Results 51 to 60 of about 133,960 (214)

Current Pesticide Risk Assessment Protocols Do Not Adequately Address Differences Between Honey Bees (Apis mellifera) and Bumble Bees (Bombus spp.)

open access: yesFrontiers in Environmental Science, 2016
Recent research has demonstrated colony-level sublethal effects of imidacloprid on bumble bees, affecting foraging and food consumption, and thus colony growth and reproduction, at lower pesticide concentrations than for honey bee colonies.
Kimberly Stoner
doaj   +1 more source

Testing the efficacy of a thermal camera as a search tool for locating wild bumble bee nests [PDF]

open access: yes, 2020
This is the final version. Available from the publisher via the DOI in this record.Published by Informa UK Limited, trading as Taylor & Francis Group.
Roberts, BR, Osborne, JL
core   +1 more source

The Importance of Males to Bumble Bee (Bombus Species) Nest Development and Colony Viability

open access: yesInsects, 2020
Bumble bee population declines over the last decade have stimulated strong interest in determining causative factors and necessary conservation measures.
Joseph E. Belsky   +2 more
doaj   +1 more source

Evaluation of the FERA study on bumble bees and consideration of its potential impact on the EFSA conclusions on neonicotinoids [PDF]

open access: yesEFSA Journal, 2013
The European Food Safety Authority was requested to clarify whether the new publication on the effects of neonicotinoid seed treatments on bumble bee colonies under field conditions (March, 2013; Thompson et al.) has an impact on the EFSA Conclusions on ...
European Food Safety Authority
doaj   +1 more source

Reproductive stages in lowbush blueberry (Vaccinium angustifolium) occur earlier with increasing temperature

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Climate change is altering the timing of many plant phenological events, yet most studies focus on flowering, with less attention given to later reproductive stages such as fruit development and ripening. Vaccinium angustifolium (lowbush blueberry) is an important perennial berry species that may be sensitive to these changes.
Jenna Floyd   +5 more
wiley   +1 more source

A landscape-scale study of bumble bee foraging range and constancy, using harmonic radar

open access: yes, 1999
1. Bumble bees play a vital role in the pollination of many crops and wild flowers, and plans for their conservation require a knowledge of the dynamics and spatial scale of their foraging flights, which are, at present, poorly understood. 2.
Osborne, J. L.   +7 more
core   +1 more source

Honey bees exhibit greater patch fidelity than bumble bees when foraging in a common environment

open access: yesEcosphere, 2023
Animals commonly exhibit a tendency to return to previously visited locations. Such tendency is manifested at different scales, for example, fidelity to a site or fidelity to a specific patch within a site.
Fabiana P. Fragoso, Johanne Brunet
doaj   +1 more source

Earlier Morning Arrival to Pollen-Rewarding Flowers May Enable Feral Bumble Bees to Successfully Compete with Local Bee Species and Expand Their Distribution Range in a Mediterranean Habitat

open access: yesInsects, 2022
During recent decades, bumble bees (Bombus terrestris) have continuously expanded their range in the Mediterranean climate regions of Israel. To assess their potential effects on local bee communities, we monitored their diurnal and seasonal activity ...
Noam Bar-Shai   +3 more
doaj   +1 more source

Mycotoxin management in the cereal supply chain: Advanced detection, detoxification, and smart packaging strategies

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract Mycotoxins remain a persistent threat to the safety and quality of cereal grains and other agricultural products, and their impact on human health continues to raise global concerns. In many situations, the practices traditionally used to control these toxins are no longer sufficiently effective. They can be costly, difficult to implement on a
Abolfazl Asqardokht‐Aliabadi   +2 more
wiley   +1 more source

Infection and transmission of Nosema bombi in Bombus terrestris colonies and its effect on hibernation, mating and colony founding [PDF]

open access: yes, 2008
The impact of the microsporidium Nosema bombi on Bombus terrestris was studied by recording mating, hibernation success, protein titre in haemolymph, weight change during hibernation, and colony founding of queens that were inoculated with N.
Steen, J.J.M., van der   +1 more
core   +1 more source

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