de.mpg.escidoc.pubman.appbase.FacesBean
Deutsch
 
Hilfe Wegweiser Datenschutzhinweis Impressum Kontakt
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Konferenzbeitrag

Der Stand der aquatischen Ökotoxikologie - aus der Sicht eines Ökologen

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons56790

Lampert,  Winfried
Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

Externe Ressourcen
Es sind keine Externen Ressourcen verfügbar
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Lampert, W. (1992). Der Stand der aquatischen Ökotoxikologie - aus der Sicht eines Ökologen. In H. Becker, F. Döpke, E. Dorn, R. Heitefuss, B. Holtschulte, & H. Köpp (Eds.), Beurteilung von Pflanzenschutzmitteln in aquatischen Ökosystemen (pp. 147-161). Weinheim: VCH.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-E46B-2
Zusammenfassung
New ecological concepts were developed in the last years permitting better ecotoxicological prognoses than the energy flow concepts. The processes determining structures and changes of communities are discussed. In the aquatic ecology, the size-efficiency hypothesis and the resource-ratio concept were particularly successful in forecasting community structures. The control of aquatic communities "bottom up" via resource availability and reproduction, or "top down" is described. By exemplary tests carried out with pesticides it is demonstrated that the possibilities of forecasting (indirect) effects may be improved by using mechanistic models. Since terms as stability, diversity and energy flow efficiency are hardly appropriate as test parameters, the evaluation of effects on ecosystems will result in an evaluation of function and structure of the food web.