Neurobiology of alarm pheromone perception in Africanized honey bees,Apis mellifera

2016 ◽  
Author(s):  
Bahram Kheradmand
Keyword(s):  
Apis Mellifera ◽  
Honey Bees ◽  
Alarm Pheromone ◽  
Africanized Honey Bees ◽  
Pheromone Perception

scholarly journals Thermoregulation in colonies of africanized and hybrids with Caucasian, Italian and Carniolan Apis mellifera honey bees

1999 ◽  
Vol 42 (4) ◽  
Author(s):  
Vagner de Alencar Arnaut de Toledo ◽  
Regina Helena Nogueira-Couto
Keyword(s):  
Apis Mellifera ◽  
Honey Bees ◽  
Maximum Temperature ◽  
Tropical Region ◽  
Internal Temperature ◽  
Africanized Honey Bees ◽  
Significant Difference ◽  
The Mean ◽  
One Year ◽  
Brood Nest

This experiment was carried out to study the internal temperature regulation of a colony of Africanized honey bees (AFR), compared with hybrid Caucasian (CAU), Italian (ITA), and Carniolan (CAR) bees, during the period of one year and different size hives located in a sub-tropical region. The instant internal temperature, 33.7 ± 1.5° C for the AFR, 33.5 ± 1.4° C for the CAU, 33.7 ± 1.5° C for the ITA and 33.8 ± 1.4° C for the CAR, did not show any significant difference (P>0.05). The maximum temperature (36.1 ± 2.3° C) was statistically different (P<0.05) from the minimum (27.6 ± 5.3° C). There was no difference (P>0.05) in the mean internal temperature, between the nucleus (31.7 ± 6.3° C) and the brood nest (32.1 ± 5.3° C) measured between two and four o'clock in the afternoon.

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

1999 ◽  
Vol 22 (3) ◽  
pp. 321-323 ◽  
Author(s):  
Geraldo Moretto ◽  
Leonidas João de Mello Jr.
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Honey Bees ◽  
Mite Infestation ◽  
Varroa Jacobsoni ◽  
Africanized Honey Bees ◽  
African Honey Bees ◽  
Africanized Bees ◽  
Bee Colonies ◽  
Different Levels

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.

Development of an Ethanol Model Using Social Insects: IV. Influence of Ethanol on the Aggression of Africanized Honey Bees (Apis Mellifera L.)

2004 ◽  
Vol 94 (3_suppl) ◽  
pp. 1107-1115 ◽  
Author(s):  
Charles I. Abramson ◽  
Aaron J. Place ◽  
Italo S. Aquino ◽  
Andrea Fernandez
Keyword(s):  
Apis Mellifera ◽  
Social Insects ◽  
Honey Bees ◽  
Sucrose Solution ◽  
Ecological Validity ◽  
Ethanol Consumption ◽  
Ethanol Solution ◽  
Control Groups ◽  
Africanized Honey Bees ◽  
Unique Aspect

Experiments were designed to determine whether ethanol influenced aggression in honey bees. Two experiments are reported. In Exp. 1, harnessed honey bees were fed a 1%, 5%, 10%, or 20% ethanol solution. Two control groups received either a sucrose solution only or no pretreatment, respectively. The dependent variable was the number of sting extensions over 10 min. Analysis showed that aggression in harnessed bees was not influenced by prior ethanol consumption. Because there was some suspicion that the extension of the sting apparatus may be hindered by harnessing, and the authors wanted to use a design that increased ecological validity, Exp. 2 was conducted with free-flying bees. Sucrose or 20% ethanol solutions were placed in front of beehives, and the number of stings on a leather patch dangled in front of the hive served as the dependent variable. The experiment was terminated after 5 hr. because bees exposed to ethanol became dangerously aggressive. A unique aspect of the study was that Africanized honey bees were used.

scholarly journals Phenotypic correlations of field and laboratory tests with honey production in Africanized honey bees (Apis mellifera)

Apidologie ◽  
2008 ◽  
Vol 39 (5) ◽  
pp. 523-530 ◽  
Author(s):  
Oscar Zárate ◽  
Chavier De Araujo-Freitas ◽  
Luis A. Medina ◽  
Alfonso Velásquez ◽  
J. Javier G. Quezada-Euán
Keyword(s):  
Apis Mellifera ◽  
Honey Bees ◽  
Laboratory Tests ◽  
Africanized Honey Bees ◽  
Honey Production ◽  
Phenotypic Correlations
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