Results 71 to 80 of about 1,834,681 (387)

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

, 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, BONMATIN J M, BONMATIN J M, CARRECK N L, EUROPEAN COMMISSION, EUROPEAN FOOD SAFETY AUTHORITY, EUROPEAN FOOD SAFETY AUTHORITY, EUROPEAN FOOD SAFETY AUTHORITY, FELTHAM H, Francis L W Ratnieks, GARBUZOV M, MAUS C, Norman L Carreck, OSBORNE J L, SCHMUCK R, SCHÖNING R, THOMPSON H   +16 more
core   +1 more source

The collection of pollen by bees

Plant Systematics and Evolution, 2000
Bees require pollen for their reproduction and pollen comprises the basic larval food for bees. Most bees acquire pollen passively during flower visitation, but female bees may also collect pollen actively with the aid of various structural and behavioral adaptations.
openaire   +3 more sources

Brood-Rearing Enhancing Potential of Manually Packed Pollen Feeding in Comparison with Pollen and Pollen Supplements in Patty Forms

Journal of Apicultural Science, 2020
Dearth-period pollen or pollen supplement feedings have become a common practice to maintain and stimulate the early buildup of honeybee colonies. Not only amount, type and consumption rate of feeds are important but the conversion and its nutrient ...
Adgaba Nuru, Al-Ghamdi Ahmad, Tadesse Yilma, Mohammed Seif Eldin A., Al-attal Yehya   +4 more
doaj   +1 more source

Antioxidant, Nutraceutical Properties, and Fluorescence Spectral Profiles of Bee Pollen Samples from Different Botanical Origins

Antioxidants, 2020
Bee pollen is made by honey bees (Apis Mellifera) from the pollen of plants and flowers and represents an apiary product enriched in essential amino acids, polyphenols, omega-3, and omega-6 fatty acids.
Daniele Barbieri, Morena Gabriele, Martina Summa, Raffaele Colosimo, D. Leonardi, V. Domenici, L. Pucci   +6 more
semanticscholar   +1 more source

Water-soluble propolis and bee pollen of Trigona spp. from South Sulawesi Indonesia induce apoptosis in the human breast cancer MCF-7 cell line

Oncology Letters, 2020
Bee products are best known as one of the beneficial natural products providing multiple pharmacological effects, such as antimicrobial, antiviral, anti-inflammatory and anticancer effects. The present study aimed to identify potent products derived from
Eri Amalia, Ajeng Diantini, A. Subarnas
semanticscholar   +1 more source

Particulate Matter Contamination of Bee Pollen in an Industrial Area of the Po Valley (Italy)

Applied Sciences, 2021
The global demand for bee pollen as a dietary supplement for human nutrition is increasing. Pollen, which comprises proteins and lipids from bees’ diets, is rich in essential amino acids, omega fatty acids, and bioactive compounds that can have ...
G. Papa, G. Capitani, M. Pellecchia, I. Negri   +3 more
semanticscholar   +1 more source

Pollen profile of bee pollen from semiarid Northeastern Brazil

Acta Botanica Brasilica, 2022
ABSTRACT The Northeastern Brazil has xerical vegetation with different biomes. Its botanical heterogeneity represents shelter for diverse fauna. The region is rich in bees, which demand the resources offered by the plants, and provide pollination services.
Viviane Miranda Karam, Tania Maria Sarmento Silva, Francisco de Assis Ribeiro dos Santos   +2 more
openaire   +4 more sources

Dose-Dependent Impact of Bee Pollen Supplementation on Macroscopic and Microscopic Structure of Femoral Bone in Rats

Animals, 2021
Bee pollen has been successfully used as a feed additive with beneficial impacts on productive, reproductive, and immune conditions of animals. However, its effect on bone structure and bone health remains controversial.
Monika Martiniakova, Ivana Bobonova, Robert Toman, Branislav Galik, Maria Bauerova, Radoslav Omelka   +5 more
doaj   +1 more source

Separation and Characterization of Phenolamines and Flavonoids from Rape Bee Pollen, and Comparison of Their Antioxidant Activities and Protective Effects Against Oxidative Stress

Molecules, 2020
Phenolamines and flavonoids are two important components in bee pollen. There are many reports on the bioactivity of flavonoids in bee pollen, but few on phenolamines. This study aims to separate and characterize the flavonoids and phenolamines from rape
Huifang Zhang, Rui Liu, Q. Lu
semanticscholar   +1 more source

POLLEN MAKES BEES HOT [PDF]

Journal of Experimental Biology, 2008
![Figure][1] Forager bees like nothing more than a sweet supply of nectar. But bees do not live by nectar alone. One of their main sources of protein is pollen. Knowing that bees have to maintain a reasonably high thoracic temperature for their muscles to power flight, and that foragers'
openaire   +2 more sources