Pollen analysis of honey reveals information about bee–plant interactions and networks that, in some cases, are lost through mere observation of bees on flowers. This information on bee–plant interactions is valuable for the protection of bees and vegetal species and pollination of crop plants. To provide insights into bee–plant interactions, palynological evidence was developed from the collection of honey. The objective of this study is to determine the plants that the bees (Tetragonisca fiebrigi) visit for honey production in southern Brazil (Rio Grande do Sul). For this, 24 honey samples were collected from five regions of northeastern Rio Grande do Sul, southern Brazil. A total of 64 pollen types were found in the honey samples from T. fiebrigi in southern Brazil, mainly from trees. The most common pollen types in the samples were from Schinus terebinthifolia, Schizolobium parahyba, Handroanthus sp., Morus nigra, and Rosa cf. grandiflora. The pollen grains show a high diversity of plants, including those with important ecological functions.
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11 March 2025
Bee–Plant Interactions Identified by Pollen Analysis of Honey from the Stingless Bee Tetragonisca fiebrigi (Schwarz, 1938) in Southern Brazil
Jefferson Nunes Radaeski,
Jaqueline Borger
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Palynology
Vol. 49 • No. 2
May 2025
Vol. 49 • No. 2
May 2025
floral origin
melissopalynology
pollen grains
pollination
Rio Grande do Sul
