FLORA APÍCOLA E NICHOS TRÓFICOS DE ABELHAS (HYM., APOIDEA) NA CHAPADA DIAMANTINA (LENÇÓIES-BA, BRASIL)

Resumo

This study presents the results of a survey of the bee plants and the bee community associated with them in the Chapada Diamantina, Lençois, Bahia State, Brazil. Samples of the bees visiting flowers were obtained during one year, each 15 days, in an area of savanna (cerrado) with "campo rupestre" elements. The results of bee plants, plant species predominantly visited, their phenology and trophic niche overlap and range for the different bee species are showed. A total of 1761 individuals belonging to 147 bee species were collected. Among these, 1708 individuals, belonging to 145 bee species were visiting the flowers of 81 plant species, from 32 plant families. The most visited families (up to 5% of visits) were; Leguminosae (Papilionoideae) (15.2% of total of visits), Compositae (10.2%), Leguminosae (Mimosoideae)(8.5%) Labiatae (8.0%), Ochnaceae (7.1%), Musaceae (6.4%), Rubiaceae (6.4%), Lythraceae(6.1%) and Boraginaceae (6.1%). The plant species predominantly visited were: Stylosanthes guianensis, Sauvagesia sprengelii, Musa sapientum, Cuphea impexa, Heliotropium angiospermum,Borreria sp, Marsypianthes chamaedrys. Mimosa pudica, Tagetes minuta, Ludwigia octovalis, Cajanus cajan, Calliandra angusta, Ocimun aff. gratissimum, Vellozia dasypus and Vantanea obovata. Pereirapis rhizophila, Apis mellifera, Trigona spinipes, Augochloropsis smithiana, Geotrigona mombuca and Bombus mono were the bee species with high diversity of plants visitedand of occurrence during the year. Furthermore, Bombus morio e Augochloropsis smithiana showed high values of overlap in the utilisation of trophic resources in the Chapada Diamantina.