Results 91 to 100 of about 75,825 (243)

Metabolomics-based biomarker discovery for bee health monitoring : a proof of concept study concerning nutritional stress in Bombus terrestris [PDF]

open access: yes, 2019
Bee pollinators are exposed to multiple natural and anthropogenic stressors. Understanding the effects of a single stressor in the complex environmental context of antagonistic/synergistic interactions is critical to pollinator monitoring and may serve ...
Meeus, Ivan   +5 more
core   +2 more sources

Insects and Survival: A Review of Primary and Secondary Defense Strategies

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Based on a review of three decades of literature, insect defense mechanisms are classified into primary (I) and secondary (II) mechanisms of behavioral, morphological, and chemical nature. These mechanisms have been recorded in 22 (I) and 20 (II) orders, respectively.
Lucas Fernandes Silva   +3 more
wiley   +1 more source

The dose makes the poison: have “field realistic” rates of exposure of bees to neonicotinoid insecticides been overestimated in laboratory studies? [PDF]

open access: yes, 2014
Recent laboratory based studies have demonstrated adverse sub-lethal effects of neonicotinoid insecticides on honey bees and bumble bees, and these studies have been influential in leading to a European Union moratorium on the use of three neonicotinoids,
BARON G L   +16 more
core   +1 more source

Two Metschnikowia nectar yeast species have similar volatile profiles but elicit differential foraging in bee pollinators

open access: yesEcological Entomology, EarlyView.
Yeasts that specialize in flower nectar play an important role in pollination ecology. Metschnikowia reukaufii and Metschnikowia koreensis were the most prevalent nectar yeasts found in our field sites. Bee pollinators exhibited different behavioural responses to nectar yeasts in field experiments. Bees visited more flowers with M.
M. Elizabeth Moore   +8 more
wiley   +1 more source

Morphometric analysis of the Carniolan Honeybee (Apis mellifera carnica) in the Republic of Srpska [PDF]

open access: yesAgroznanje
Beekeeping plays a significant role in animal husbandry, providing valuable products such as honey, beeswax, royal jelly, pollen, propolis, bee swarms, queens, and pollination services, essential for the survival of terrestrial ecosystems.
Ilić Dejan   +3 more
doaj   +1 more source

Assessing the role of dispersed floralresources for managed bees in providingsupporting ecosystem services for croppollination [PDF]

open access: yes, 2018
Most pollination ecosystem services studies have focussed on wild pollinators and their dependence on natural floral resources adjacent to crop fields. However, managed pollinators depend on a mixture of floral resources that are spatially separated from
Colville, Jonathan F.   +4 more
core   +2 more sources

Nutritional composition of pollen stores in managed bees across European agro‐ecosystems reveals species‐specific differences but limited pesticide effects

open access: yesEcological Entomology, EarlyView.
In the pollen stores of three bee species deployed across 128 European sites, bumble bees harboured lower lipid content and higher protein‐to‐lipid ratios than honey bees and mason bees. Toxicity‐weighted pesticide risk did not alter protein‐to‐lipid ratios, but higher risk was associated with reduced protein and lipid content in the pollen stores of ...
Antoine Gekière   +34 more
wiley   +1 more source

The complete mitochondrial genome of Apis mellifera unicolor (Insecta: Hymenoptera: Apidae), the Malagasy honey bee

open access: yesMitochondrial DNA. Part B. Resources, 2019
The complete mitochondrial genome of the endemic Malagasy honey bee Apis mellifera unicolor is 16,373 bp and comprises 13 protein-coding genes, 22 transfer RNA genes, two ribosomal RNA genes, and a control region.
Leigh Boardman   +6 more
doaj   +1 more source

ESTADO DE DETERIORAÇÃO DOS MÉIS DE ABELHA (APIS MELLIFERA) COMERCIALIZADOS EM SÃO LUÍS DO MARANHÃO

open access: yesCadernos de Pesquisa, 2013
O mel é um alimento muito apreciado e de excelente valor nutritivo, constituído por uma mistura complexa de carboidratos, enzimas, aminoácidos, ácidos, minerais, substâncias aromáticas, vitaminas, pigmentos, cera e grãos de pólen.
Marly Azevedo Saraiva   +5 more
doaj   +1 more source

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