Results 91 to 100 of about 8,044 (211)

Comparative molecular cytogenetics in Melipona Illiger species (Hymenoptera, Apidae)

open access: yesSociobiology, 2018
Cytogenetic studies in Melipona are scarce with only 24 species analyzed cytogenetically. Of these, six species had the rDNA sites physically mapped and characterized by Fluorescent in situ Hybridization (fish).
Vanderly Andrade-Souza   +5 more
doaj   +1 more source

The deposition of anal excretions by Melipona favosa foragers (Apidae: Meliponinae): behavioural observations concerning the location of food sources [PDF]

open access: yes, 2000
Melipona favosa consistently deposited anal excretions while foraging. Anal depositions were released more frequently and by more bees on artificial food sources at a greater distance from the nest.
Aguilar, I. (Ingrid), Sommeijer, M.J.
core   +1 more source

Oxidative Photochemical Cyclisations to Access Spiroketals

open access: yesAdvanced Synthesis &Catalysis, Volume 366, Issue 22, Page 4694-4701, November 19, 2024.
Abstract The spiroketal moiety is an important substructure within many biological natural products. One method to access them is via the oxidative cyclisation of a pendant hydroxyl group on to a pre‐formed pyran. However applications of this methodology have been severely limited by requiring the use of toxic oxidants, such as lead (IV) tetraacetate ...
Jonathan Trevorrow   +4 more
wiley   +1 more source

Physicochemical characteristics of pollen collected by Amazonian stingless bees

open access: yesCiência Rural, 2016
: The purpose of this study was to determine the physicochemical characteristics of pollen collected by the Amazonian stingless bees Melipona seminigra and Melipona interrupta , in order to verify whether their characteristics meet the physicochemical ...
Kemilla Sarmento Rebelo   +2 more
doaj   +1 more source

Ontogeny and Systematics of the Genus \u3ci\u3eCerophagus\u3c/i\u3e (Acari: Gaudiellidae), Mites Associated With Bumblebees [PDF]

open access: yes, 2017
Nymphs and adults of Cerophagus nearcticus n. sp. are described from the nest of Bombus terricola occidentalis in California and phoretic associations with B. impatiens in Michigan and New York.
OConnor, Barry M
core   +2 more sources

Genome‐Wide Development and Characterization of Microsatellite Markers in the Great Web‐Spinning Sawfly Acantholyda posticalis

open access: yesEcology and Evolution, Volume 14, Issue 11, November 2024.
Acantholyda posticalis is notorious for causing serious damage to Pinus forests across the Palearctic region. Through genome‐wide searching, manual screening, and amplification trial, 56 microsatellite markers were developed for A. posticalis. Our study is the first to develop SSR markers for insects in family Pamphiliidae, representing an initial step
Mengfei Liu   +6 more
wiley   +1 more source

Wing buzzing as a mechanism for generating vibrational signals in psyllids (Hemiptera: Psylloidea)

open access: yesInsect Science, Volume 31, Issue 5, Page 1466-1476, October 2024.
Employing simultaneous direct observation of wing movements with a high‐speed camera and recording with a laser vibrometer, we did not find support for the hypothesis that psyllids generate vibrational signals with stridulation. Instead, the spectral and temporal composition of the signals are consistent with simple wing buzzing (i.e., tremulation ...
Jernej Polajnar   +3 more
wiley   +1 more source

Evidence of hybridization between two species of Melipona bees

open access: yesGenetics and Molecular Biology, 2000
This report describes a case of hybridization between two species of Meliponinae bees (Melipona scutellaris from the Diamantina plateau in the State of Bahia, and Melipona capixaba from around Domingos Martins, in the State of Espírito Santo, Brazil). To
Vania Alves Nascimento   +2 more
doaj   +1 more source

Munduri (Melipona asilvai): a abelha sestrosa. [PDF]

open access: yes, 2017
Características e importância do gênero melipona; A Munduri - habitat; Hábitos de nidificação; Arquitetura do ninho; Materiais utilizados para construção do ninho; População e comportamento defensivo; Instalação do meliponário; Caixa para criação ...
ALVES, R. M. de O.   +4 more
core   +1 more source

Wing Phenotypic Diversity in Stingless Bees Genera (Apidae: Meliponini) from Ecuador Amazonia

open access: yesActa Biológica Colombiana
Native stingless bees, Meliponini, are the only social bees that produce honey in addition to honeybees. These bees have been managed in meliponiculture and for crop pollination.
Karen Vanessa Bonilla Farinango   +2 more
doaj   +1 more source

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