Results 31 to 40 of about 31,227 (221)

Towards integrated control of varroa: effect of variation in hygienic behaviour among honey bee colonies on mite population increase and deformed wing virus incidence [PDF]

open access: yes, 2014
Hygienic behaviour in the honey bee, Apis mellifera, is the uncapping and removal of dead, diseased or infected brood from sealed cells by worker bees. We determined the effect of hygienic behaviour on varroa population growth and incidence of deformed ...
Al Toufailia, Hasan M   +4 more
core   +1 more source

Expression of heat-shock protein genes in Apis mellifera meda (Hymenoptera: Apidae) after exposure to monoterpenoids and infestation by Varroa destructor mites (Acari: Varroidae)

open access: yesEuropean Journal of Entomology, 2017
Heat shock proteins (hsps) protect proteins in eukaryotic cells from damage. Expression of hsps in insects subject to different environmental stimuli is poorly characterized.
Najmeh SAHEBZADEH, Wei Hong LAU
doaj   +1 more source

The large carpenter bee Xylocopa augusti (Hymenoptera: Apidae): new record for Chile [PDF]

open access: yes, 2013
The large carpenter bee Xylocopa (Neoxylocopa) augusti Lepeletier de Saint Fargeau, 1841, is here recorded for the first time in Chile. This new record increases to four the number of carpenter bees known for the country.
Allendes, Juan L.   +2 more
core   +4 more sources

A survey of the bees (Hymenoptera: Apoidea) from Isfahan Province, Iran [PDF]

open access: yesJournal of Insect Biodiversity and Systematics, 2019
In this survey, 154 bee species of Apoidea superfamily, from the western part of the Isfahan province, Iran were recorded, of which 29 species are new for the fauna of Iran.
Razieh Khodarahmi Ghahnavieh   +1 more
doaj  

Late Winter Foraging by Honeybees (Hymenoptera: Apidae) at Sapsucker Drill Holes [PDF]

open access: yes, 2017
Observations of Apis mellifera foraging at sapsucker drill holes were made during February 1988 in southwestern Virginia. Foraging bouts were dependent upon temperature; more bees visited drill holes when ambient temperatures exceeded 10oC. Honeybees did
Williams, Charles E
core   +3 more sources

Bee pollination effects on yield and chemical composition of West Indian gherkin fruits (Cucumis anguria L., Cucurbitaceae) in the Brazilian semi-arid region [PDF]

open access: yesBrazilian Journal of Biology
Animal pollination plays a key role in global agricultural production and especially of monoecious crops, which are essentially dependent on pollinators.
I. C. S. Magalhães   +4 more
doaj   +1 more source

Epeoloides pilosulus (Cresson) Rediscovered in Michigan, with Notes on the Distribution and Status of its Macropis hosts. [PDF]

open access: yes, 2019
Epeoloides pilosulus (Cresson 1878) is one of the rarest bees in North America with only a handful of records since 1960. The last collection in Michigan was made in 1944.
Gibbs, Jason   +4 more
core   +2 more sources

Pattern of population structuring between Belgian and Estonian bumblebees [PDF]

open access: yes, 2019
Several population genetic studies investigated the extent of gene flow and population connectivity in bumblebees. In general, no restriction in gene flow is considered for mainland populations of common bumblebee species.
Karise, Reet   +4 more
core   +1 more source

A new species of Mermiglossa from Kenya, with comments on the arrangement of Old World Panurginae (Hymenoptera: Andrenidae) [PDF]

open access: yes, 2017
A new species of the panurgine bee genus Mermiglossa Friese (Panurginae) is described and figured from females captured near Voi in the southern part of the former Coast Province, Kenya, a historical type locality for several bee species.
Ascher, John S., Engel, Michael S.
core   +2 more sources

Genetic differentiation and adaptive evolution of buff‐tailed bumblebees in Asia

open access: yesInsect Science, EarlyView.
This study investigates the genetic differentiation and local adaptation of the buff‐tailed bumblebee (Bombus terrestris) across its European and Asian populations. Using whole‐genome resequencing, we identified distinct genetic differences between populations, with Asian B. terrestris representing a unique genetic resource.
Long Su   +14 more
wiley   +1 more source

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