Results 21 to 30 of about 76,329 (250)

Analyzing the Dietary Diary of Bumble Bee [PDF]

open access: yesFrontiers in Plant Science, 2020
Bumble bees are important crop pollinators and provide important pollination services to their respective ecosystems. Their pollen diet and thus food preferences can be characterized through nucleic acid sequence analysis.
Robert M. Leidenfrost   +5 more
doaj   +4 more sources

Comparison of seasonal viral prevalence supports honey bees as potential spring pathogen reservoirs for bumble bees

open access: yesEcosphere
Bee declines pose a serious risk to agricultural sustainability, wild plant diversity, and the commercial bee industry, generating local and global concerns about bee health. Parasites, including micro‐parasites and macro‐parasites, negatively impact bee
Briana E. Wham   +7 more
doaj   +2 more sources

The conservation of bumble bees [PDF]

open access: yesBee World, 2003
The approximately 250 known species of bumble bee (genus Bombus) are found predominantly in temperate regions of the northern hemisphere. This region also contains much of the world's human population and the most intensive agricultural regions. Probably as a result of this, many bumble bees appear to be undergoing dramatic declines in range.
Dave Goulson (4460962)
openaire   +2 more sources

What currency do bumble bees maximize? [PDF]

open access: yesPLoS ONE, 2010
In modelling bumble bee foraging, net rate of energetic intake has been suggested as the appropriate currency. The foraging behaviour of honey bees is better predicted by using efficiency, the ratio of energetic gain to expenditure, as the currency.
Nicholas L Charlton, Alasdair I Houston
doaj   +2 more sources

Olfactory coding in the antennal lobe of the bumble bee Bombus terrestris

open access: yesScientific Reports, 2021
Sociality is classified as one of the major transitions in evolution, with the largest number of eusocial species found in the insect order Hymenoptera, including the Apini (honey bees) and the Bombini (bumble bees).
Marcel Mertes   +2 more
doaj   +1 more source

An evidence-based rationale for a North American commercial bumble bee clean stock certification program

open access: yesJournal of Pollination Ecology, 2023
The commercial production and subsequent movement of bumble bees for pollination of agricultural field and greenhouse crops is a growing industry in North America and globally.
James Strange   +13 more
doaj   +1 more source

Introduced honey bees increase host plant abundance but decrease native bumble bee species richness and abundance

open access: yesEcosphere, 2022
Long‐term variation in the population density of introduced honey bees (Apis mellifera) has been shown to be associated with variations in floral traits in alpine lotus (Saussurea nigrescens).
Ruijun Su   +7 more
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

The Potential Influence of Bumble Bee Visitation on Foraging Behaviors and Assemblages of Honey Bees on Squash Flowers in Highland Agricultural Ecosystems. [PDF]

open access: yesPLoS ONE, 2016
Bee species interactions can benefit plant pollination through synergistic effects and complementary effects, or can be of detriment to plant pollination through competition effects by reducing visitation by effective pollinators.
Zhenghua Xie   +3 more
doaj   +1 more source

Big bees do a better job : intraspecific size variation influences pollination effectiveness [PDF]

open access: yes, 2014
Funding: School of Biology, University of St AndrewsBumblebees (Bombus spp.) are efficient pollinators of many flowering plants, yet the pollen deposition performance of individual bees has not been investigated.
Finlayson, Kathryn   +5 more
core   +2 more sources

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