Similarity-index based method to estimate chemical concentration limits protective for ecological communities

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dc.contributor.author Schafer, Ralf en_US
dc.contributor.author Liess, M en_US
dc.contributor.author Goonan, P en_US
dc.contributor.author Metzeling, L en_US
dc.contributor.author Nugegoda, Dayanthi en_US
dc.contributor.author Kefford, Ben en_US
dc.contributor.editor en_US
dc.date.accessioned 2012-02-02T05:03:59Z
dc.date.available 2012-02-02T05:03:59Z
dc.date.issued 2010 en_US
dc.identifier 2009008309 en_US
dc.identifier.citation Kefford Benjamin et al. 2010, 'Similarity-index based method to estimate chemical concentration limits protective for ecological communities', SETAC Press, vol. 29, no. 9, pp. 2123-2131. en_US
dc.identifier.issn 0730-7268 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/14600
dc.description.abstract A new method is presented to determine retrospectively proportional changes of species composition in a community at risk from particular concentrations of chemical stressors. The method makes estimates with some similarities to those claimed by species sensitivity distributions (SSDs) but is based on species presence/absence field data and requires assumptions that are more likely to be met. The method uses Jaccard's index (JI), the proportion of species in common to two samples. At a similar level of contamination, the occurrence of species is usually highly variable, and thus JI values between individual pairs of samples can be low. However, by pooling samples with a similar contamination level, an increasingly complete set of species present at this level of contamination is gained. Our method involves calculating JI between randomly selected groups of samples (pooled sample sets) with similar and different levels of contamination. It then relates changes in JI to the difference in contamination and produces estimates of the proportional change in species between preselected categories of contamination. The application of the method is illustrated by using data on riverine freshwater macroinvertebrates exposed to salinity in southeastern Australia; pesticide runoff potential in the Aller River Catchment, Germany; and metal pollution (principle Cu) in the Clark Fork River Catchment, Montana, USA en_US
dc.language en_US
dc.publisher SETAC Press en_US
dc.relation.isbasedon http://dx.doi.org/10.1002/etc.256 en_US
dc.title Similarity-index based method to estimate chemical concentration limits protective for ecological communities en_US
dc.parent Environmental Toxicology And Chemistry en_US
dc.journal.volume 29 en_US
dc.journal.number 9 en_US
dc.publocation USA en_US
dc.identifier.startpage 2123 en_US
dc.identifier.endpage 2131 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 060200 en_US
dc.personcode 109859 en_US
dc.personcode 0000064384 en_US
dc.personcode 0000064385 en_US
dc.personcode 0000064386 en_US
dc.personcode 0000062846 en_US
dc.personcode 034710 en_US
dc.percentage 100 en_US
dc.classification.name Ecology en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords * Risk assessment; * Community change; * Stream invertebrates; * Similarity indexes en_US
dc.staffid en_US
dc.staffid 034710 en_US


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