Effects of temperature on the growth and population trends of Atractomorpha burri(Orthoptera:Pyrgomorphidae)
To clarify the effects of temperature on the growth,development,and population parameters of Atractomorpha burri,we measured the developmental duration,survival rate,fecundity,and population trend index parameters of A.burri under constant temperatures of 16℃,20℃,24℃,28℃ and 32℃,with a relative humidity of 70％and a photoperiod of 16 h light//8 h dark(L//D).The results showed that the developmental duration of each stage of A.burri was shortened and the developmental rate was accelerated with increasing temperature.The critical temperatures for population growth and development were 13.14℃(highest)and 37.42℃(lowest),with an optimal temperature of 25.28℃.The survival rate of nymphs was the highest at 24℃,at 67％,and the development could not be completed at 32℃.The average number of eggs laid per female and the population trend index(Ⅰ)were highest at 24℃,with values of 65 and 22.99,respectively.These results suggest that 24℃ is the most suitable temperature for its population generation.Both low and high temperatures had significant effects on the growth and development of A.burri,with high temperatures having a particularly pronounced impact.
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