Results 61 to 70 of about 3,106,667 (342)

Variation in honey bee gut microbial diversity affected by ontogenetic stage, age and geographic location [PDF]

open access: yes, 2015
Social honey bees, Apis mellifera, host a set of distinct microbiota, which is similar across the continents and various honey bee species. Some of these bacteria, such as lactobacilli, have been linked to immunity and defence against pathogens. Pathogen
Bunesova, Vera   +10 more
core   +6 more sources

Longevity extension of worker honey bees (Apis mellifera) by royal jelly: optimal dose and active ingredient [PDF]

open access: yesPeerJ, 2017
In the Western honey bee, Apis mellifera, queens and workers have different longevity although they share the same genome. Queens consume royal jelly (RJ) as the main food throughout their life, including as adults, but workers only eat worker jelly when
Wenchao Yang   +3 more
doaj   +2 more sources

Vitellogenin Underwent Subfunctionalization to Acquire Caste and Behavioral Specific Expression in the Harvester Ant Pogonomyrmex barbatus [PDF]

open access: yes, 2013
PMCID: PMC3744404This is an open-access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.
A Bourke   +75 more
core   +4 more sources

At the brink of eusociality: transcriptomic correlates of worker behaviour in a small carpenter bee

open access: yesBMC Evolutionary Biology, 2014
There is great interest in understanding the genomic underpinnings of social evolution, in particular, the evolution of eusociality (caste-containing societies with non-reproductives that care for siblings).

semanticscholar   +1 more source

Advancing Research on Biomaterials and Biological Materials with Scanning Electron Microscopy under Environmental and Low Vacuum Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel   +6 more
wiley   +1 more source

Care-giver identity impacts offspring development and performance in an annually social bumble bee

open access: yesBMC Ecology and Evolution, 2021
Background The developmental fates of offspring have the potential to be influenced by the identity of their care-givers and by the nature of the care that they receive.
Claudinéia P. Costa   +5 more
doaj   +1 more source

Chemoreceptor Evolution in Hymenoptera and Its Implications for the Evolution of Eusociality. [PDF]

open access: yes, 2015
Eusocial insects, mostly Hymenoptera, have evolved unique colonial lifestyles that rely on the perception of social context mainly through pheromones, and chemoreceptors are hypothesized to have played important adaptive roles in the evolution of ...
Berger, Shelley L   +5 more
core   +2 more sources

Quantifying Abdominal Coloration of Worker Honey Bees

open access: yesInsects
The main drawback in using coloration to identify honey bee subspecies is the lack of knowledge regarding genetic background, subjectivity of coloration grading, and the effect of the environment. The aim of our study was to evaluate the effect of environmental temperature on the abdominal coloration of honey bee workers and to develop a tool for ...
Jernej Bubnič, Janez Prešern
openaire   +3 more sources

Engineering Deformation and Failure in Diamond Triply Periodic Minimal Surface Lattices via 3D Wall‐Thickness Grading

open access: yesAdvanced Engineering Materials, EarlyView.
The work demonstrates that strategic wall‐thickness grading in diamond triply periodic minimal surface lattices enables precise tuning of deformation and failure behavior under compression. Different gradation patterns guide how and where the structure collapses, improving energy absorption or promoting controlled brittle failure.
Giovanni Rizza   +3 more
wiley   +1 more source

Morphological Changes in the Mandibles Accompany the Defensive Behavior of Indiana Mite Biting Honey Bees Against Varroa Destructor

open access: yesFrontiers in Ecology and Evolution, 2021
The honey bee (Apis mellifera) is the most important managed pollinator to sustainable agriculture and our ecosystem. Yet managed honey bee colonies in the United States experience 30–40% losses annually.
Jada Smith   +4 more
doaj   +1 more source

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