Sex Allocation Ratio in a Wind‐Pollinated Self‐Incompatible Monoecious Tree, Alnus firma Sieb. et Zucc. (Betulaceae)

NORIAKI MURAKAMI, MASAYUKI MAKI

研究成果: Article査読

14 被引用数 (Scopus)

抄録

Abstract Biomass sex allocation of Alnus firma, a wind‐pollinated self‐incompatible monoecious tree species, was directly measured at the inflorescence (prezygotic) stage. Sex allocation ratio at the fruit stage was estimated from the number of female inflorescences, percent fruit production, and the mean dry weight of a female inflorescence and a fruit catkin. Investment in male function far exceeds that in female function at the prezygotic stage. When the costs of fruit catkins and seeds were included in the estimation of female function, then the sex allocation bias was reversed towards female. Intrapopulational variation of the sex allocation ratio with respect to tree height and size was also investigated. A strong negative correlation was observed in both cases, although a positive relationship has been predicted by theorists and some previous empirical data have supported this prediction.

本文言語English
ページ(範囲)97-101
ページ数5
ジャーナルPlant Species Biology
7
2-3
DOI
出版ステータスPublished - 1992 12月
外部発表はい

ASJC Scopus subject areas

  • 生態、進化、行動および分類学
  • 生態学
  • 植物科学

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