International Scholarly Research Notices

Research Article

The Effect of Prey Density on Life Table Parameters of Hippodamia variegata (Coleoptera: Coccinellidae) Fed on Aphis gossypii (Hemiptera: Aphididae) under Laboratory Conditions

Table 2

The population parameters: intrinsic rate of increase (d−1), finite rate of increase (d−1), net reproductive rate (offspring/individual), mean generation time (day), and gross reproductive rate (offspring/individual) of Hippodamia variegata reared on different densities of Aphis gossypii.
Prey densityIntrinsic rate of
increase 		Finite rate of
increase 		Net reproductive
rate 		Mean generation
time 		Gross reproductive
rate (GRR)
20
40
60
80
100
Within columns, values followed by the same letter do not differ significantly using the Duncan-LSD procedure.