Results 81 to 90 of about 759 (136)

Examining the effects of repeated pesticide exposure on bumblebee queen survival and reproduction

open access: yesEcological Solutions and Evidence, Volume 6, Issue 1, January–March 2025.
Here, we look at the effects of an unstudied, yet biologically likely exposure regime, on bumblebee queens. We found that neither exposure to sulfoxaflor pre‐ or post‐hibernation, nor their combination, impacted hibernation survival or colony foundation.
Morgan A. Morrison   +3 more
wiley   +1 more source

Direct Cloning of Crithidia [PDF]

open access: yes, 1997
对短膜虫的直接克隆方法进行探索.利用此方法,对熊蜂短膜虫直接克隆的最高成功率可达100%,两周左右的时间能够建立起克隆,可以应用于对短膜虫自然种群的研究The experiment was carried out on the cloning of Crithidia directly out of its hosts so as to study the clonal structure, epidemiology and genetic variance of its natural ...
武文杰
core  

Variable effects of nicotine, anabasine, and their interactions on parasitized bumble bees [version 2; referees: 2 approved]

open access: yesF1000Research, 2015
Secondary metabolites in floral nectar have been shown to reduce parasite load in two common bumble bee species. Previous studies on the effects of nectar secondary metabolites on parasitized bees have focused on single compounds in isolation; however ...
Lukas P. Thorburn   +3 more
doaj   +1 more source

Data and R code for "Gut Transplants from Bees Fed an Antipathogenic Pollen Diet Do Not Confer Pathogen Resistance to Recipients"

open access: yes, 2023
Pollinators are threatened by diverse stressors, including microbial pathogens such as Crithidia bombi. Consuming sunflower pollen dramatically reduces C.
Fowler, Alison E.   +2 more
core   +1 more source

Testing Dose-Dependent Effects of the Nectar Alkaloid Anabasine on Trypanosome Parasite Loads in Adult Bumble Bees.

open access: yesPLoS ONE, 2015
The impact of consuming biologically active compounds is often dose-dependent, where small quantities can be medicinal while larger doses are toxic. The consumption of plant secondary compounds can be toxic to herbivores in large doses, but can also ...
Winston E Anthony   +4 more
doaj   +1 more source

The role of Crithidia bombi and commercial bumblebee colonies in pollination [PDF]

open access: yes, 2019
Bumblebees provide crucial pollination services to crops and wild plants. They also play host to a variety of parasites. It is not known whether such parasites impact upon the pollination services that bees are providing.
Martin, Callum
core  

Double-stranded RNA reduces growth rates of the gut parasite Crithidia mellificae

open access: yes, 2019
Parasites of managed bees can disrupt the colony success of the host, but also influence local bee-parasite dynamics, which is regarded as a threat for wild bees.
de Sousa Pereira, Kleber   +3 more
core   +1 more source

The effects of understudied agrochemicals and parasites on bumble bee (Bombus terrestris) health:How co-formulants, glyphosate and Crithidia bombi affect a wild pollinator species. [PDF]

open access: yes, 2021
In the wild, bees face a number of distinct threats to their continued existence. This is of concern because bees play an essential role as pollinators in both agriculture specifically, and more broadly in non-agricultural ecosystems. To humans, bees are
Straw, Ed
core  

Differential diagnosis of the honey bee trypanosomatids Crithidia mellificae and Lotmaria passim

open access: yes, 2015
Trypanosomatids infecting honey bees have been poorly studied with molecular methods until recently. After the description of Crithidia mellificae (Langridge and McGhee, 1967) it took about forty years until molecular data for honey bee trypanosomatids ...
Descamps, Tine   +19 more
core   +1 more source

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