Original paper

A comment on the proper use of nutrient ratios in microalgal ecology

Sommer, Ulrich

Archiv für Hydrobiologie - Hauptbände Volume 146 Number 1 (1999), p. 55 - 64

37 references

published: Sep 16, 1999

DOI: 10.1127/archiv-hydrobiol/146/1999/55

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Abstract

Repeatable species dominance patterns across nutrient ratio gradients are found both in culture competition experiments and in natural waters. However, the mechanisms behind these similar patterns need not to be identical. In chemostat experiments, such patterns are caused by the two-way competitive interactions between contemporaneously occurring organisms. Nutrient competition may be important in situ too, but there is an additional effect of early successional species influencing the nutrient environment for later successional species, without being influenced themselves by their successors.

Keywords

speciespatternschemostat experimentsnutrient competition