Susceptibility of European and Africanized honeybees (Apis mellifera L) and their hybrids to Varroa jacobsoni Oud

Guzmán-Novoa, Ernesto; Sánchez, Andrés; Page, Robert E.; García, Tamara

doi:10.1051/apido:19960204

Cited by 43 publications

(44 citation statements)

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“…Low rates of mite infestation in African-derived honey bee colonies have been associated with a number of factors, including high swarming and migratory behavior (Otis, 1991), high levels of expression of hygienic behavior (Guerra Jr. et al, 2000;Vandame et al, 2002) or grooming behavior (Moretto et al, 1993(Moretto et al, , 1997Arechavaleta-Velasco and Guzmán-Novoa, 2001;Guzmán-Novoa et al, 2012), reduced susceptibility to mite invasion and reproduction (Ritter and De Jong, 1984;Guzmán-Novoa et al, 1996;Medina and Martin, 1999;Mondragón et al, 2006), reduced cell size (Message and Gonçalves, 1995;Piccirillo and De Jong, 2003), and other factors of less relevance.…”

Section: Discussionmentioning

confidence: 99%

Africanized honey bees (Apis mellifera) have low infestation levels of the mite Varroa destructor in different ecological regions in Mexico

et al. 2014

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ABSTRACT. Honey bee (Apis mellifera) colonies of African and European descent were compared for levels of Varroa destructor infestation in 3 different ecological regions in Mexico. The 300 colonies that were studied were located in subtropical, temperate sub-humid, and temperate dry climates. The morphotype and mitotype of adult bees as well as their rates of infestation by varroa mites were determined. Additionally, the number of combs with brood and covered with bees was recorded for each colony. The highest frequency of colonies that were classified as African-derived was found in the subtropical environment, whereas the lowest occurred in the temperate dry region. Overall, the colonies of African genotype had significantly lower mite infestation rates (3.5 ± 0.34%) than the colonies of European genotype (4.7 ± 0.49%) regardless of the region sampled. Significant effects of genotype and region on Varroa infestation rates were evident, and there were no differences in bee population or capped brood between 7283 Genotypic and environmental effects on varroa mites ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 13 (3): 7282-7293 (2014) genotypes. Mite infestation levels were significantly lower in the colonies of the temperate dry region than in the colonies of the other 2 regions. These results are discussed within the context of results from studies that were previously conducted in Brazil. This is the first study that demonstrates the effects of Africanization and ecological environment on V. destructor infestation rates in honey bee colonies in North America.

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Section: Discussionmentioning

confidence: 99%

Africanized honey bees (Apis mellifera) have low infestation levels of the mite Varroa destructor in different ecological regions in Mexico

et al. 2014

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“…Adult In the third study (M.E. Arechavaleta, unpublished data), the methods were similar to the ones used by Guzmán-Novoa et al [17] In the United States, Spivak [33] and Spivak and Reuter [34] reported that colonies selected for hygienic behavior had lower mite levels than non-hygienic ones in some experiments. However Looking for factors to explain the bee's tolerance to V. jacobsoni in Mexico, two independent studies [17,35] showed that European bee brood was twice as attractive to the mites as Africanized brood.…”

Section: Introductionmentioning

confidence: 92%

“…In Brazil, low mite fertility rates (40 %) are reported to be responsible for bee resistance to V. jacobsoni [26]. In Mexico, the fertility rates in European and Of the mites that do reproduce, no differences in the number of progeny produced by fertile female mites have been found in Mexico [17,20,35], which supports the same findings in Brazil [29]. These results suggest that the number of progeny generated per reproductive female mite does not explain the differences of mite population growth between colonies of Africanized and European honey bees.…”

Section: Introductionmentioning

confidence: 99%

Susceptibility of European and Africanized honey bees (Apis mellifera L.) to Varroa jacobsoni Oud. in Mexico

Guzmán-Novoa

Vandame²,

Arechavaleta³

1999

Apidologie

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-The knowledge generated from several studies conducted in Mexico on the susceptibility of European and Africanized honey bees to Varroa jacobsoni is reviewed and compared with the situation in Brazil. There is evidence of genotypic variation for mite population growth, and for tolerance to the mite in honey bee colonies located in Mexico. However, Mexican honey bees seem to be relatively less tolerant to the parasite than bees in Brazil. The main difference is that mite fertility rates in Mexico are higher than those reported from Brazil. Hypotheses for why the situation is different in Mexico than in Brazil are discussed. © Inra/DIB/AGIB/Elsevier, Paris Varroa jacobsoni / tolerance / Apis mellifera / Africanized bee / Mexico

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“…In a study by Gusman-Novoa et al (1996) in Mexico, with adult Africanized and European bees from Mexico, maintained in the same beehive, the level of infestation with the mite Varroa jacobsoni was twice as high on Africanized bees, compared to European bees, approximately 5 and 10%, respectively. The infestation on both bee races in Mexico was about three times that found in our study in Brazil.…”

Section: Resultsmentioning

confidence: 96%

“…Thus, the Africanized bees of Brazil have been in contact with the varroa for approximately 20 years. In the study by Gusman-Novoa et al (1996), the Africanized bees were obtained from a region in Mexico that was still free from the mite, indicating that these bees had never been in contact with this parasite. The similar relative response (when compared to European bees) to Varroa jacobsoni by Africanized bees that have been in contact with it for 20 years in Brazil and by those which have been in contact with it for the first time in Mexico suggests that Africanized bees are preadapted to this mite.…”

Section: Resultsmentioning

confidence: 99%

Varroa jacobsoni infestation of adult Africanized and Italian honey bees (Apis mellifera) in mixed colonies in Brazil

Moretto

Mello

1999

Genet. Mol. Biol.

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Different levels of infestation with the mite Varroa jacobsoni have been observed in the various Apis mellifera races. In general, bees of European races are more susceptible to the mite than African honey bees and their hybrids. In Brazil honey bee colonies are not treated against the mite, though apparently both climate and bee race influence the mite infestation. Six mixed colonies were made with Italian and Africanized honey bees. The percentage infestation by this parasite was found to be significantly lower in adult Africanized (1.69 ± 0.44) than Italian bees (2.79 ± 0.65). This ratio was similar to that found in Mexico, even though the Africanized bees tested there had not been in contact with varroa, compared to more than 20 years of the coexistence in Brazil. However, mean mite infestation in Brazil on both kinds of bees was only about a third of that found in Mexico.
Desde o contato inicial entre o ácaro Varroa jacobsoni e a abelha Apis mellifera, diferentes níveis de infestação foram verificados entre as diversas raças dessa espécie de abelhas. O presente trabalho teve como objetivo verificar o grau de infestação determinado pelo acaro Varroa jacobsoni em abelhas Apis mellifera, africanizadas e italianas puras, quando criadas numa mesma colméia. Para isso, o grau de infestação foi obtido em seis colônias de abelhas constituídas de operárias de ambas as raças. O resultado de dezesseis repetições mostrou que as abelhas africanizadas foram menos infestadas que as abelhas italianas. Esse resultado sugere que, nas condições naturais de infestação, as abelhas africanizadas são mais defensivas ao parasita Varroa jacobsoni, garantindo a essa raça de abelhas a resistência à praga varroosis

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Susceptibility of European and Africanized honeybees (Apis mellifera L) and their hybrids to Varroa jacobsoni Oud

Cited by 43 publications

References 11 publications

Africanized honey bees (Apis mellifera) have low infestation levels of the mite Varroa destructor in different ecological regions in Mexico

Africanized honey bees (Apis mellifera) have low infestation levels of the mite Varroa destructor in different ecological regions in Mexico

Susceptibility of European and Africanized honey bees (Apis mellifera L.) to Varroa jacobsoni Oud. in Mexico

Varroa jacobsoni infestation of adult Africanized and Italian honey bees (Apis mellifera) in mixed colonies in Brazil

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