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Does fish health matter? The Utility of Biomarkers in Fish for Environmental Assessment
(2008-11-28)
Two common strategies to assess exposure to environmental toxicants are to measure chemical concentrations in the environment and to examine the presence of certain species that are known to be sensitive to pollution. The ...
Process-based modelling of N losses from terrestrial ecosystems
(2010-05-20)
Nitrogen (N) loss to atmosphere and ground water can contribute to environmental destruction, by N emission as the greenhouse gas nitrous oxide (N2O) and by leaching of N to contamination and eutrophication of water. Dynamic ...
Characterization of cholorplast protein import in Arabidopsis thaliana with emphasis on Toc64 and Tic55
(2009-12-15)
Although the chloroplast possesses a genome of its own most genes have been transferred during the evolution to the nucleus to acquire more transcriptional control, and couple the activities of the whole cell to events at ...
Steady, ready, go - proteomics of etioplast inner membranes reveals a high readiness for light
(2009-05-25)
Light is essential for development of photosynthetically active chloroplasts. In the absence of light proplastids develop into etioplasts which are readily transformed into chloroplasts upon illumination. The etioplast ...
Phylogeny and biogeography of the plant family Calceolariaceae
(2010-11-26)
Calceolaria L., Jovellana Ruiz & Pav., and Porodittia G. Don (=Stemotria Wettst. &
Harms) toghether constitute the family Calceolariaceae consisting of approximately
300 species distributed manily in South America. The ...
Effects of pharmaceuticals on natural microbial communities: Tolerance development, mixture toxicity and synergistic interactions
(2010-09-17)
Due to our extensive use of pharmaceuticals, low concentrations (picomol-nanomol/L) end up in the aquatic
environment. Antibiotics comprise a group of pharmaceuticals specifically designed to disrupt microbial ...
An evolutionary view of the taxonomy and ecology of Inocybe (Agaricales) with new perspectives gleaned from GenBank metadata
(2009-04-16)
Inocybe (Inocybaceae) is one of the most speciose genera among the gilled mushrooms (Agaricales) but large parts of its taxonomy and evolutionary history remain poorly explored. The present thesis shows that the traditional ...
Reproductive Biology and Population Genetics of Common Ash (Fraxinus excelsior L.)
(2011-03-17)
Common Ash, Fraxinus excelsior L. (Oleaceae) is a wind-pollinated, wind-dispersed, deciduous tree, commonly occurring throughout Central and Northern Europe. The thesis addresses several questions concerning reproductive ...
On Toxicant-Induced Succession in Periphyton Communities: Effects of Single Chemicals and Chemical Mixtures
(2009-02-27)
This thesis deals with the effects of single chemicals and chemical mixtures on biological communities. Ecosystems are exposed to complex mixtures of chemicals, and because combination effects can occur, it is necessary ...
Carbon stock and fluxes in Nyungwe forest and Ruhande Arboretum in Rwanda
(2009-11-20)
Conservation and sequestration of carbon in forest ecosystems are potential strategies to reduce or stabilize the atmospheric greenhouse gas concentrations and mitigate climate change. Estimating the degree to which forest ...