Diurnal palm pollination by mystropine beetles: is it weather-related?

详细信息    查看全文

• 作者：L. A. Nú?ez ; R Bernal and J. T. Knudsen
• 关键词：Arecaceae ; Attalea allenii ; diurnal periodicity ; floral scent ; Mystrops ; pollination ecology ; thermogenesis ; Wettinia quinaria
• 刊名：Plant Systematics and Evolution
• 出版年：2005
• 出版时间：August 2005
• 年：2005
• 卷：254
• 期：3-4
• 页码：149-171
• 全文大小：342 KB
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Plant Sciences
  Plant Ecology
  Plant Anatomy and Development
  Plant Systematics/Taxonomy/ Biogeography
  
• 出版者：Springer Wien
• ISSN：1615-6110

文摘

We studied pollination ecology of the sympatric palms Attalea allenii and Wettinia quinaria in a tropical rain forest in Colombia. Attalea has a subterranean stem and Wettinia is tall and arboreal. Both species have thermogenesis and short anthesis, and their floral scents differ in chemical composition. Inflorescences of both palms are visited by beetles, bees and flies. Pollination is diurnal, and is effected mostly by two species of Mystrops (Nitidulidae: Nitidulinae: Mystropini) each of them specific to one palm species. Both palms share few visitors and no pollinators. Differences in scent composition probably cause this isolation. We contrast their diurnal pollination with nocturnal pollination of other palms by mystropines in Amazonia and elsewhere, and relate it to precipitation regimes. The diurnal anthesis of A. allenii and W. quinaria and the diurnal activity of their specific mystropines probably coevolved as a response to the high, predominantly nocturnal rainfall in the Chocó.