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Fig. 1.

Resin robbing by Megachile sp.
Resin robbing by Megachile sp.

Fig. 2.

Leucospis sp. in the hive of newly divided colony.
Leucospis sp. in the hive of newly divided colony.

Fig. 3.

Ethogram of different behaviours of stingless bees, T. iridipennis after colony division. A. Emergence of bees from pupal brood cells; B. Pillars and connectives to attach brood to the hive; C. Nest entrance closure by the bees; D. Hive entrance repair activity by the bees.
Ethogram of different behaviours of stingless bees, T. iridipennis after colony division. A. Emergence of bees from pupal brood cells; B. Pillars and connectives to attach brood to the hive; C. Nest entrance closure by the bees; D. Hive entrance repair activity by the bees.

Fig. 4.

Mean number of invasions by different invaders in the newly divided colonies.
Mean number of invasions by different invaders in the newly divided colonies.

Fig. 5.

Task allocation of the bees during initial stages of colony division.
Task allocation of the bees during initial stages of colony division.

Fig. 6.

Damage caused by intruders in newly divided colonies.
Damage caused by intruders in newly divided colonies.

Fig. 7.

Complex nest architecture at nest entrance. Red arrow indicates the complex coral like internal nest entrance made by the bees to pose a difficulty for the intruders during their navigation inside the nest.
Complex nest architecture at nest entrance. Red arrow indicates the complex coral like internal nest entrance made by the bees to pose a difficulty for the intruders during their navigation inside the nest.

Nest defence behaviour recorded in response to the attack by the enemies

Natural enemy Nature of damage caused by the intruder in the unprotected colony Nature of nest entrance closure Type of defence behaviour exhibited by the stingless bees
Resin bee Resin-robbing activity noticed at the nest entrance as well as inside the colony

Full closure of nest entrance from inside for a week period.

Partial outside closure at the entrance tube

Guard bees were sighted near the entrance tube during the resin robbing by the Megachile bee.
Ant

Destroyed the developing pupal broods inside the brood cells

Consumed the honey in the honey pots

Nest closure not observed In a few colonies, the ants were seen trapped in the entrance tube whereas, in other few colonies, some individuals were observed in a dead form as further navigation into the colony was arrested by the formation of complex nest architecture made by the bees inside the colony.
Spider Formed webs in the colonies invaded by ants and resin bees with lost resources Nest closure not observed The spider was seen entangled and killed inside the entrance tube by a layer of mud mixed resin.

Events in the newly divided colony of stingless bees

Sequence of events Mean ± SD (days)
Nest closure 4.37 ± 0.74
Guard bee activity 6.13 ±1.24
Foraging activity 10.63 ±1.06
eISSN:
2299-4831
Język:
Angielski
Częstotliwość wydawania:
2 razy w roku
Dziedziny czasopisma:
Life Sciences, Zoology, other