Results 151 to 160 of about 90,748 (332)

Africanización de la abeja melífera (Apis mellifera L.). Revisión de Literatura

open access: yesAgrisost, 2020
Contexto: El proceso de hibridación (africanización) de la abeja europea con abejas de origen africanos es un problema para los apicultores del continente americano, por su alta enjambrazón y defensividad, esta última dificulta en buena medida el manejo ...
Diego Masaquiza Moposita   +2 more
doaj  

PEP725: 15 years of driving European and global phenology science

open access: yesNew Phytologist, EarlyView.
Summary Phenology – the timing of seasonal biological events – is a sensitive indicator of climate change and ecosystem dynamics. Long‐term, broad‐scale phenological data are crucial for understanding and predicting plant responses to environmental change.
Barbara Templ   +4 more
wiley   +1 more source

Точка кристаллизации тканей тела медоносных пчел Apis mellifera mellifera L. и Apis mellifera carnica

open access: yesВестник Костромского государственного университета им. Н.А. Некрасова, 2011
The year cycle of crystallization point of different departments of a body of honeybee is shown in dynamics. Distinction of crystallization point of tissues of honeybee in Apis mellifera mellifera and Apis mellifera carnica is noted. The given indicator will allow to explain the mechanism of adaptation of bees at physiological level to adverse winter ...
openaire   +1 more source

Synergistic effect of honeybees and wild floral visitors in promoting sweet cherry fruit set in central Chile

open access: yesBiological Research
Background Recent evidence highlights the key role of wild insects as pollinators in agroecosystems, enhancing fruit set in crops such as sweet cherry (Prunus avium). In Chile, the contribution of wild insects to crop yield remains poorly understood, and
Camila B. García   +6 more
doaj   +1 more source

Genetic Basis of UV Bullseye Size Variations in Turnip Rape (Brassica rapa subsp. oleifera)

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Floral ultraviolet (UV) patterns are visible to bee pollinators and can affect crop yields by impacting pollinator visitation. However, the mechanisms underlying the intraspecific variations of UV bullseye size remain largely unknown. We analyse the ecological consequences and genetic basis of floral UV bullseye size variation in an important ...
Zhi‐Li Zhou   +11 more
wiley   +1 more source

Distribution and transmission of American foulbrood in honey bees [PDF]

open access: yes, 2006
The distribution of Paenibacillus larvae spores, the causative agent of American foulbrood, was studied on three different levels in the honey bee system; the apiary level, the colony level and the individual honey bee level.
Lindström, Anders
core  

Macronutrient composition in pollen affects development and survival in wild bees

open access: yesPhysiological Entomology, EarlyView.
Small carpenter bees (Ceratina calcarata) were reared on diets formulated with black poplar and dandelion pollen, while closely monitoring developmental metrics, lipid content and survival. Macronutrient analyses on both pollen types revealed dandelion pollen contained lower levels of protein, essential amino acids and several fatty acids, which ...
Khara W. Stephen, Sandra M. Rehan
wiley   +1 more source

How seasonality, semi-natural habitat cover and compositional landscape heterogeneity affect pollen collection and development of Apis mellifera colonies in Mediterranean agro-sylvo-pastoral systems [PDF]

open access: hybrid
Alberto Satta   +7 more
openalex   +1 more source

Dragon Fruit (Hylocereus undatus) Pollination in New Zealand: A Preliminary Report on Flower Visitors, Natural Pollen Deposition, and Artificial Pollination

open access: yesNew Zealand Journal of Crop and Horticultural Science, Volume 54, Issue 1, March 2026.
Dragon fruit (pitaya; Hylocereus undatus) is a promising, new high‐value crop in New Zealand. The large nocturnal flowers open for one night and close early in the morning the following day over a 3‐ to 6‐month long flowering period. In dragon fruit's native range, hawkmoths and bats are key nocturnal pollinators, and honey bees visit flowers during ...
Max N. Buxton   +2 more
wiley   +1 more source

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