Results 51 to 60 of about 22,796 (268)

Equivocal Evidence for Colony Level Stress Effects on Bumble Bee Pollination Services

open access: yesInsects, 2020
Climate change poses a threat to global food security with extreme heat events causing drought and direct damage to crop plants. However, by altering behavioural or physiological responses of insects, extreme heat events may also affect pollination ...
Arran Greenop   +6 more
doaj   +1 more source

Observations on Colony Size in Bumblebees (\u3ci\u3eBombus\u3c/i\u3e Spp.) [PDF]

open access: yes, 2017
(excerpt) One factor to consider when attempting to rear bumblebees (Bombus spp.) for pollination of crops is potential colony size. Species which emerge from hibernation early and continue to produce workers late in the summer or early fall are likely ...
Husband, Robert W
core   +2 more sources

Detection of Lotmaria passim and Crithidia mellificae in Selected Bumblebee Species

open access: yesPathogens, 2022
Bumblebees (Bombus spp.) are an essential element of the ecosystem and the global economy. They are valued pollinators in many countries around the word.
Maria Michalczyk, Rajmund Sokół
doaj   +1 more source

Discriminations of Color and Pattern on Artificial Flowers by Male and Female Bumble Bees, \u3ci\u3eBombus Impatiens\u3c/i\u3e (Hymenoptera: Apidae) [PDF]

open access: yes, 2018
This study examined the performance of male bumble bees (Bombus impatiens) in color and pattern discriminations and compared it to that of female bees. Bees were trained to forage from rewarding (S+) and unrewarding (S-) artificial flowers which differed
Church, Dana   +2 more
core   +2 more sources

Does bumblebee preference of continuous over interrupted strings in string-pulling tasks indicate means-end comprehension?

open access: yeseLife
Bumblebees (Bombus terrestris) have been shown to engage in string-pulling behavior to access rewards. The objective of this study was to elucidate whether bumblebees display means-end comprehension in a string-pulling task.
Chao Wen   +10 more
doaj   +1 more source

Wild bee toxicity data for pesticide risk assessments [PDF]

open access: yes, 2019
Pollination services are vital for agriculture, food security and biodiversity. Although many insect species provide pollination services, honeybees are thought to be the major provider of this service to agriculture. However, the importance of wild bees
Lewis, Kathleen, Tzilivakis, John
core   +2 more sources

Short communication: First data on the prevalence and distribution of pathogens in bumblebees (Bombus terrestris and Bombus pascuorum) from Spain

open access: yesSpanish Journal of Agricultural Research, 2017
Bumblebees provide pollination services not only to wildflowers but also to economically important crops. In the context of the global decline of pollinators, there is an increasing interest in determining the pathogen diversity of bumblebee species.
Clara Jabal-Uriel   +5 more
doaj   +1 more source

Level of Genetic Diversity in European Bumblebees is Not Determined by Local Species Abundance

open access: yesFrontiers in Genetics, 2019
Bumblebee species with declining population trends tend to show lower genetic diversity levels than stable species. The observed difference might be explained by abundance differences, with declining bumblebee species having lower genetic diversity ...
Kevin Maebe   +4 more
doaj   +1 more source

Honeybee visitation to shared flowers increases Vairimorpha ceranae prevalence in bumblebees

open access: yesEcology and Evolution, 2023
Vairimorpha (=Nosema) ceranae is a widespread pollinator parasite that commonly infects honeybees and wild pollinators, including bumblebees. Honeybees are highly competent V.
Maryellen Zbrozek   +3 more
doaj   +1 more source

Chronic exposure to neonicotinoids increases neuronal vulnerability to mitochondrial dysfunction in the bumblebee (Bombus terrestris) [PDF]

open access: yes, 2015
This work was funded jointly by the Biotechnology and Biological Sciences Research Council, the Department for Environment, Food and Rural Affairs, the Natural Environment Research Council, the Scottish Government, and The Wellcome Trust, under the ...
Bollan, Karen A.   +7 more
core   +3 more sources

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