T. collina Smith, 1857 ???????? T. fimbriata Smith, 1857

Abstract

Population dynamics of the stingless bees, T. apicalis, T. collina and T. fimbriata were
investigated at Phitsanulok Nature Education Center. We found that temperature and light intensity are
the main effects on foraging behavior. Cubic equation showed the highest R Sq, and it was then selected
as the prediction equation. All stingless bee species have non ??? overlapping foraging times. The foraging
period of T. apicalis was between 08.00 ??? 09.30 am, T. collina was between 09.30 ??? 11.00 am and
T. fimbriata was between 06.00 ??? 08.30 am.

Keywords: Population Dynamics, Stingless Bees, Trigona apicalis, T. collina, T. fimbriata