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Article: Better bootstrap estimation of hazardous concentration thresholds for aquatic assemblages

TitleBetter bootstrap estimation of hazardous concentration thresholds for aquatic assemblages
Authors
KeywordsBootstrap regression
Risk assessment
Species sensitivity distribution
Issue Date2002
PublisherSociety of Environmental Toxicology and Chemistry. The Journal's web site is located at http://etc.allenpress.com/
Citation
Environmental Toxicology And Chemistry, 2002, v. 21 n. 7, p. 1515-1524 How to Cite?
AbstractThe introduction of species sensitivity distribution (SSD) approaches to ecological risk assessment offers the potential for a more transparent scientific basis for the derivation of predicted no-effect concentrations. However, conventional SSD methodologies have relied on standard distributions (e.g., log logistic, log normal) that are not necessarily based on sound ecological or statistical grounds. More recently, bootstrap resampling techniques that do not rely on distributional assumptions have been applied to the problem. Here we describe how a more advanced bootstrap methodology may be applied to derive better point estimates and confidence intervals for SSD estimates of safe environmental concentrations. Motivated by the fact that the true SSD may not fit any standard model category, we go on to consider a hybrid bootstrap regression approach. This can yield a substantially different estimate for the SSD when compared with both the basic bootstrap and the more frequently used parametric curve approaches. With increasing use of SSDs in ecological risk assessment, it is now imperative that the scientific community develops agreement over appropriate methods for their derivation.
Persistent Identifierhttp://hdl.handle.net/10722/73462
ISSN
2015 Impact Factor: 2.763
2015 SCImago Journal Rankings: 1.523
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorGrist, EPMen_HK
dc.contributor.authorLeung, KMYen_HK
dc.contributor.authorWheeler, JRen_HK
dc.contributor.authorCrane, Men_HK
dc.date.accessioned2010-09-06T06:51:29Z-
dc.date.available2010-09-06T06:51:29Z-
dc.date.issued2002en_HK
dc.identifier.citationEnvironmental Toxicology And Chemistry, 2002, v. 21 n. 7, p. 1515-1524en_HK
dc.identifier.issn0730-7268en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73462-
dc.description.abstractThe introduction of species sensitivity distribution (SSD) approaches to ecological risk assessment offers the potential for a more transparent scientific basis for the derivation of predicted no-effect concentrations. However, conventional SSD methodologies have relied on standard distributions (e.g., log logistic, log normal) that are not necessarily based on sound ecological or statistical grounds. More recently, bootstrap resampling techniques that do not rely on distributional assumptions have been applied to the problem. Here we describe how a more advanced bootstrap methodology may be applied to derive better point estimates and confidence intervals for SSD estimates of safe environmental concentrations. Motivated by the fact that the true SSD may not fit any standard model category, we go on to consider a hybrid bootstrap regression approach. This can yield a substantially different estimate for the SSD when compared with both the basic bootstrap and the more frequently used parametric curve approaches. With increasing use of SSDs in ecological risk assessment, it is now imperative that the scientific community develops agreement over appropriate methods for their derivation.en_HK
dc.languageengen_HK
dc.publisherSociety of Environmental Toxicology and Chemistry. The Journal's web site is located at http://etc.allenpress.com/en_HK
dc.relation.ispartofEnvironmental Toxicology and Chemistryen_HK
dc.subjectBootstrap regressionen_HK
dc.subjectRisk assessmenten_HK
dc.subjectSpecies sensitivity distributionen_HK
dc.titleBetter bootstrap estimation of hazardous concentration thresholds for aquatic assemblagesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0730-7268&volume=21&spage=1515&epage=1524&date=2002&atitle=Better+Bootstrap+Estimation+of+Hazardous+Concentration+Thresholds+for+Aquatic+Assemblagesen_HK
dc.identifier.emailLeung, KMY: kmyleung@hku.hken_HK
dc.identifier.authorityLeung, KMY=rp00733en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.pmid12109754-
dc.identifier.scopuseid_2-s2.0-0035985210en_HK
dc.identifier.hkuros67631en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0035985210&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume21en_HK
dc.identifier.issue7en_HK
dc.identifier.spage1515en_HK
dc.identifier.epage1524en_HK
dc.identifier.isiWOS:000176576900025-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridGrist, EPM=7003398590en_HK
dc.identifier.scopusauthoridLeung, KMY=7401860738en_HK
dc.identifier.scopusauthoridWheeler, JR=7403110432en_HK
dc.identifier.scopusauthoridCrane, M=7202466944en_HK

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