Caracterization of Scaptotrigona mexicana pot-pollen from Veracruz, Mexico

Periodo de realización: 2018/06/01 al 2018/01/01

Tipo: Capítulo de libro

Lugar(es) de estudio: Veracruz, México
Resumen: "Scaptotrigona mexicana is the least aggressive stingless bee among the Scaptotrigona in Mexico. Pollen is the main food for young bees, and it may contain 10–40% protein, depending on environmental and biological factors. Foragers harvest pollen from plant flowers by scraping or licking it up from the anther and then stick it together, on the corbicula, using nectar. Pot-pollen samples produced by Scaptotrigona mexicana, in managed hives located in three different sites in central Veracruz, Mexico, were subjected to morphological pollen analysis, following the protocol described by Erdtman (1969). In the palynological analysis, we found 11 floral types in Cañada Blanca and 13 each in Manuel León and Fortín de las Flores. In Cañada Blanca, with 33.4% of all floral types, Heliocarpus (Malvaceae, Grewioideae) was the most abundant, followed by Bursera simaruba (Burseraceae) with 15.8%. In Manuel León, with nearly 20% of all floral types, Chamaecrista (Fabaceae, Caesalpinioideae) and Parthenium fruticosum (Asteraceae) exhibited higher presence than the others. Finally, in Fortín de las Flores, Verbesina (Asteraceae), with 22.7%, and Solanum (Solanaceae), with 16.6%, were the most abundant. In general, it seemed that there were no large differences among plant species foraged by S. mexicana in central Veracruz. After the palynological analysis, we were able to demonstrate that the plant families providing the most pollen were Tiliaceae and Burseraceae in Cañada Blanca, Fabaceae and Asteraceae in Manuel León, and Solanaceae and Asteraceae in Fortín de las Flores."

Información de ECOSUR