Marcos Pereira Lopes

TL;DR: Even at very low concentrations, the spinosad formulation was toxic to the vital organs midgut and Malpighian tubules and adversely affected walking behavior, providing new insights into the debate about the role of bioinsecticides in the mortality of Africanized honey bees.

TL;DR: It is demonstrated that spinosad negatively affects individual survival, general group activity and the midgut epithelium of P. helleri and the brain, on the other hand, did not present significant alterations under the tested conditions.

TL;DR: In this article, the authors evaluated both lethal and sub-lethal effects of CuSO4 on the stingless bee Partamona helleri, and found that the ingestion of increasing concentrations of CuS4 resulted in altered walking behavior and damage to the midgut epithelium and peritrophic matrix of bees.

TL;DR: This study describes the morphology and morphometry of the midgut in F. schrottkyi forager workers contributing to the comprehension of the digestive process of this bee.

TL;DR: The changes that occur in the midgut during metamorphosis of Partamona helleri, a species of stingless bees found in Neotropical regions, are described to contribute to a better understanding of morphogenesis of the stingless bee digestive system.