1 Table of Contents: “... Habitats -- 10 Protozoan Communities: Terrestrial Habitats -- 11 Symbiotic Protozoa -- 12 Concluding...”

2 “..., and symbiotic associations of algae. By combining molecular, morphological and ecological data, he aims...”

3 “... (symbiotic associations of a fungi with green algae or cyanobacteria), which can be found in most running...”

4 Table of Contents: “...) Biological aspects of symbiotic nitrogen fixation -- C. Der gebundene Stickstoff -- a) Herkunft und Vorkommen...”