Effects of abiotic factors on the foraging activity of Apis mellifera Linnaeus, 1758 in inflorescences of Vernonia polyanthes Less (Asteraceae)
Knowledge on the foraging activity of Apis mellifera under the influence of abiotic factors has not been fully elucidated. Knowing the interactions between bees and plants with beekeeping relevance is fundamental to develop management strategies aimed at improving the beekeeping productivity. In thi...
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Veröffentlicht in: | Acta scientiarum. Animal sciences 2015-10, Vol.37 (4), p.405-409 |
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Zusammenfassung: | Knowledge on the foraging activity of Apis mellifera under the influence of abiotic factors has not been fully elucidated. Knowing the interactions between bees and plants with beekeeping relevance is fundamental to develop management strategies aimed at improving the beekeeping productivity. In this way, this study aimed to determine the foraging schedule of A. mellifera and to assess the influence of environmental factors on the foraging on inflorescences of Vernonia polyanthes. The study was conducted in the rural area of Valenga, Rio de Janeiro State. Visits of A. mellifera workers to V. polyanthes inflorescences occurred from 9 am to 4 pm, especially between 11 am and 3 pm. Among the abiotic variables, relative humidity (rs = -0.691; p < 0.0001) and temperature (rs = 0.531; p < 0.0001) were correlated with foraging activity. Increase in temperature and decrease in humidity resulted in increased frequency in bee foraging activity, accounting for 46.9% of the activity in A. mellifera. This study provides subsidies to the development of apiculture, emphasizing the importance of V. polyanthes as a food resource during winter, representing a good alternative to increase the productivity, especially in areas of grasslands or abandoned crops, where 'Assa-peixe' is abundant. Keywords: beekeeping, abiotic factors, Africanized honeybees, Assa-peixe. O conhecimento das atividades de forrageio de Apis mellifera sob a influencia dos fatores abioticos ainda nao esta completamente elucidado. Conhecer as interagoes entre abelhas e plantas de importancia apicola e fundamental para o desenvolvimento de metodologias de manejo, que visem a produtividade e desenvolvimento da apicultura. Sendo assim, este trabalho tem como objetivo conhecer o horario de forrageio de A. mellifera e avaliar a influencia dos fatores ambientais sobre o forrageio nas inflorescencias de Vernonia polyanthes. O estudo foi conduzido em uma area rural da cidade de Valenga, Estado do Rio de Janeiro. As visitas das operarias de A. mellifera as inflorescencias de V. polyanthes ocorreram das 9 as 16 h, com maior atividade entre 11 e 15 h. Dos fatores abioticos estudados, umidade relativa do ar (rs = -0,691; p < 0,0001) e temperatura (rs = 0,531; p < 0,0001) se correlacionaram com a atividade forrageadora. O aumento da temperatura e diminuigao da umidade aumentou a frequencia no forrageio das abelhas, sendo responsaveis por 46,9% da atividade de A. mellifera. Este trabalho fornece subsidios para o desenv |
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ISSN: | 1806-2636 1807-8672 1807-8672 |
DOI: | 10.4025/actascianimsci.v37i4.27463 |