N t ＝N t—1 λ 或 N t＝N0 λ t λ ：种群的周限增长率（reproductive rate） N t ＝N t—1 λ ＝N 0 λ t → log 10 N t ＝log 10 N t—1 +t log 10 λ dN/dt＝N log 10 λ＝rN（指数增长模型） 即： N t ＝...
Its netreproductiverate, the intrinsicrate of increase andthe increment rate per unit were high, but its generationspan and the time ofdoublepopulation size were low.