SciELO - Scientific Electronic Library Online

 
vol.22 issue2Spatial Analysis of Diseases Incidence in Different Cocoa Genotypes (Theobroma cacao L.) in Yopal (Casanare), ColombiaLiver Melanomacrophages and Gluthation S-Transferase Activity in Leptodactylus chaquensis (Anura, Leptodactylidae) as Biomarkers of Oxidative Stress Due to Chlorpyrifos Exposition author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Acta Biológica Colombiana

Print version ISSN 0120-548X

Abstract

NUNEZ AVELLANEDA, Luis Alberto  and  CARRENO, Javier Isnardo. Bee pollination in Syagrus orinocensis (Arecaceae) in the Colombian Orinoquia. Acta biol.Colomb. [online]. 2017, vol.22, n.2, pp.221-233. ISSN 0120-548X.  https://doi.org/10.15446/abc.v22n2.58925.

ABSTRACT The pollination ecology of the Syagrus orinocensis was studied in the course of three consecutive yearly flowering seasons in a foothill forest in Casanare, Colombian Orinoco region. Syagrus orinocensis palms grow up to 10 m high and produce one to four bisexual, occasionally unisexual, inflorescences. The bisexual inflorescences bear staminate and pistillate flowers arranged in triads, whereas the unisexual inflorescences carry only staminate flowers in dyads. The inflorescences are protandric and open during daytime, remaining active for 26 days. The male phase extends for the first 15 days, which are followed by 8 days of an inactive phase; the pistillate phase lasts up to three days. The inflorescences of S. orinocensis were visited by 43 species of insects belonging to the orders Coleoptera, Hymenoptera and Diptera. The presence of anthophilous insects was primarily restricted to the male phase of anthesis, during which the visitors searched for pollen and breeding sites; those which visited inflorescences during the female phase seeked out nectar. The most effective pollinators of S. orinocensis were stingless bees (Apidae, Meliponini), as they transferred in average 83% of the pollen that reached receptive inflorescences. The presence, constancy and efficiency of stingless bees during this study constitute solid evidence of melittophily in S. orinocensis and allows us to propose criteria to redefine this pollination syndrome in Neotropical wild palms.

Keywords : Arecaceae; mellitophilia; pollinators efficient; pollination syndrome.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License