Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1021/es401346d
Titel (primär) Culmination of low-dose pesticide effects
Autor Liess, M.; Foit, K.; Becker, A.; Hassold, E.; Dolciotti, I.; Kattwinkel, M.; Duquesne, S.
Quelle Environmental Science & Technology
Erscheinungsjahr 2013
Department OESA; OEKOTOX
Band/Volume 47
Heft 15
Seite von 8862
Seite bis 8868
Sprache englisch
UFZ Querschnittsthemen RU3;

Pesticides applied in agriculture can affect the structure and function of non-target populations at lower doses and for longer timespans than predicted by the current risk assessment frameworks. We identified a mechanism for this observation. The populations of an aquatic invertebrate (Culex pipiens) exposed over several generations to repeated pulses of low concentrations of the neonicotinoid insecticide (thiacloprid) continuously declined and did not recover in the presence of a less sensitive competing species (Daphnia magna). By contrast, in the absence of a competitor, insecticide effects on the more sensitive species were only observed at concentrations one order of magnitude higher, and the species recovered more rapidly after a contamination event. The underlying processes are experimentally identified and reconstructed using a simulation model. We conclude that repeated toxicant pulse of populations that are challenged with interspecific competition may result in a multigenerational culmination of low-dose effects.

dauerhafte UFZ-Verlinkung
Liess, M., Foit, K., Becker, A., Hassold, E., Dolciotti, I., Kattwinkel, M., Duquesne, S. (2013):
Culmination of low-dose pesticide effects
Environ. Sci. Technol. 47 (15), 8862 - 8868 10.1021/es401346d