Results 21 to 30 of about 8,102 (218)

Revision of the species of Melipona of the fuliginosa group (Hymenoptera, Apoidea, Apidae, Meliponini) [PDF]

open access: yes, 2008
Três espécies são reconhecidas: Melipona (Michmelia) fuliginosa Lepeletier, 1836, de larga distribuição, do Suriname e Guiana Francesa até o sudeste do Brasil e noroeste da Argentina, M.
CAMARGO, João M. F.   +1 more
core   +2 more sources

Tragedy of the commons in Melipona bees [PDF]

open access: yesProceedings of the Royal Society of London. Series B: Biological Sciences, 2004
In human society selfish use of common resources can lead to disaster, a situation known as the 'tragedy of the commons' (TOC). Although a TOC is usually prevented by coercion, theory predicts that close kinship ties can also favour reduced exploitation. We test this prediction using data on a TOC occurring in Melipona bee societies.
Wenseleers, Tom, Ratnieks, Francis L.W.
openaire   +3 more sources

Cytogenetic analysis of the Amazon stingless bee Melipona seminigra merrillae reveals different chromosome number for the genus

open access: yesScientia Agricola, 2011
Cytogenetic analysis of the Amazon stingless bee Melipona seminigra merrillae, by conventional Giemsa staining and C-banding, revealed a different chromosome number for Melipona: 2n = 22 for females and diploid drones while the haploid drones present n =
Izaura Bezerra Francini   +3 more
doaj   +1 more source

Studies of the biological and therapeutic effects of argentine stingless bee propolis [PDF]

open access: yes, 2018
Meliponids are native bees of the Americas, characterized by having no sting (ANSA). Some live in the Yunga forests of northern Argentina, a place rich in a diversity of this type of bees of which at least thirty-three species may be found. Propolis is a
Brodkiewicz, Ivana Yanina   +5 more
core   +1 more source

Valor nutricional do mel e pólen de abelhas sem ferrão da região Amazônica Nutricional value of honey and pollen of stingerless bees of the Amazonian region

open access: yesActa Amazonica, 2004
Avaliou-se os constituintes nutricionais de amostras do mel e pólen das espécies Melipona seminigra merrillae (jandaíra), Melipona compressipes manaosensis (jupará), Melipona rufiventris paraensis (uruçu boca de ralo), provenientes do meliponário da ...
Rosa Cristina da Silva Souza   +3 more
doaj   +1 more source

DNA barcoding reveals long-term speciation processes in subspecies of the Melipona (Michmelia) seminigra complex (Hymenoptera: Apidae)

open access: yesEuropean Journal of Entomology, 2022
The stingless bee Melipona (Michmelia) seminigra Friese is a polytypic species widely distributed in Brazilian Amazon and Bolivia. Seven subspecies are recognized, four are described, which inhabit mutually exclusive areas in the Amazon basin, although ...
Izaura Bezerra FRANCINI   +6 more
doaj   +1 more source

Physicochemical parameters of Amazon Melipona honey [PDF]

open access: yesQuímica Nova, 2007
Stingless bees produce a honey that is different from the Apis honey in terms of composition. There aren't enough data to establish quality control parameters for this product, mainly due to lack of research results. The aim of this work is to evaluate some physicochemical parameters that can be used for the characterization and for the quality control
Almeida-Muradian, Ligia Bicudo de   +2 more
openaire   +4 more sources

Tragedy of the commons in Melipona bees revisited [PDF]

open access: yesBiology Letters, 2022
Melipona stingless bees display a paradoxical overproduction of queens, which are later eliminated by nest-mate workers. Mechanistically, it was suggested that the monoterpenoid geraniol deposited into newly provisioned cells by adult bees would cause larvae to develop into queens in Melipona beecheii ...
Ricardo Caliari Oliveira   +5 more
openaire   +2 more sources

Differentially displayed expressed sequence tags in Melipona scutellaris (Hymenoptera, Apidae, Meliponini) development

open access: yesAnais da Academia Brasileira de Ciências, 2006
We have compared gene expression, using the Differential Display Reverse Transcriptase - Polymerase Chain Reaction (DDRT-PCR) technique, by means of mRNA profile in Melipona scutellaris during ontogenetic postembryonic development, in adult worker, and ...
Flávia A. Santana   +6 more
doaj   +1 more source

Flight activity of Melipona asilvai Moure (Hymenoptera: Apidae) [PDF]

open access: yesBrazilian Journal of Biology, 2006
Many stingless bee species are specific to their areas of occurrence. Even when adapted to their local climate and flora conditions, they are subject to modifications in the environment, directly influencing flight activity. The aim of this work is to obtain information about the flight activity of the stingless bee Melipona asilvai Moure, thus ...
Souza, B. A.   +2 more
openaire   +5 more sources

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