Abd Al-Fattah, M. A. A. - W., Y. Y. Ibrahim, and M. I. Haggag, "Some biological aspects of honey bee colonies in relation to the age of beeswax combs", Journal of Apicultural Research, vol. 60, 2021, issue Issue 3, pp. 405-413 , 2020.
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Abou-Shaara, H. F., A. A. Owayss, Y. Y. Ibrahim, and N. K. Basuny, "A review of impacts of temperature and relative humidity on various activities of honey bees", Insectes Sociaux, vol. 64, issue 4, pp. 455–463, 2017. a_review_of_impacts_of_temperature_and_relative_humidity_on_various_activities_of_honey_bees_7.pdf
Abd Al-Fattah, M. A. A. - W., H. A. Sharaf El-Din, and Y. Y. Ibrahim, "Factors affecting the quality of mated honey bee queens stored for different periods in queen-right bank colonies. Effect of cage level and position on holding frame", Journal of Apicultural ResearchJournal of Apicultural Research, vol. 55, issue 4: Taylor & Francis, pp. 284 - 291, 2016. AbstractWebsite

The effect of storage cage level (upper or lower) and its position (peripheral or middle positions) on weight, survival rate and egg laying capacity of honey bee queens stored in queen-right colonies for various storage periods was studied. Storing mated queens in this way had a significant effect on their weight after 75 days of storage. The means of queen weight were 174.9 and 167.4 mg for the upper and lower strips, respectively showing the superiority of the upper one. A significant increase in the mean weight of queens stored in the middle position (172.5 mg) was noticed comparing to peripheral ones (169.8 mg). All the stored queens had significantly greater weight than their original weight before storage during the different periods of experiment. There were significant differences in the survival rate of mated queens stored in different levels, as the mean survival rate of queens stored in the upper strip (69.3%) was higher than the survival rate of mated queens stored in the lower one (60.1%). The queens stored in middle position attained a significantly higher survival rate (70.7%), than those stored in peripheral ones (58.7%).The overall survival rate was negatively influenced with the increase of storing period. In respect of egg laying capacity measured as sealed worker brood area, queens stored for 45 days produced a significantly larger sealed brood area (875.5 cm2) than that produced by queens stored for 75 days (843.2 cm2).

Abou-Shaara, H. F., A. A. Owayss, Y. Y. Ibrahim, and N. K. Basuny, A review of impacts of temperature and relative humidity on various activities of honey bees, , 2017. AbstractWebsite

The importance of pollination services by honey bees (Apis mellifera L.) and their products is well-known. However, honey bee colonies currently face many challenges. These challenges include both biotic and abiotic factors. In this article, the impacts of abiotic factors (mainly temperature and relative humidity) on honey bee activities are reviewed. The suitable ranges of these two factors and the potential impacts of atypical minimal or maximal limits are presented. Social homeostasis of honey bees, and activities inside and outside the colony that are influenced by these two factors are included, followed by a suggestion of additional studies.

Yasser Y. Ibrahim, M. A. A. - A. Fattah, and A. M. Said, "CONTROL OF VARROA MITE IN HONEYBEE COLONIES USING BOTANICAL SMOKE AND ESSENTIOL OILS", bulletin of the entomological society of Egypt., vol. 6, issue 38, pp. 29-37., 2012. original.pdf
El-Shemy, A. A. H., Y. Y. Ibrahim, and D. D. El-kinani, "Detection of Nosema ceranae Fries in Egypt and its seasonal fluctuations", Bulletin of the Entomological society of Egypt , vol. 1, issue 89, pp. 25-37, 2012. detection_of_nosema_cerana_fries_in_egypt_and_its_seasonal_fluctuations.pdf
Sewify, G. A. M. A. L. H., Y. Y. Ibrahim, and M. S. El-Deen, "Beauveria bassiana (Balsamo), a Potential Mycopesticide for Efficient Control of the Honey Bee Ectoparasitic Mite, Varroa destructor Anderson and Trueman", Egyptian Journal of Biological Pest Control, vol. 25, issue 2, pp. 333-337, 2015. 55_swefy_2285928.pdf
Al-Fattah, A. M. A., and Y. Y. Ibrahim, "THE SERIOUS EFFECTS OF THE DANGEROUS INSECT PREDATOR (Vespa orientalis L.) ON HONEYBEE COLONIES IN GIZA GOVERNORATE.", 4 th Conference on Recent Technologies in Agriculture , Faculty of agriculture, Cairo university, 9 September, 2009.
Ibrahim, Y. Y., M. A. A. Fattah, and A. M. Saeid, "EVALUATION OF HYGEIENIC BEHAVIOUR IN CLONIES OF HONEYBEE, Apis Mellifera L. IN EGYPT", Bulletin of the Entomological society of Egypt , vol. 7, issue 89, pp. 63-73, 2012. evaluation_of_hygienic_behavior_in_honeybee_colonies Apis mellifera.pdf