Variability in ambient climate and weather conditions greatly influences the survival and distribution of much important flora or faunal species, especially bee pollinating species. In this study, the impact of variation in two air pollutants (Carbon monoxide in parts per million (CO_PPM) and Ozone in parts per million (O3_PPM), as well as humidity and temperature on foraging, guarding, flying in and flying out activities of 19 Hypotrigona gribodoi bee nest entrances, were assessed. Generally, positive correlations were observed between increasing levels of air pollutants, climatic variables and the number of bees involved in nest entrance activities. Guarding behaviour of these bees seems to be controlled by other factors more than the measured conditions in this study. This study contributes to stakeholders’ knowledge on how climatic conditions including air pollutants influence on bees’ nest entrance activities
