Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) An indicator for effects of organic toxicants on lotic invertebrate communities: independence of confounding environmental factors over an extensive river continuum
Autor Beketov, M.A.; Liess, M.;
Journal / Serie Environmental Pollution
Erscheinungsjahr 2008
Department OEKOTOX;
Band/Volume 156
Heft 3
Sprache englisch;
Keywords Bioassessment; Macroinvertebrates; Organic toxicants; River continuum; Sensitivity; SPEAR
Abstract Distinguishing between effects of natural and anthropogenic environmental factors on ecosystems is a fundamental problem in environmental science. In river systems the longitudinal gradient of environmental factors is one of the most relevant sources of dissimilarity between communities that could be confounded with anthropogenic disturbances. To test the hypothesis that in macroinvertebrate communities the distribution of species' sensitivity to organic toxicants is independent of natural longitudinal factors, but depends on contamination with organic toxicants, we analysed the relationship between community sensitivity SPEARorganic (average community sensitivity to organic toxicants) and natural and anthropogenic environmental factors in a large-scale river system, from alpine streams to a lowland river. The results show that SPEARorganic is largely independent of natural longitudinal factors, but strongly dependent on contamination with organic toxicants (petrochemicals and synthetic surfactants). Usage of SPEARorganic as a stressor-specific longitude-independent measure will facilitate detection of community disturbance by organic toxicants.Indicator for organic toxicants at community level can be independent of natural environmental factors.
ID 785
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=785
Beketov, M.A., Liess, M. (2008):
An indicator for effects of organic toxicants on lotic invertebrate communities: independence of confounding environmental factors over an extensive river continuum
Environ. Pollut. 156 (3), 980 - 987