, Volume 68, Issue 3, pp 157–168

The demography of the annual halophyte Spergularia marina on a baltic seashore meadow

  • Peter Torstensson

DOI: 10.1007/BF00114716

Cite this article as:
Torstensson, P. Vegetatio (1987) 68: 157. doi:10.1007/BF00114716


The survivorship and reproduction of the annual halophyte Spergularia marina was studied during four years on three different sites on a Baltic seashore meadow. The survivorship showed variation both between years and between sites. The mortality rate was not density-dependent in spite of very high densities in some years. At two of the sites the seed output was related to density, but individuals differed in their reproductive capacity. Limitation of the flower production was the main reason for this difference. At the third site the length of the flowering season determined the reproductive output.


Annual plant Baltic Demography Reproduction Seashore meadow Spergularia marina Survivorship 

Copyright information

© Dr W. Junk Publishers 1987

Authors and Affiliations

  • Peter Torstensson
    • 1
  1. 1.Department of Botany, Section of Plant EcologyUniversity of StockholmStockholmSweden