Nonylphenol stimulates fecundity but not population growth rate (λ) of Folsomia candida

T.H. Widarto, P. H. Krogh, Valery E. Forbes

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

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 the highest elasticity of all traits, but was not affected by NP, and therefore did not contribute to effects on λ. This study confirms previous studies showing that effects of chemicals on individual life-history traits are attenuated at the population level and that λ is an appropriate endpoint for ecotoxicological studies. © 2007 Elsevier B.V. All rights reserved
Original languageEnglish
JournalEcotoxicology and Environmental Safety
Volume67
Issue number3
Pages (from-to)369-377
Number of pages9
ISSN0147-6513
DOIs
Publication statusPublished - 2007

Keywords

  • Elasticity
  • Life-history
  • Population dynamics
  • Hormesis
  • Folsomia

Cite this

Widarto, T.H. ; Krogh, P. H. ; Forbes, Valery E. / Nonylphenol stimulates fecundity but not population growth rate (λ) of Folsomia candida. In: Ecotoxicology and Environmental Safety. 2007 ; Vol. 67, No. 3. pp. 369-377.
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abstract = "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 the highest elasticity of all traits, but was not affected by NP, and therefore did not contribute to effects on λ. This study confirms previous studies showing that effects of chemicals on individual life-history traits are attenuated at the population level and that λ is an appropriate endpoint for ecotoxicological studies. {\circledC} 2007 Elsevier B.V. All rights reserved",
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Nonylphenol stimulates fecundity but not population growth rate (λ) of Folsomia candida. / Widarto, T.H.; Krogh, P. H.; Forbes, Valery E.

In: Ecotoxicology and Environmental Safety, Vol. 67, No. 3, 2007, p. 369-377.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Nonylphenol stimulates fecundity but not population growth rate (λ) of Folsomia candida

AU - Widarto, T.H.

AU - Krogh, P. H.

AU - Forbes, Valery E.

PY - 2007

Y1 - 2007

N2 - 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 the highest elasticity of all traits, but was not affected by NP, and therefore did not contribute to effects on λ. This study confirms previous studies showing that effects of chemicals on individual life-history traits are attenuated at the population level and that λ is an appropriate endpoint for ecotoxicological studies. © 2007 Elsevier B.V. All rights reserved

AB - 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 the highest elasticity of all traits, but was not affected by NP, and therefore did not contribute to effects on λ. This study confirms previous studies showing that effects of chemicals on individual life-history traits are attenuated at the population level and that λ is an appropriate endpoint for ecotoxicological studies. © 2007 Elsevier B.V. All rights reserved

KW - Elasticity

KW - Life-history

KW - Population dynamics

KW - Hormesis

KW - Folsomia

U2 - 10.1016/j.ecoenv.2006.11.005

DO - 10.1016/j.ecoenv.2006.11.005

M3 - Journal article

VL - 67

SP - 369

EP - 377

JO - Ecotoxicology and Environmental Safety

JF - Ecotoxicology and Environmental Safety

SN - 0147-6513

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ER -