Distribution, ecology and biology of Sparganium hyperboreum (Typhaceae) in Western Siberia

Abstract

Geographical analysis has shown that Sparganium hyperboreum is most widespread in the forest-tundra and in the subarctic tundra subzone. In Western Siberia, this species grows in low and slightly mineralized and slightly acidic/neutral/slightly alkaline cool waters with fluctuating water level. It forms both monodominant communities (Sparganietum hyperborei purum association), and communities in which it is an edificator. In the southern tundra, S. hyperboreum is often found in anthropogenically transformed water bodies and man-made reservoirs. The species is characterized by high vegetative mobility and ecological plasticity with four ecological forms, depending on the depth of growth. Along with this, S. hyperboreum is characterized by only one life form.

Keywords

• bur-reed
• morphology
• life form
• seed productivity
• area
• phytocenology