scholarly journals Pollen spectrum of honey of Apis mellifera L. and stingless bees (Hymenoptera: Apidae) from the semi-arid region of Bahia State, Brazil

Grana ◽  
2020 ◽  
Vol 59 (5) ◽  
pp. 377-388
Author(s):  
Polyana Carneiro dos Santos ◽  
Andreia Santos do Nascimento ◽  
Geni da Silva Sodré ◽  
Carlos Alfredo Lopes de Carvalho ◽  
Rogério Marcos de Oliveira Alves ◽  
...  
2020 ◽  
Vol 128 ◽  
pp. 108809 ◽  
Author(s):  
Flávia Helena Carvalho de Melo ◽  
Francisca Nayara Dantas Duarte Menezes ◽  
Janaína Maria Batista de Sousa ◽  
Marcos dos Santos Lima ◽  
Graciele da Silva Campelo Borges ◽  
...  

2010 ◽  
Vol 49 (3) ◽  
pp. 265-269 ◽  
Author(s):  
Luciene Xavier de Mesquita ◽  
Patrício Borges Maracajá ◽  
Sidnei Miyoshi Sakamoto ◽  
Benito Soto-Blanco

2020 ◽  
Vol 11 (3) ◽  
pp. 277-288
Author(s):  
Juliana Do Nascimento Bendini ◽  
Michelli Ferreira Dos Santos ◽  
Maria Carolina De Abreu ◽  
Gardner Andrade Arrais ◽  
Maria Mayara Vieira ◽  
...  

Considerando a educação ambiental como instrumento de transformação e uma prioridade entre as ações rumo ao desenvolvimento sustentável, o projeto de extensão universitária “Meliponário didático: uma estratégia para a conservação das abelhas sem ferrão no semiárido piauiense” visa a sensibilização de crianças e jovens, estudantes da educação básica do município de Picos e região, quanto à importância e conservação das abelhas nativas do semiárido piauiense. O presente artigo tem como objetivo relatar as ações e impactos do referido projeto desenvolvido na Universidade Federal do Piauí, em Picos. Para isso, descreveu-se o projeto a partir da consolidação do espaço de aprendizagem, desde a formação dos acadêmicos e monitores até a realização das visitas.  Os visitantes primeiramente assistem à uma aula, ministrada pelos próprios acadêmicos, sobre as abelhas e seguem para o Meliponário onde observam as abelhas em atividade. Durante as visitas a observação de algumas expressões espontaneamente pronunciadas pelos alunos, nos auxiliam a avaliar os impactos positivos do projeto para a conservação das abelhas nativas, como: “Professora, as abelhas são os cupidos da natureza!” De abril de 2018 a novembro de 2019 foram recebidos 560 visitantes da rede pública de ensino de Picos, de IES e de outros municípios. Considera-se que as ações educativas promovidas no Meliponário Didático da UFPI configuram estratégias eficazes e necessárias para a constituição de uma relação sustentável com as abelhas. Palavras-chave: Caatinga; Educação Ambiental; Meliponicultura; Biodiversidade   Didactic meliponary: University extension as a strategy for the conservation of stingless bees in the Piauí semiarid Abstract: Considering Environmental Education as an instrument of transformation and a priority among actions towards sustainable development, the university extension project "Didactic meliponary: a strategy for conservation of stingless bees in the semi-arid region of Piauí" aims to raise the awareness of children and young people, students of primary education in the municipality of Picos and region, regarding the importance and conservation of native bees in the semi-arid region of Piauí. This paper aimed to report the actions and impacts of the referred project developed at the Federal University of Piauí, in Picos, Piauí State, Brazil. The consolidation of the learning space and the training of the monitors to conduct the visits were described. Visitors first attend a class taught by the academics about bees and proceed to the meliponary ("Meliponário") to observe the active bees and their social structure. During the visits, expressions spontaneously pronounced by the students are noted, which helps us to assess the positive impacts of the project for the conservation of native bees. One of the expressions was: "Teacher, bees are nature's cupids!" From April 2018 to November 2019, 560 visitors from public schools in Picos, IES, and other municipalities were received. It is considered that the educational actions promoted at UFPI's Didactic Meliponary are an effective and necessary strategy for the constitution of a sustainable relationship with bees. Keywords: Caatinga; Environmental Education; Meliponiculture; Biodiversity


2015 ◽  
Vol 9 (30) ◽  
pp. 1806-1813 ◽  
Author(s):  
Martins Carneiro Pires Rosana ◽  
Goncalves de Moura Sinevaldo ◽  
das Chagas Cardoso Filho Francisco ◽  
Marques Monte Aline ◽  
Fernandes Pires Lucio ◽  
...  

2020 ◽  
Vol 327 ◽  
pp. 127041 ◽  
Author(s):  
Rosane da S. Sant'ana ◽  
Carlos Alfredo L. de Carvalho ◽  
Melissa Oda-Souza ◽  
Bruno de A. Souza ◽  
Fabio de S. Dias

2020 ◽  
Vol 59 (5) ◽  
pp. 1017-1026
Author(s):  
Fábio Barros Britto ◽  
Eliene Pereira de Oliveira ◽  
Sinevaldo Gonçalves de Moura ◽  
Jesuíno da Silva Costa Martins ◽  
André Felipe Barbosa Coelho de Resende ◽  
...  

2021 ◽  
Vol 34 (4) ◽  
pp. 895-903
Author(s):  
VANDERLEI DA SILVA OLIVEIRA ◽  
JOSÉ MONTEIRO DO NASCIMENTO JÚNIOR ◽  
RICARDO LANDIM BORMANN DE BORGES ◽  
LUCIENE CRISTINA LIMA E LIMA

ABSTRACT The aim of the present study was to determine the beekeeping potential of Croton heliotropiifolius Kunth (Euphorbiaceae) based on flowering strategy, floral characteristics, available floral resources, and the individuals frequencies and foraging activities of Apis mellifera L. on its flowers in Fazenda Ingazeira, Brazil. Each C. heliotropiifolius plant possessed inconspicuous diclinous flowers clustered into 560 ± 60 dense terminal inflorescences containing 59 ± 12 pistillate and 160 ± 26 staminate flowers. Although both types of flowers produced nectar (pistillate: 2.8 ± 0.8 μL ; staminate: 0.3 ± 0.06 μL ), A. mellifera workers mostly visited staminate flowers (98%) during the peak visitation period (08:00-11:00 h). Moreover, during the foraging period, each plant produced approximately 5.376 × 10 8 pollen grains, ensuring approximately 33 visitation cycles from a colony of A mellifera workers that picked up an average of 405 pollen grains per visit per flower. Further, C. heliotropiifolius showed an annual cornucopia flowering strategy with high flower production for five months, which is an important characteristic that ensures floral resource availability in the environment. These findings suggest that C. heliotropiifolius has a great potential for apiculture in this region.


Author(s):  
Takoua Ben Hlel ◽  
Feten Belhadj ◽  
Fatih Gül ◽  
Muhammed Altun ◽  
Ayşe Şahin Yağlıoğlu ◽  
...  

Background:: Luffa cylindrica is a plant that is widely distributed in Africa and Asia and it can be grown in regions with tropical or subtropical climates. Few patents dealt with Loofah biological properties, including some functional foods formulated from its leaves. Objective:: This study aimed to structurally and functionally characterize the bioactive compounds of L. cylindrica leaves grown in two different environments. Methods:: The extracts of L. cylindrica leaves collected from two Tunisian locations: Essouasi (LE), a semi-arid region and Medenine (LM) an arid region, were investigated for their phenolic compounds and fatty acids using HPLC/TOF-MS and GCMS techniques respectively. Furthermore, the antioxidant capacity was evaluated with DPPH, Chelating effect, Hydroxyl radical and Superoxide anion scavenging activities while the anticancer activity against HeLa cell lines was assessed using xCELLigence real time cell analyzer and lactate dehydrogenase cytotoxicity assay. Results:: The antiproliferative capacity of both extracts was time and dose-dependent with LE presenting the lowest HeLa cell index (CI = 0.035 ± 0.018, 250 μg/ml). LE also showed the best cytotoxic capacity (56.49 ± 0.8%) and antioxidant potential (IC50 = 54.41 ± 1.12 μg/ml for DPPH and 12.12 ± 0.07 μg/ml for chelating effet). 14 phenolic compounds were detected in LE with ferulic acid being the major compound (5128.5 ± 4.09 μg Phenols/g) while LM had only 6 phenolics. GCMS analysis showed the presence of omega-3 fatty acids in LE. Conclusions:: Our findings suggest that L. cylindrica leaves, especially when collected from semi-arid regions, are promising for formulating nutraceuticals of interest.


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