The trouble with surrogates in environmental risk assessment : a daphniid case study

The use of indicator species to test for environmental stability and functioning is a widespread practice. In aquatic systems, several daphniids (Cladocera: Daphniidae) are commonly used as indicator species; registration of new pesticides are mandated by the Environmental Protection Agency to be ac...

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Veröffentlicht in:Ecotoxicology (London, England). - 1992. - 28(2019), 1 vom: 29. Jan., Seite 62-68
1. Verfasser: Banks, John E (VerfasserIn)
Weitere Verfasser: Ackleh, Azmy S, Veprauskas, Amy, Stark, John D
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Ecotoxicology (London, England)
Schlagworte:Journal Article Matrix Population model Sublethal effects Surrogate species
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520 |a The use of indicator species to test for environmental stability and functioning is a widespread practice. In aquatic systems, several daphniids (Cladocera: Daphniidae) are commonly used as indicator species; registration of new pesticides are mandated by the Environmental Protection Agency to be accompanied by daphniid toxicity data. This reliance upon a few species to infer ecosystem health and function assumes similar responses to toxicants across species with potentially very different life histories and susceptibility. Incorporating lab-derived life-history data into a simple mathematical model, we explore the reliability of three different daphniid species as surrogates for each other by comparing their responses to reductions in survivorship and fecundity after simulated exposure to toxicants. Our results demonstrate that daphniid species' responses to toxicant exposure render them poor surrogates for one another, highlighting that caution should be exercised in using a surrogate approach to the use of indicator species in risk assessment 
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700 1 |a Ackleh, Azmy S  |e verfasserin  |4 aut 
700 1 |a Veprauskas, Amy  |e verfasserin  |4 aut 
700 1 |a Stark, John D  |e verfasserin  |4 aut 
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