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Stingless bees and mass flowering trees in the canopy of Atlantic Forest: a tight relationship Acta Botanica
Ramalho,Mauro.
This study demonstrates that stingless bees (Apidae, Hymenoptera) amount to approximately 70% of all bees foraging on flowers in the Brazilian Tropical Atlantic Rainforest. They also are the unique bee group concentrated in the upper stratum. It is hypothesized that this vertical distribution is a result of an uneven distribution of preferred floral resources within the forest strata. In the upper stratum, most of the trees that are highly visited by stingless bees produce small, inconspicuous, generalized flowers, clustered in dense inflorescences (mass flowering). These trees represent only 15% of the total melittophilous flora in the study area (96 plant species). In contrast, they attracted all 17 stingless bee species and more than 70% of all...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Stingless bees; Forest canopy; Foraging stratification; Mass flowering; Atlantic forest.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062004000100005
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Variation in daily flight activity and foraging patterns in colonies of uruçu - Melipona scutellaris Latreille (Apidae, Meliponini) Zoologia
Pierrot,Leonardo Monteiro; Schlindwein,Clemens.
The flight activities of five colonies of Melipona (Michmelia) scutellaris Latreille, 1811 kept among mixed fruit crop plantations in within fragments of Atlantic Rainforest in Pernambuco, NE-Brazil was examined. The daily deployment of foragers to collect pollen, nectar, resin and mud was observed. The colonies performed between 2,640 and 14,250 flights per day. Variations in the number of total daily flights were similar between colonies on all observation days. Proportional allocation of foragers to the different resources also among colonies showed similar variation. More than 90% of the pollen collection flights were made early in the morning. Nectar was collected in similar proportional frequencies with a reduction in activity at noon. On a single...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Apoidea; Foraging behavior; Northeastern Brazil; Stingless bees.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000400001
Registros recuperados: 42
Primeira ... 123 ... Última
 

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