Responses to climatic factors by foragers of Plebeia pugnax Moure (in litt.) (Apidae, Meliponinae)
Rev. bras. biol
; 61(2): 191-196, May 2001. graf, tab
Artigo
em Inglês
| LILACS
| ID: lil-298636
Biblioteca responsável:
BR1.1
RESUMO
Flight activity of Plebeia pugnax Moure (in litt.) was studied in six colonies coming from Cunha, SP, from July to October 1994. Twice a week, from 800 a.m. to 600 p.m., for 5 minutes every half-hour, all the bees entering and leaving the hives were counted. Six hundred counts were made and the materials that foragers carried were recorded. Data were analysed in relation to temperature, relative humidity, light intensity and day time. Foragers' flight activity was relatively constant in a wide range of temperature, from 22 C to 34 C. The minimum temperature for the beginning of flight activity was 14 C. Effective flight activity (when foragers of all colonies were leaving the hives) occurred at 15 C. These bees also flew within a wide range of relative humidity, from 30 percent to 100 percent, decreasing slowly after 50 percent. Flight activity increased as light intensity rose and it has also increased as the hours passed by, reaching a peak around midday and decreasing gradually afterwards. Pollen was collected all day long, while resin collection was relatively constant and debris transportation was slightly higher after 1000 h. From all known Plebeia species, this one flew on the lowest temperature ever registered for this genus
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Assunto principal:
Abelhas
/
Clima
/
Voo Animal
Limite:
Animais
Idioma:
Inglês
Revista:
Rev. bras. biol
Assunto da revista:
Biologia
Ano de publicação:
2001
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade de Säo Paulo/BR