Table 1 Larval and pupal life history traits (mean ± SE) of Dendrolimus punctatus when larvae reared on different aged host species based on univariate procedure of GLM
From: Life history traits in a capital breeding pine caterpillar: effect of host species and needle age
Parameters | Host species | Needle age | ||||
|---|---|---|---|---|---|---|
P. massoniana | P. elliottii | F | Previous-year needles | Current-year needles | F | |
Larval survivorship (%) | 46.00 ± 3.93 | 19.67 ± 3.98 | 35.06** | 39.00 ± 6.26 | 26.67 ± 6.81 | 7.69* |
Pupal survivorship (%) | 86.42 ± 5.33 | 41.07 ± 4.03 | 65.79** | 70.70 ± 10.87 | 56.79 ± 10.63 | 6.20* |
Larval development times (days) | 32.83 ± 0.48 | 43.48 ± 0.60 | 212.27** | 34.17 ± 0.69 | 38.73 ± 0.68 | 44.30** |
Pupal development times (days) | 7.16 ± 0.09 | 8.39 ± 0.22 | 29.62** | 7.15 ± 0.12 | 7.76 ± 0.15 | 8.11** |
Female pupal weight (g) | 0.99 ± 0.03 | 0.69 ± 0.03 | 36.11** | 0.84 ± 0.04 | 0.80 ± 0.06 | 2.73 |
Male pupal weight (g) | 0.66 ± 0.01 | 0.43 ± 0.01 | 193.89** | 0.58 ± 0.02 | 0.51 ± 0.02 | 15.05** |
Percentage of adult emergence (%) | 39.67 ± 4.11 | 8.67 ± 2.29 | 151.74** | 30.33 ± 8.11 | 18.00 ± 6.11 | 24.02** |
Percentage of female progeny (%) | 40.21 ± 2.63 | 28.06 ± 7.10 | 2.18 | 36.93 ± 3.85 | 31.34 ± 7.36 | 0.46 |
Female growth index (mg/day) | 31.25 ± 1.75 | 16.04 ± 0.76 | 62.04** | 23.90 ± 1.84 | 20.15 ± 2.12 | 10.11** |
Male growth index (mg/day) | 21.06 ± 0.89 | 9.74 ± 0.34 | 130.49** | 17.39 ± 1.09 | 13.20 ± 1.05 | 15.37** |