tetragonisca angustula
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2024 ◽  
Vol 84 ◽  
Author(s):  
Â. C. O. Lima ◽  
E. R. Dias ◽  
I. M. A. Reis ◽  
K. O. Carneiro ◽  
A. M. Pinheiro ◽  
...  

Abstract The antioxidant activity of Tetragonisca angustula honey (TAH) and its ethanolic extract (TAEE) were investigated. The total levels of phenolic (TPC) and flavonoids (TFC) were also evaluated. The results for TPC were 19.91 ± 0.38 and 29.37 ± 1.82 mg GAE g-1 and for TFC 0.20 ± 0.02 and 0.14 ± 0.01 mg QE g-1 of TAH and TAEE, respectively. Antioxidant activities were 73.29 ± 0.49% and 93.36 ± 0.27% in the DPPH● assay and 71.73 ± 4.07% and 97.86 ± 0.35% in ABTS●+ for TAH and TAEE, respectively. The total reducing activity was determined by the method of reducing power (PR) and iron ion (Fe III) and the results varied in PR from 151.7 ± 25.7 and 230.7 ± 25.2 mg GAE L-1, for TAH and TAEE respectively and for (Fe III) in EC50 0.284 in TAEE and 0.687 in TAH. Chemical analysis by HPLC-DAD of the ethanolic extract (TAEE) revealed the presence of ferulic acid as majority phenolic component in the extract. The 1H NMR analysis confirmed this structure and showed the also presence of glucose, citric acid, succinic acid, proline and hydrocarbon derivatives. In addition, the botanical origin was also investigated and showed a multifloral characteristic, having found 19 pollen types with a botanical predominance of the Anacardiaceae family, with Tapirira pollen occurring as predominant (42.6%) and Schinus as secondary (25.7%). The results showed that T. angustula honey is an interesting source of antioxidant phenolic compounds due to its floral origin and can act as a protector of human health when consumed.


2023 ◽  
Vol 83 ◽  
Author(s):  
L. F. Silva ◽  
F. W. S. Silva ◽  
G. L. Demolin-Leite ◽  
M. A. Soares ◽  
P. G. Lemes ◽  
...  

Abstract Acacia auriculiformis A. Cunn. Ex Benth. (Fabaceae), a non-native pioneer species in Brazil with fast growth and rusticity, is used in restoration programs. Our goal was to assess during a 24-month survey the pattern of arthropods (phytophagous insects, bees, spiders, and predator insects) on the leaf surfaces of A. auriculiformis saplings. Fourteen species of phytophagous, two of bees and eleven of predators were most abundant on the adaxial surface. The values of the ecological indexes (abundance, diversity, and species richness) and the rarefaction, and k-dominance curves of phytophagous, bees and arthropod predators were highest on the adaxial leaf surface of A. auriculiformis. The k-dominance and abundance of Aleyrodidae (Hemiptera) (both leaf surfaces), the native stingless bee Tetragonisca angustula Latreille (Hymenoptera: Apidae) (both leaf surfaces) and the ant Brachymyrmex sp. (adaxial surface) and Pheidole sp. (Hymenoptera: Formicidae) (abaxial surface) were the highest between the taxonomic groups of phytophagous, bees, and predators, respectively on A. auriculiformis saplings. The ecological indexes and rarefaction, abundance, and k-dominance curves of phytophagous insects, bees, and predators were highest on the adaxial leaf surface. The preference of phytophagous insects for the adaxial leaf surface is probably due to the lower effort required to move on this surface. Understanding the arthropod preferences between leaf surfaces may help to develop sampling and pest management plans for the most abundant phytophagous insects on A. auriculiformis saplings. Also, knowledge on the preference pattern of bees and predators may be used to favour their conservation.


2024 ◽  
Vol 84 ◽  
Author(s):  
J. S. Lima ◽  
G. L. D. Leite ◽  
P. F. S. Guanabens ◽  
M. A. Soares ◽  
J. L. Silva ◽  
...  

Abstract Acacia mangium is a pioneer species with fast growth and frequently used in the recovery of degraded areas. The objectives were to evaluate insects and spiders, their ecological indices and interactions on A. mangium saplings in a tropical degraded area in recovering process. The experimental design was completely randomized with 24 replications, with treatments represented by the first and second years after A. mangium seedling planted. Numbers of leaves/branch, branches/sapling, and ground cover by A. mangium saplings, Hemiptera: Phenacoccus sp. and Pachycoris torridus; Hymenoptera: Tetragonisca angustula and Trigona spinipes, Brachymyrmex sp., Camponotus sp. and Cephalotes sp.; Blattodea: Nasutitermes sp. and Neuroptera: Chrysoperla sp.; abundance, species richness of pollinating insects, tending ants, and the abundance of Sternorrhyncha predators were greatest in the second year after planting. Numbers of Hemiptera: Aethalium reticulatum, Hymenoptera: Camponotus sp., Cephalotes sp., Polybia sp., T. angustula, T. spinipes, tending ants, pollinating insects, Sternorrhyncha predators and species richness of tending ants were highest on A. mangium saplings with greatest numbers of leaves or branches. The increase in the population of arthropods with ground cover by A. mangium saplings age increase indicates the positive impact by this plant on the recovery process of degraded areas.


Author(s):  
Anderson José Antonietti ◽  
Mário Cesar Sedrez

Diversos cientistas ao redor do mundo têm alertado sobre a diminuição das populações de abelhas devido às ações antrópicas, como o desmatamento e o uso de agrotóxicos. Preocupados com essa realidade local e mundial, a Fundação Jaraguaense de Meio Ambiente (FUJAMA) solicitou a elaboração do presente estudo em 2018, o qual teve como objetivo mapear e identificar as espécies de abelhas-sem-ferrão (ASF), na comunidade do entorno e na Área de Preservação Permanente (APP) do IFSC Campus Jaraguá do Sul-Rau. Para isso, foram confeccionados e instalados ninhos- isca em troncos de árvores de grande porte, à sombra, na APP do câmpus e na área do entorno, em casa de vizinhos da comunidade, sendo inspecionados semanalmente. As espécies de ASF que nidificaram nas iscas foram identificadas e entre 45 e 60 dias, após as capturas, os enxames eram transferidos dos ninhos-isca para as caixas racionais, dando início à estruturação de um meliponário modelo. Foram identificadas três espécies de ASF no entorno, a Jataí (Tetragonisca angustula), a Mirim-guaçu-amarela (Plebeia remota rufis) e a Mirim-droryana (Plebeia droryana). A participação da FUJAMA e os resultados obtidos são um indicativo à realização de futuras ações de extensão, visando a conservação de ASF e a introdução da atividade de meliponicultura na comunidade.http://dx.doi.org/10.35700/ca.2021.ano8n15.p42-51.2929


Author(s):  
Ângela C. de O. Lima ◽  
Rodrigo S. Conceição ◽  
Luciana S. Freitas ◽  
Carlos A. L. de Carvalho ◽  
Antônio L. da S. Conceição ◽  
...  

2021 ◽  
Author(s):  
Leonardo Regnier

AbstractTetragonisca angustula is a very important stingless bees species. This study aimed to report the resin gathering behaviour of this species of a possible new resin source: Schizolobium parahyba. Evaluations of temperature, number of bees in gathering activity, time and season were used to characterize bee’s behaviour. Resin gathering activities were concentered between 10 and 14 hours, with a moderate linear positive correlation index with the temperature. No bee activity was observed when temperatures were below 16.69°C. Gathering suffered extreme reduction during winter and greater activity in summer. Bees exploration were concentered on the younger leafs and apical portion of S. parahyba. Older leafs were mainly ignored, and gradually the exploring activity was constantly migrating to most young parts, while apical exploration was consistent all the studied period.


Author(s):  
Anderson José Antonietti ◽  
Mário Cesar Sedrez

Diversos cientistas ao redor do mundo têm alertado sobre a diminuição das populações de abelhas devido às ações antrópicas, como o desmatamento e o uso de agrotóxicos. Preocupados com essa realidade local e mundial, a Fundação Jaraguaense de Meio Ambiente (FUJAMA) solicitou a elaboração do presente estudo em 2018, o qual teve como objetivo mapear e identificar as espécies de abelhas-sem-ferrão (ASF), na comunidade do entorno e na Área de Preservação Permanente (APP) do IFSC Campus Jaraguá do Sul-Rau. Para isso, foram confeccionados e instalados ninhos- isca em troncos de árvores de grande porte, à sombra, na APP do câmpus e na área do entorno, em casa de vizinhos da comunidade, sendo inspecionados semanalmente. As espécies de ASF que nidificaram nas iscas foram identificadas e entre 45 e 60 dias, após as capturas, os enxames eram transferidos dos ninhos-isca para as caixas racionais, dando início à estruturação de um meliponário modelo. Foram identificadas três espécies de ASF no entorno, a Jataí (Tetragonisca angustula), a Mirim-guaçu-amarela (Plebeia remota rufis) e a Mirim-droryana (Plebeia droryana). A participação da FUJAMA e os resultados obtidos são um indicativo à realização de futuras ações de extensão, visando a conservação de ASF e a introdução da atividade de meliponicultura na comunidade.


Author(s):  
Anderson José Antonietti ◽  
Mário Cesar Sedrez

Diversos cientistas ao redor do mundo têm alertado sobre a diminuição das populações de abelhas devido às ações antrópicas, como o desmatamento e o uso de agrotóxicos. Preocupados com essa realidade local e mundial, a Fundação Jaraguaense de Meio Ambiente (FUJAMA) solicitou a elaboração do presente estudo em 2018, o qual teve como objetivo mapear e identificar as espécies de abelhas-sem-ferrão (ASF), na comunidade do entorno e na Área de Preservação Permanente (APP) do IFSC Câmpus Jaraguá do Sul-Rau. Para isso, foram confeccionados e instalados ninhos- isca em troncos de árvores de grande porte, à sombra, na APP do câmpus e na área do entorno, em casa de vizinhos da comunidade, sendo inspecionados semanalmente. As espécies de ASF que nidificaram nas iscas foram identificadas e entre 45 e 60 dias, após as capturas, os enxames eram transferidos dos ninhos-isca para as caixas racionais, dando início à estruturação de um meliponário modelo. Foram identificadas três espécies de ASF no entorno, a Jataí (Tetragonisca angustula), a Mirim-guaçu-amarela (Plebeia remota rufis) e a Mirim-droryana (Plebeia droryana). A participação da FUJAMA e os resultados obtidos são um indicativo à realização de futuras ações de extensão, visando a conservação de ASF e a introdução da atividade de meliponicultura na comunidade.


2021 ◽  
Author(s):  
Kaitlin M. Baudier ◽  
Meghan M. Bennett ◽  
Meghan Barrett ◽  
Frank J. Cossio ◽  
Robert D. Wu ◽  
...  

Individual heterogeneity within societies provides opportunities to test hypotheses about adaptive neural investment in the context of group cooperation. Here we explore neural investment in defense specialist soldiers of the eusocial stingless bee (Tetragonisca angustula) which are age sub-specialized on distinct defense tasks, and have an overall higher lifetime task repertoire than other sterile workers within the colony. Consistent with predicted behavioral demands, soldiers had higher relative visual (optic lobe) investment than non-soldiers but only during the period when they were performing the most visually demanding defense task (hovering guarding). As soldiers aged into the less visually demanding task of standing guarding this difference disappeared. Neural investment was otherwise similar across all colony members. Despite having larger task repertoires, soldiers had similar absolute brain size and smaller relative brain size compared to other workers, meaning that lifetime task repertoire size was a poor predictor of brain size. Together, our results are consistent with the specialized but flexible defense strategies of this species, broadening our understanding of how neurobiology mediates age and morphological task specialization in highly cooperative societies.


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