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Nonylphenol Stimulates Fecundity But Not Population Growth Rate (Λ) Of Folsomia Candida, T. Widarto, P. Krogh, Valery Forbes
Nonylphenol Stimulates Fecundity But Not Population Growth Rate (Λ) Of Folsomia Candida, T. Widarto, P. Krogh, Valery Forbes
Valery E Forbes
The toxicity of nonylphenol (NP) to springtails was pronounced at 40 mg/kg dry weight soil, at which no animals survived. Body length and fecundity were the individual life-history traits significantly stimulated by sublethal concentrations of NP during a 64-day experiment. However, the effects of NP on these traits did not result in a statistically significant increase in population growth rate (λ). Decomposition analysis indicated that fecundity was the main contributor to the (non-significant) changes observed in λ. However, since the elasticity of fecundity was very low, large changes in fecundity resulted in a minimal effect on λ. Juvenile survival had …