Life-table study with the springtail Folsomia candida (Willem) exposed to cadmium, chlorpyrifos and triphenyltin hydroxide

Crommentuijn, Trudie; Doodeman, C.J.A.M.; Doornekamp, A.; Gestel, C.A.M. van

doi:10.1007/978-1-4615-6361-7_13

Cited by 28 publications

(28 citation statements)

References 17 publications

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“…In many cases, a small effect on growth will be accompanied by a larger effect on reproduction. In extreme cases, a chemical may completely suppress reproduction yet have no effect on body size (for example, chlorpyrifos on springtails, Crommentuijn et al, 1997). Therefore, NOEC or ECx values for different endpoints cannot be directly compared.…”

Section: Limitations Of Current Proceduresmentioning

confidence: 99%

Making Sense of Ecotoxicological Test Results: Towards Application of Process-based Models

2006

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The environmental risk of chemicals is routinely assessed by comparing predicted exposure levels to predicted no-effect levels for ecosystems. Although process-based models are commonly used in exposure assessment, the assessment of effects usually comprises purely descriptive models and rules-of-thumb. The problems with this approach start with the analysis of laboratory ecotoxicity tests, because only a limited amount of information is extracted. Standard summary statistics (NOEC, ECx, LC50) are of limited use in part because they change with exposure duration in a manner that varies with the tested species and the toxicant. As an alternative, process-based models are available. These models allow for toxicity measures that are independent of exposure time, make efficient use of the available data from routine toxicity tests, and are better suited for educated extrapolations (e.g., from individual to population, and from continuous to pulse exposure). These capabilities can be used to improve regulatory decisions and allow for a more efficient assessment of effects, which ultimately will reduce the need for animal testing. Process-based modeling also can help to achieve the goals laid out in REACH, the new strategy of the European Commission in dealing with chemicals. This discussion is illustrated with effects data for Daphnia magna, analyzed by the DEBtox model.

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Section: Limitations Of Current Proceduresmentioning

confidence: 99%

Making Sense of Ecotoxicological Test Results: Towards Application of Process-based Models

2006

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“…However, due to the reduced survival and later reproductive development it can be speculated that population growth of metal-exposed F. candida will be somewhat slower than in noncontaminated conditions. Crommentuijn et al (1997b) calculated that the intrinsic rate of natural increase (r) declines in F. candida populations that are exposed to higher concentrations of Cd in the food. In "eld conditions it was suggested that although the average adult size in polluted sites becomes smaller, Collembola can survive in the environment because the metal-tolerant fungi which thrive there are protein-rich (Bengtsson et al, 1985a).…”

Section: Reproductionmentioning

confidence: 99%

“…Hence parameters such as growth, oviposition, and hatching times cannot be monitored (Scott-Fordsmand et al, 1997). Only two studies have exposed F. candida to metals in yeast, with Cd and Zn being tested individually (Crommentuijn et al, 1995;1997b;Smit, 1997, respectively).…”

Section: Introductionmentioning

confidence: 99%

Continuous Monitoring of Folsomia candida (Insecta: Collembola) in a Metal Exposure Test

Fountain

Hopkin

2001

Ecotoxicology and Environmental Safety

139

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“…Particular favorites are cladocerans [8,9] for freshwater ecosystems, and springtails [10,11] and nematodes [3,12,13] for soils. Particular favorites are cladocerans [8,9] for freshwater ecosystems, and springtails [10,11] and nematodes [3,12,13] for soils.…”

Section: Introductionmentioning

confidence: 99%

Quantifying Copper and Cadmium Impacts on Intrinsic Rate of Population Increase in the Terrestrial Oligochaete Lumbricus Rubellus

Spurgeon¹,

Svendsen²,

Weeks³

et al. 2003

Environ Toxicol Chem

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Demographic methods can translate toxicant effects on individuals into consequences for populations. To date few such studies have been conducted with longer-lived invertebrates. This is because full life-cycle experiments are difficult with such species. Here we report the effects of copper and cadmium on the key demographic parameter intrinsic rate of population increase (r) in a long-lived invertebrate (an earthworm). The approach used to derive r was based on robust measurement of effects on life-cycle traits in three specifically designed toxicity tests and integration of this data within a demographic model. The three laboratory tests used to generate values for specific life-cycle parameters under copper and cadmium exposure were suited to the task. Significant effects on a range of separate adult and juvenile life-cycle parameters were seen. Integration of parameter values within the demographic equation indicated that for copper, r was reduced only at a concentration that also caused adult mortality. For cadmium, a more graded exposure-dependent effect on fitness was seen, with r reduced at sublethal concentrations. The concentration response patterns for r found for the two metals suggest significantly different consequences for earthworm populations exposed to sublethal levels of copper and cadmium.

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Life-table study with the springtail Folsomia candida (Willem) exposed to cadmium, chlorpyrifos and triphenyltin hydroxide

Cited by 28 publications

References 17 publications

Making Sense of Ecotoxicological Test Results: Towards Application of Process-based Models

Making Sense of Ecotoxicological Test Results: Towards Application of Process-based Models

Continuous Monitoring of Folsomia candida (Insecta: Collembola) in a Metal Exposure Test

Quantifying Copper and Cadmium Impacts on Intrinsic Rate of Population Increase in the Terrestrial Oligochaete Lumbricus Rubellus

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