Beehive Microclimate Significantly Influences the Activity and Productivity of Honey Bee (Apis mellifera L.) Colonies

Abstract

Environmental conditions, particularly temperature, significantly influence a honey bee colony, affecting its behavior, physiology, and performance. This study aimed to investigate the effects of shaded and unshaded environments on colony growth and performance. The experiments were conducted in shaded and unshaded colonies in the same apiary, and data were collected on the temperature inside and outside the brood nest, foraging activity, stored pollen area, sealed brood area, bee population size, and honey yield. The unshaded colonies exhibited higher brood nest temperatures and enhanced colony performance during cooler months, with a significantly greater number of foragers and pollen foragers, a larger stored pollen area, sealed brood areas, a larger colony population size, and a higher honey yield than shaded colonies. Conversely, shaded colonies outperformed unshaded colonies during hotter months, as unshaded colonies experienced stress from elevated temperatures, leading to reduced foraging activity, pollen collection, colony growth, and honey production. These findings highlight the crucial role of microclimatic conditions in honey bee colony management, underscoring the importance of providing optimal environmental conditions to support colony performance and sustainability, particularly in fluctuating climatic conditions. It is recommended to shade the beehives in the summer and remove the shading in the winter and spring.