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Table 3 Life table parameters (mean ± SE) of Aphidius matricariae parasitizing Schizaphis graminum at various temperatures

From: Estimating some demographic parameters of Aphidius matricariae Haliday (Hymenoptera: Braconidae), the parasitoid of the greenbug aphid, Schizaphis graminum (Rondani) (Hemiptera: Aphididae), at different temperatures

ParametersTemperature (°C)
rm (♀/♀/day)0.320 ± 0.011a0.310 ± 0.009a0.160 ± 0.014b
R0 (♀/♀/generation)55.306 ± 6.316a48.890 ± 5.148b6.167 ± 0.754c
λ (day−1)1.382 ± 0.014a1.362 ± 0.013a1.171 ± 0.017b
T (day)14.530 ± 0.306a15.655 ± 0.172a10.780 ± 0.160b
DT (day)2.155 ± 0.067a2.235 ± 0.069a4.281 ± 0.342b
rw (♀/♀/week)9.660 ± 0.096a9.536 ± 0.091a8.216 ± 0.117b
  1. Means followed by different letter in the same row are significantly different (Tukey’s test, P < 0.05)
  2. rm intrinsic rate of increase, R0 net reproductive rate, λ finite rate of increase, T mean generation time, DT doubling time, rw increase rate in 1 week