Sex ratios in dioecious Rumex tuberosus populations along a successional gradient

Leoš Klimeš 1

Affiliations

  1. Department of Plant Ecology, Institute of Botany, Academy of Sciences of the Czech Republic, Dukelská 145, CZ-379 82 Třeboň, Czech Republic
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Abstract

Sex ratio in dioecious Rumex tuberosus populations was studied in the Ropotamo National Park, Bulgaria, on sixteen plots, differing in their successional stage. Females prevailed in all populations (P<0.05), except one with equal ratio, which colonizes an early successional stage. The female-biased sex ratio increased in closed-canopy vegetation reaching its maximum in the woods. Possible causes of female dominance are discussed.

Keywords

Polygonaceae, Rumex tuberosus, dioecy, sex ratio, succession

How to cite

Klimeš L. (1993) Sex ratios in dioecious Rumex tuberosus populations along a successional gradient. – Preslia 65: 335–340