Community level analysis of ecotoxicological field studies. I. Biological monitoring

A number of multivariate techniques including nonmetric clustering, nonmetric multidimensional scaling, and principal components analysis were used to analyze data from a farm pond study in which the pyrethroid insecticide cypermethrin was aerially applied adjacent to the water body. The techniques...

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Bibliographic Details
Published in:Environmental toxicology and chemistry 1999-02, Vol.18 (2), p.149-157
Main Authors: Kedwards, T.J, Maund, S.J, Chapman, P.F
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Applied ecology
Biological and medical sciences
Biological monitoring
Community response
cypermethrin
drift
Ecotoxicology, biological effects of pollution
Farm pond
Fundamental and applied biological sciences. Psychology
monitoring
Multivariate analysis
ponds
Techniques
toxicity
water quality
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Summary:A number of multivariate techniques including nonmetric clustering, nonmetric multidimensional scaling, and principal components analysis were used to analyze data from a farm pond study in which the pyrethroid insecticide cypermethrin was aerially applied adjacent to the water body. The techniques were used to investigate the effects upon benthic and emerging macroinvertebrate communities prior to, during, and following application. Hydrosoil cypermethrin residue was strongly correlated with changes in community composition, and Diptera were found to be most affected by the perturbation. However, any deleterious effect upon chironomid communities was transient, with Chironomidae larvae rapidly recovering after application. The study illustrates how multivariate techniques can aid in the interpretation of biological monitoring studies in which an adequate control pond is unlikely to be available.
ISSN:0730-7268
1552-8618
DOI:10.1002/etc.5620180208