendo, Jorge L. Cladera, Marla Spivak, and María A. Palacio. "Individual precocity, temporal persistence, and task-specialization of hygienic bees from selected colonies of Apis mellifera." Journal of Apicultural Science 60, no. 1 (June 1, 2016): 63–74. http://dx.doi.org/10.1515/jas-2016-0006.
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Abstract Hygienic behaviour is a complex trait that gives Apis mellifera L. resistance against brood diseases. Variability in the expression of hygienic behaviour is evidenced at the colony-level and is explained by the proportion and propensity of individual worker bees that engage in hygienic activities. We investigated the temporal performance and the dynamics of task-specialisation of individual bees over time, both in selected hygienic (H) and non-hygienic (NH) colonies. Then we evaluated the impact of these behavioural aspects on the colony performance. Bees that perform hygienic behaviour (hygienic bees) in our H colonies were more persistent in the hygienic activities throughout the days of the investigation. Such bees were more efficient in the removal of pin-killed brood than hygienic bees in the NH colonies. Hygienic bees in the H colonies were also specialist in the sub-tasks involved in the detection of odour stimulus from dead brood and continued to perform these activities throughout the days of the investigation (temporal persistence). Age-distribution of hygienic bees in the H colonies was asymmetrical, with a larger proportion of these bees performing hygienic activities early in life. At a colony-level, H showed higher efficiency compared to the NH colonies. The present results highlight the fact that individual behaviour may influence the collective dynamics of the hygienic behaviour in honeybee colonies. The results also note that the selection for highly hygienic colonies would result in changes in individual bees that improve the performance of the behaviour at the colony level. The relevance of task-partitioning and age-specialisation of hygienic bees on social immunity is discussed.
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Gerula, Dariusz, Paweł Węgrzynowicz, Beata Panasiuk, Małgorzata Bieńkowska, and Wojciech Skowronek. "Hygienic Behaviour of Honeybee Colonies with Different Levels of Polyandry and Genotypic Composition." Journal of Apicultural Science 59, no. 2 (December 1, 2015): 107–13. http://dx.doi.org/10.1515/jas-2015-0020.
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Abstract Honey bee queens were inseminated with diluted, homogenised semen collected from a few dozen drones. This procedure was carried out to increase the diversity of the queens’ offspring, which is in comparison to the offspring of queens inseminated with semen from only a few drones coming from one colony. Queens and drones were mated within carniolan bee (Apis mellifera carnica) subspecies, but 3 selected lines were used. Queens were reared from one line and drones from the same line, and two additional lines differing in hygienic behaviour wherein in one of them that trait was strongly evident. The aim of this study was to examine whether the level of enhanced genetic variability in colonies and simultaneously the participation of hygienic bees, would increase the performance of hygienic behaviour. Overall hygienic behaviour of colonies with a lower and greater genetic variability did not differ significantly and amounted to 52.1 and 47.0%, respectively. Colonies within the lower variability group, in which drones from line selected in hygienic behaviour performance were used for inseminating queens, had a significantly greater percent of cleaned pupae than other colonies (63.2%). Hygienic behaviour in other colonies was more dependent on the gene quotas of hygienic bees in the colonies rather than on the level of polyandry.
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Maucourt, Ségolène, Frédéric Fortin, Claude Robert, and Pierre Giovenazzo. "Genetic Progress Achieved during 10 Years of Selective Breeding for Honeybee Traits of Interest to the Beekeeping Industry." Agriculture 11, no. 6 (June 10, 2021): 535. http://dx.doi.org/10.3390/agriculture11060535.
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Genetic improvement programs have resulted in spectacular productivity gains for most animal species in recent years. The introduction of quantitative genetics and the use of statistical models have played a fundamental role in achieving these advances. For the honeybee (Apis mellifera), genetic improvement programs are still rare worldwide. Indeed, genetic and reproductive characteristics are more complex in honeybees than in other animal species, which presents additional challenges for access genetic selection. In recent years, advances in informatics have allowed statistical modelling of the honeybee, notably with the BLUP-animal model, and access to genetic selection for this species is possible now. The aim of this project was to present the genetic progress of several traits of interest to the Canadian beekeeping industry (hygienic behavior, honey production and spring development) achieved in our selection program since 2010. Our results show an improvement of 0.30% per year for hygienic behavior, 0.63 kg per year for honey production and 164 brood cells per year for spring development. These advances have opened a new era for our breeding program and sharing this superior genetic available to beekeepers will contribute to the sustainability and self-sufficiency of the beekeeping industry in Canada.
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Le Conte, Y., C. Alaux, J.-F. Martin, J. R. Harbo, J. W. Harris, C. Dantec, D. Séverac, S. Cros-Arteil, and M. Navajas. "Social immunity in honeybees (Apis mellifera): transcriptome analysis of varroa-hygienic behaviour." Insect Molecular Biology 20, no. 3 (March 24, 2011): 399–408. http://dx.doi.org/10.1111/j.1365-2583.2011.01074.x.
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Arathi, H. S., and M. Spivak. "Influence of colony genotypic composition on the performance of hygienic behaviour in the honeybee, Apis mellifera L." Animal Behaviour 62, no. 1 (July 2001): 57–66. http://dx.doi.org/10.1006/anbe.2000.1731.
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Pernal, Stephen F., Asheber Sewalem, and Andony P. Melathopoulos. "Breeding for hygienic behaviour in honeybees (Apis mellifera) using free-mated nucleus colonies." Apidologie 43, no. 4 (December 2, 2011): 403–16. http://dx.doi.org/10.1007/s13592-011-0105-x.
Full textDissertations / Theses on the topic "Hygienic behaviour;honeybee;Apis mellifera"
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Lapidge, Keryn Lea. "Breeding of Hygienic Disease Resistant Bees." University of Sydney. Biological Sciences, 2002. http://hdl.handle.net/2123/810.
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Hygienic behaviour in the honeybee (Apis mellifera) has been shown to be an effective control mechanism against brood diseases such as chalkbrood and AFB. Chalkbrood has proven to be problematic for the Australian honey industry since it was identified here in 1993. Hygienic behaviour is a much studied trait. Rothenbuhler investigated the genetic basis of hygienic behaviour, proposing a two-gene model to explain the uncapping and removal of dead brood. His elegant experiment remains the textbook example of a behavioural genetic study. Although this model has been challenged, it is still generally agreed that a small number of unlinked genes produce a large effect on hygienic behaviour, that hygienic alleles are recessive and are inherited in a Mendelian manner. Experimental backcross colonies were produced from an inbred hygienic line and an inbred non-hygienic line, both provided by Dr. Marla Spivak, University of Minnesota. These backcross colonies were assessed for hygienic behaviour using a standard assay. Statistical analyses of the field data indicated that the genetic basis of the trait was more complex than either the simple Mendelian and widely accepted two-gene or three-gene models that have been proposed previously. Molecular techniques, linkage mapping and QTL analysis then were employed to determine how many loci directly influence hygienic behaviour and the relative level of influence and location of each locus within the genome of A. mellifera. Full multipoint linkage analysis by Mapmaker v3.0 software produced a new genetic map of the honeybee comprised of 358 marker loci ordered over 25 linkage groups spanning a total distance of 3406.2 cM. The average distance between each marker was 9.5 cM. QTL analysis of the experimental data identified seven putative genetic markers associated with hygienic behaviour. QTLs located on linkage groups 2, 4, 6 and 22 were detected for both overall hygienic behaviour and uncapping behaviour only. Individually, each QTL is of relatively small effect with each explaining only 9% � 15% of the variance in hygienic levels observed. Collectively, the putative QTLs identified here explain 79.4% of the observed variance in the expression of hygienic behaviour. These results indicate that there are many genes of low to moderate effect rather than few genes of large effect involved in this complex behavioural trait. This is typical of inherited quantitative traits which do not exhibit Mendelian phenotypic ratios. DNA extracted from the brood samples taken during testing of commercial stock, and from individual bees identified as either highly hygienic or non-hygienic in a reciprocal backcross experiment, were screened with the candidate markers associated with putative QTLs to test their diagnostic power. Unfortunately, none have produced reliably diagnostic DNA profiles. As we have now shown that hygienic behaviour is a polygenic, quantitative trait, simple diagnostic markers for Rothenbuhler's 'uncapping' and 'removal' genes are unlikely to be achieved. Our results show that the most likely way to improve disease resistance in Australian stock is via traditional methods of recurrent selection. The project was responsible for the importation of new genetic material into Australia from the United States. This hygienic stock has been well received by industry, has been widely disseminated, and incorporated into local breeding programs. We hope that it has lead to a general improvement in the level of disease resistance in Australian commercial bees.
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Higginson, Andrew D. "Effects of wing damage on the behaviour of the honeybee Apis mellifera." Thesis, University of Nottingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423653.
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Ferneyhough, Benjamin. "Olfactory learning, its development and changing role in honeybee (Apis mellifera) behaviour." Thesis, Oxford Brookes University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322182.
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Amssalu, Argaw Bezabeh. "Multivariate morphometric analysis and behaviour of honeybees (Apis Mellifera L.) in the southern regions of Ethiopia." Thesis, Rhodes University, 2003. http://hdl.handle.net/10962/d1003130.
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Morphometric and behavioural characteristics of honeybees, Apis mellifera were analysed using multivariate and bivariate statistical methods to characterise honeybees of southern Ethiopian region. A total of 33800 morphometric character measurements were taken from 2600 individual worker honeybees of 130 honeybee colonies collected at 26 sampling localities with an average inter-locality distance of 89km to determine the occurrence of morphoclusters. 117 experienced farmer beekeepers and beekeeping experts were interviewed on pre-tested questionnaire to investigate the behavioural characteristics of these honeybees in their respective areas. Morphometric characters associated with pigmentation and body size exhibited a higher discriminant power while forewing venation angles (B4, N23 and 026) lack discriminatory power to segregate honeybees in the southern Ethiopian region. Principal components and discriminant analyses using the most discriminatory morphological characters delineated four statistically distinct morphoclusters in the southern Ethiopian region: the smallest and yellow honeybees, A. m. woyi-gambella which are different from all African honeybees, occur in the western and southern lowlands; the small and yellowiest honeybees, Apis mellifera jemenitica in the eastern escarpment; the largest and darkest honeybees, Apis mellifera bandasii in the central and eastern highlands; and dark honeybees, Apis mellifera scutellata in the wet tropical forests. High intracolonial and intercolonial variances within and between the boundaries of the honeybee groups were detected. The former suggests areas of ecological instability, while the latter areas of transitional or natural hybridisation zones. These areas are characterised by transitional ecological zones having intermediate climate and physiography. Even though honeybees of the southern Ethiopian region are generally dark and small, they show a high tendency to reproductive swarming, migration and aggressiveness, great variation in pigmentation, size and behaviour were observed both within and between the groups. A. m. jemenitica honeybees have a high propensity to migration and less a tendency for reproductive swarming. A. m. bandasii and A. m. scutellata have a high inclination to reproductive swarming and the former has a lesser and the later intermediate propensity to migration. A. m. woyi-gambella honeybees have intermediate swarming and migration tendencies. These results revealed that reproductive swarming and migration are higher in resource-rich and resource-poor areas respectively. Honey plants of the central highlands of Ethiopia are predominantly herbaceous in nature and mainly grow on open and cultivated lands. The bulk of pollen collected came comparatively from few genera. Strong correlation was observed between the intensities of flowering and rainfall. Reproductive swarming and migration occur during high and low intensity of flowering respectively.
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Schlenstedt, Jana, Sabine Balfanz, Arnd Baumann, and Wolfgang Blenau. "Am5-HT7 : molecular and pharmacological characterization of the first serotonin receptor of the honeybee (Apis mellifera)." Universität Potsdam, 2006. http://opus.kobv.de/ubp/texte_eingeschraenkt_verlag/2010/4442/.
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The biogenic amine serotonin (5-HT) plays a key role in the regulation and modulation of many physiological and behavioural processes in both vertebrates and invertebrates. These functions are mediated through the binding of serotonin to its receptors, of which 13 subtypes have been characterized in vertebrates. We have isolated a cDNA from the honeybee Apis mellifera (Am5-ht7) sharing high similarity to members of the 5-HT7 receptor family. Expression of the Am5-HT7 receptor in HEK293 cells results in an increase in basal cAMP levels, suggesting that Am5-HT7 is expressed as a constitutively active receptor. Serotonin application to Am5-ht7-transfected cells elevates cyclic adenosine 3',5'-monophosphate (cAMP) levels in a dose-dependent manner (EC50 = 1.1-1.8 nM). The Am5-HT7 receptor is also activated by 5-carboxamidotryptamine, whereas methiothepin acts as an inverse agonist. Receptor expression has been investigated by RT-PCR, in situ hybridization, and western blotting experiments. Receptor mRNA is expressed in the perikarya of various brain neuropils, including intrinsic mushroom body neurons, and in peripheral organs. This study marks the first comprehensive characterization of a serotonin receptor in the honeybee and should facilitate further analysis of the role(s) of the receptor in mediating the various central and peripheral effects of 5-HT.
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Vergoz, Vanina, and n/a. "Effects of queen mandibular pheromone on locomotor behaviour and learning in worker honey bees Apis mellifera." University of Otago. Department of Zoology, 2008. http://adt.otago.ac.nz./public/adt-NZDU20081121.161845.
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In a honey bee colony, the queen uses queen mandibular pheromone (QMP) to induce young worker bees to feed and groom her. Among its many behavioural and physiological effects, QMP reduces dopamine levels in the brains of young worker bees. Dopamine is a biogenic monoamine involved in numerous functions including motor control and aversive learning. This study investigates the effects of QMP on motor activities and aversive learning behaviour and the potential link between QMP and dopamine levels in the brain of young bees.
In young bees under the age of 15-days, QMP dramatically reduced locomotor activity and inhibited aversive learning behaviour. Interestingly in older bees these behaviours were not affected by pheromone. Treating young bees with the dopamine precursor, L-dopa (3.25 [mu]g/mI), partially rescued the levels of locomotor activity in QMP-treated bees, and reduced QMP�s effects on aversive learning. This suggests that blocking effects of QMP on both locomotor activity and aversive learning result at least in part from QMP-induced changes in brain dopamine levels.
Two components of the QMP blend, 4-hydroxy-3-methoxyphenylethanol (HVA) and methyl p-hydroxybenzoate (HOB) were examined more closely. Both HVA and HOB are structurally similar to dopamine. HVA was found to mimic the effects of the full QMP blend on aversive learning. Treating bees with HVA reduced aversive learning in young bees. In contrast, treatment with HOB did not affect learning ability. This strongly suggests that HVA is one of the key components that mediates the actions of QMP on aversive learning.
The final section of this thesis investigates why it might be advantageous to honey bee queens to block aversive learning and reduce locomotor activity in young worker bees. The study reveals age-related differences in behaviours that individual worker bees display towards QMP. Young bees reared with QMP or collected from a queenright hive showed attraction to QMP. Conversely, older bees displayed avoidance behaviour towards QMP. By blocking the establishment of aversive memories, young bees may be prevented from forming an association between QMP and any unpleasant side effects induced by this pheromone. This may confer significant benefit to the queen by increasing the likelihood of young workers remaining in her attendance.
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Merti, Admassu Addi. "Botanical inventory and phenology in relation to foraging behaviour of the Cape honeybees (Apis Mellifera Capensis) at a site in the Eastern Cape, South Africa." Thesis, Rhodes University, 2003. http://eprints.ru.ac.za/26/.
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Padilha, Alessandro Haiduck. "Parâmetros genéticos para características produtivas e comportamentais em abelhas africanizadas Apis mellifera via abordagem bayesiana." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/30462.
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O objetivo desse estudo foi estimar parâmetros genéticos para características produtivas e comportamentais em uma população de abelhas Apis mellifera africanizadas por meio de inferência Bayesiana. Os dados foram submetidos a análises uni e bicaracterística utilizando o programa MTGSAM. Os modelos consideraram os efeitos (fixos) de local do apiário, mês-ano ou estação-ano e o número de caixilhos com abelhas aderentes como covariável linear. As estimativas de herdabilidade apresentaram magnitudes de moderada a alta para comportamento higiênico (0,81 ± 0,17), produção de própolis (0,83 ± 0,16), produção de mel (0,37 ± 0,22) e taxa de coleta de xarope (0,39 ± 0,22) e magnitude baixa para a percentagem de ácaros em abelhas adultas (0,12 ± 0,13). A rapidez de coleta de xarope apresentou correlação genética de 0,21 ± 0,51 com produção de mel, de 0,45 ± 0,33 com produção de própolis, e de 0,05 ± 0,43 com comportamento higiênico. As correlações genéticas entre produção de mel, produção de própolis e comportamento higiênico foram de 0,20 ± 0,43, de -0,11 ± 0,41 e de 0,23 ± 0,31, respectivamente. As correlações genéticas foram negativas entre percentagem de ácaros em abelhas adultas e as características produção de mel (-0,63 ± 0,39), produção de própolis (-0,07 ± 0,50), comportamento higiênico (-0,19 ± 0,51) e rapidez de coleta de xarope (- 0,41 ± 0,51). As características produção de mel, produção de própolis e comportamento higiênico apresentam potencial para seleção genética. A menor percentagem de ácaros em abelhas adultas está relacionado a maior produção de mel e maior comportamento higiênico, mas não deve ser usado como único critério de seleção devido a baixa herdabilidade. A seleção de abelhas que coletam xarope mais rapidamente, prevendo maior produção de mel, promoverá pequeno ganho genético. Ao selecionar abelhas que produzem mais própolis haverá pequenos ganhos genéticos para comportamento higiênico ou maior produção de mel.This study was carried out to estimate genetic parameters for productive and behavioural traits in Africanized honey bees Apis mellifera. The data were submitted uni and bicharacter analysis using the software MTGSAM. The fixed effects considered in the models were localization of the hive, month-year or season-year and number of frames covered with bees as covariate. The heritability estimates were moderate to high for hygienic behaviour (0,81 ± 0,17), propolis production (0,83 ± 0,16), honey production (0,37 ± 0,22) and syrup-collection rate (0,39 ± 0,22) and lower for percentage of mites on adult bees (0,12 ± 0,13). Syrup-collection rate showed genetic correlation values of 0,21 ± 0,51 with honey production, 0,45 ± 0,33 with propolis production and 0,05 ± 0,43 with hygienic behaviour. Genetic correlation between honey and propolis was 0,20 ± 0,43, between honey production and hygienic behaviour was -0,11 ± 0,41 and between propolis production and hygienic behaviour was 0,23 ± 0,31. Genetic correlations were negative between percentage of mites on adult bees and other traits honey production (-0,63 ± 0,39), propolis production (-0,07 ± 0,50), hygienic behaviour (-0,19 ± 0,51) and syrup-collection rate. Honey production, propolis production and hygienic behavior traits have potential for genetic selection. The lower percentage of mites on adult bees increase honey production or hygienic behaviour, but it is not recommended as the only criterion for selection, due to its low heritability. Selection for syrupcollection rate will promote small genetic gain for honey production. Propolis production is positively correlated to hygienic behaviour or honey production.
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Santos, Joyce de Fgueiró. "A importância dos mecanismos comportamentais de resistência para a dinâmica populacional de abelhas Apis mellifera e o parasita Varroa destructor." reponame:Repositório Institucional do FGV, 2014. http://hdl.handle.net/10438/11876.
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The ectoparasitic mite Varroa destructor that parasitize honey bees has become a global problem. Although this mite is unlikely to, by itself, cause the mortality of hives, it plays an important role as a vector for many viral diseases. These diseases are identified as some of the most important reasons for the Colony Collapse Disorder. The effects of V.destructor infestation are disparate in different parts of the world. Greater morbidity - in the form of colony losses - has been reported in colonies of European honey bees (EHB) in countries of Europe, Asia and North America. However, this mite has been in Brasil for many years and there are no reports of losses of Africanized honey bees (AHB) colonies. Studies carried out in Mexico showed that some resistance behaviors to the Varroa mite - especially grooming and hygienic behavior - appear to be different in each subspecies. Could those mechanisms explain why the AHB are less susceptible to Colony Collapse Disorder? In order to answer this question, we propose a mathematical model based on differential equations, to analyze the role of these resistance mechanisms in the overall health of the colony, and it’s ability to face environmental challenges.
Os ácaros ectoparasitas Varroa destructor, que parasitam as abelhas tornaram-se um problema global. Embora seja pouco provável que estes ácaros, por si só, provoquem a mortalidade das colmeias, eles desempenham um importante papel como vetor de muitas doenças virais. E estas doenças são identificados como algumas das mais importantes razões para a Desordem do Colapso das Colônias. Os efeitos da infestação do V.destructor são distintas em diferentes partes do mundo. Maiores mortalidades de colônias têm sido relatadas em colônias de abelhas européias (AE) em países da Europa, Ásia e América do Norte. No entanto, este ácaro está presente no Brasil já por muitos anos e não existem relatos de perdas em colônias das abelhas africanizadas (AA). Estudos realizados no México mostraram que alguns comportamentos de resistência ao ácaro Varroa - especialmente o grooming e o comportamento higiênico - são diferentes em cada uma das subespécie. Poderiam então esses mecanismos explicar por que as abelhas africanizadas são menos suscetíveis à Desordem do Colapso das Colônias? A fim de responder a esta pergunta, propomos um modelo matemático baseado em equações diferenciais, com o objetivo de analisar o papel desses mecanismos de resistência na saúde geral da colônia e na capacidade da colônia para enfrentar desafios ambientais.
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Blut, Christina [Verfasser], Martin [Gutachter] Beye, and Klaus [Gutachter] Lunau. "An innovative computer-based method for continuous behavioural detection in honeybee colonies (Apis mellifera) and the social organization of moving behaviour on the comb / Christina Blut ; Gutachter: Martin Beye, Klaus Lunau." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2018. http://d-nb.info/1166398315/34.
Full textBooks on the topic "Hygienic behaviour;honeybee;Apis mellifera"
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Ferneyhough, Benjamin. Olfactory learning, its development and changing role in Honeybee (Apis Mellifera) behaviour. Oxford: Oxford Brookes University, 2000.
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