Bioaccumulation and toxicity of silver compounds: A review
- H. Ratte
- Environmental Science
- 1 January 1999
A eview of the literature revealed that bioaccumulation of silver in soil is rather low, even if the soil is amended with silver‐containing sewage sludge. Plants grown on tailings of silver mines…
ADaM, an artificial freshwater for the culture of zooplankton
- B. Klüttgen, U. Dülmer, M. Engels, H. Ratte
- Environmental Science
- 1 March 1994
The minimum detectable difference (MDD) and the interpretation of treatment-related effects of pesticides in experimental ecosystems
- T. Brock, M. Hammers‐Wirtz, P. J. Van den Brink
- Environmental ScienceEnvironmental science and pollution research…
- 15 August 2014
This paper proposes a procedure to report and evaluate NOECs and related MDDs in a harmonised way and decision schemes are provided on how MDDs can be used to assess the reliability of microcosm/mesocosm studies and for the derivation of effect classes used to derive regulatory acceptable concentrations.
Removal of estrogenic activity from municipal waste landfill leachate assessed with a bioassay based on reporter gene expression.
- A. Coors, Paul D. Jones, J. Giesy, H. Ratte
- BiologyEnvironmental Science and Technology
- 14 June 2003
It is proposed that bisphenol A was responsible for the majority of estrogenic activity in the raw and treated leachate, and the contribution of treated leaches to the estrogenic load on the aquatic environment seems to be low compared to that of sewage treatment works.
Temperature and Insect Development
- H. Ratte
- Biology
- 1984
The temperature dependence of insect development has been frequently investigated and some empirical “rules” or “laws” about the temperature relation of developmental time have been derived which are employed with some success in pest control.
Experimental evidence of negative interference in Daphnia magna
- Brigitte Goser, H. Ratte
- Environmental ScienceOecologia
- 1 August 1994
Individuals of Daphnia magna Straus living together in groups were found to influence each other in a density-dependent manner. The effect appeared as an inhibition in offspring production and was…
Development and validation of an individual based Daphnia magna population model: The influence of crowding on population dynamics
- T. Preuss, M. Hammers‐Wirtz, U. Hommen, M. Rubach, H. Ratte
- Environmental Science
- 10 February 2009
Periphyton as alternative food source for the filter-feeding cladoceran Daphnia magna
- S. Siehoff, M. Hammers‐Wirtz, T. Strauss, H. Ratte
- Environmental Science
- 2009
The ability of D. magna to graze on periphyton could serve to stabilize its population density and reinforce its competitive advantage over other cladocerans by switching between food sources.
Offspring fitness in Daphnia: Is the Daphnia reproduction test appropriate for extrapolating effects on the population level?
- M. Hammers‐Wirtz, H. Ratte
- Environmental Science
- 1 July 2000
A F1-reproduction test, conducted in control medium with neonates born in the reproduction test, showed that neonate fitness was significantly reduced at concentrations of 1.64 mg/L and higher, suggesting that it appears absolutely necessary to take neonate Fitness into account if the authors intend to assess population-level effects.
Life-strategy shift by intraspecific interaction in Daphnia magna : change in reproduction from quantity to quality
- M. Cleuvers, Brigitte Goser, H. Ratte
- Environmental ScienceOecologia
- 1 April 1997
It is suggested that for the F0 generation the ecological significance of the LiSSII effects is an increase in both the parent and offspring survival probability when food is limited, and under favourable environmental conditions, F2 daphnids that are the offspring of mothers affected byLiSSII appeared well adapted to fast recolonisation when living at low density.
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