Differences in flowering sex ratios between native and invasive populations of the seagrass Halophila stipulacea

Hung Manh Nguyen, Periklis Kleitou, Demetris Kletou, Yuval Sapir, Gidon Winters

Research output: Contribution to journalArticlepeer-review

Abstract

Deviations from the 1:1 sex ratio are common in dioecious plants. The tropical seagrass Halophila stipulacea is among an extremely rare group of dioecious plants that are widely recognized as female-biased. Here we report on differences in sex ratios between native (Eilat, northern Red Sea) and invasive (Cyprus, Mediterranean Sea) populations. While H. stipulacea populations were female-biased in their native region, invasive populations were either male-or female-biased. The existence of both sexes simultaneously in the Mediterranean invasive populations might help its ongoing expansion in the Mediterranean, thereby threatening local seagrasses species.

Original languageEnglish
Pages (from-to)337-342
Number of pages6
JournalBotanica Marina
Volume61
Issue number4
DOIs
StatePublished - 26 Jul 2018

Keywords

  • Halophila stipulacea
  • flowers
  • invasive
  • sex-ratio bias
  • sexual reproduction

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