Results 111 to 120 of about 5,915 (222)

A New Alkenylphenol from the Propolis of Stingless Bee

open access: yesNatural Product Communications, 2018
A new alkenylphenol, 2-hydroxyl-6-(14' Z -nonadecenyl)benzoic acid (1), was isolated from the ethanolic extract of Vietnamese stingless bee propolis Trigona minor (Meliponini, Apidae), together with two known compounds (2 and 3).
Hai Xuan Nguyen   +6 more
doaj   +1 more source

Sistema automático de clasificación de abejas sin aguijón (Apidae: Meliponini) basado en el contorno y venación de sus alas [PDF]

open access: yes, 2015
Proyecto de Investigación. Código del proyecto: 5402-1701-0101El objetivo del proyecto, desarrollar un sistema automático de clasificación taxonómica de abejas sin aguijón nativas de Costa Rica, a partir del procesado digital de imágenes de sus alas, fue
Prendas-Rojas, Juan Pablo
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Interaction between bees and the flowers of Clethra scabra Person in the Araucaria Forest in Rio Grande do Sul State, Brazil

open access: yesPesquisa Agropecuária Gaúcha
Clethra scabra is a plant native to the Araucaria Forest of the Rio Grande do Sul State and provides food resources to flower visitors, however, it is threatened with extinction, and little is known about this interaction.
Sidia Witter   +4 more
doaj   +1 more source

Potencial produtivo de própolis com abelha sem ferrão Frieseomelitta varia. [PDF]

open access: yes, 2013
A própolis é um subproduto das abelhas, que consiste principalmente na mistura de resinas de origem vegetal, e que apresenta alto valor comercial. O uso de abelhas sem ferrão com potencial para a produção da própolis ainda é pouco explorado, devido à ...
CORDEIRO, H. K. C.   +2 more
core  

Socio-ecological factors associated with the productivity of Melipona beecheii (Meliponini) honey under different production systems in the Yucatan Peninsula, Mexico

open access: yesDiscover Sustainability
In the Yucatan Peninsula region, Mexico, meliponiculture or breeding of stingless bees has been practiced since pre-Hispanic times with a traditional production system (TPS), where bee colonies are housed in hollow logs called “hobone”.
Jesús F. Martínez-Puc   +6 more
doaj   +1 more source

Small Amazonian stingless bees: an opportunity for targeted cocoa pollination

open access: yesFrontiers in Bee Science
Cocoa (Theobroma cacao) is a multi-billion-dollar business. This tropical crop strongly depends on animal pollination for fruit development and seed production.
Camila Maia-Silva   +6 more
doaj   +1 more source

Food profitability and recruitment behaviour in a scent trail laying stingless bee (Scaptotrigona aff. depilis) [PDF]

open access: yes, 2008
Innerhalb der sozialen Insekten haben viele Gruppen die faszinierende Fähigkeit entwickelt, Nestgenossinnen zu rekrutieren. Rekrutierung beruht auf einer Kommunikation, die angewandt wird, um Mitglieder des Nestes zu einem bestimmten Ort zu bringen, wo ...
Barth, Friedrich G.   +2 more
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NEST FOUNDATION AND DIVERSITY OF MELIPONINI (HYMENOPTERA, APIDAE) IN AN URBAN AREA OF THE MUNICIPALITY OF JUIZ DE FORA, MG, BRAZIL

open access: yesBioscience Journal, 2006
During the period of March of 2000 to July of 2001, we monthly sensed new nests foundation of the Meliponini bees in an urban environment, Juiz de Fora, MG. The number of nests and substrata used for foundation was registered. The objective was to verify
Leonardo Almeida Sousa   +3 more
doaj  

Abelhas nativas sem ferrão (Meliponini) e serviços de polinização em espécies florestais. [PDF]

open access: yes, 2015
bitstream/item/121211/1/Doc.-264-Schuhli ...
MACHADO, A. M. B., SCHUHLI, G. S. e
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