Results 51 to 60 of about 89,176 (260)

Olfactory conditioning of the proboscis extension in bumble bees

, 1999
The foraging behaviour of bumble bees is well documented for nectar and/or pollen gathering, but little is known about the learning processes underlying such behaviour.
Pham-Delegue, M. H., Picard-Nizou, A. L., Laloi, D., Pouvreau, A., Sandoz, J.C., Laloi, Dorine, Poppy, G., Marchesi, A., Picard-Nizou, A.L., Sandoz, J. C., Poppy, G. M., Tasei, J.N., Pham-Delègue, M.H., Tasei, J. N.   +13 more
core   +1 more source

Winter Active Bumblebees (Bombus terrestris) Achieve High Foraging Rates in Urban Britain [PDF]

, 2010
BackgroundForaging bumblebees are normally associated with spring and summer in northern Europe. However, there have been sightings of the bumblebee Bombus terrestris during the warmer winters in recent years in southern England.
Carlton, M, Ralph J Stelzer, Stelzer, RJ, Lars Chittka, Thomas C Ings, Chittka, L, Marc Carlton, Ings, TC   +7 more
core   +1 more source

Morphological characterization and staging of bumble bee pupae [PDF]

PeerJ, 2018
Bumble bees (Hymenoptera: Apidae, Bombus) are important pollinators and models for studying mechanisms underlying developmental plasticity, such as factors influencing size, immunity, and social behaviors. Research on such processes, as well as expanding
Li Tian, Heather M. Hines
doaj   +2 more sources

Investigating Nest Box Utilization by Bumble Bees and Reproductive Development of Male Bumble Bees [PDF]

, 2020
Bumble bees (Bombus Latrielle) are a wide-spread group of pollinating insects that are important species to conserve across many environments to ensure both ecological and economic resiliency because they pollinate important agricultural, horticultural ...
Herndon, James Daniel
core   +1 more source

Repellency of insecticides and the effect of thiacloprid on bumble bee colony development in red clover (Trifolium pratense L.) seed crops

Acta Agriculturae Scandinavica. Section B, Soil and Plant Science, 2019
The study intended to compare repellency of three insecticides on bumble bees and honey bees in Norwegian red clover (Trifolium pratense L.) seed crops, and to examine effects of thiacloprid on bumble bee colony development in the field.
Lars T. Havstad, John I. Øverland, Silja Valand, Trygve S. Aamlid   +3 more
doaj   +1 more source

Using respiratory physiology techniques in assessments of pesticide effects on bees

Julius-Kühn-Archiv, 2018
The determination of sub-lethal effects of pesticides on beneficial insects is challenging topic because the vast number of different possible endpoints. Traditionally measured endpoints reflect the basic outcome but do not give any information about the
Karise, Reet, Raimets, Risto, Dreyersdorff, Gerit, Mänd, Marika   +3 more
doaj   +1 more source

First detection of the larval chalkbrood disease pathogen Ascosphaera apis (Ascomycota: Eurotiomycetes: Ascosphaerales) in adult bumble bees. [PDF]

PLoS ONE, 2015
Fungi in the genus Ascosphaera (Ascomycota: Eurotiomycetes: Ascosphaerales) cause chalkbrood disease in larvae of bees. Here, we report the first-ever detection of the fungus in adult bumble bees that were raised in captivity for studies on colony ...
Sarah A Maxfield-Taylor, Alija B Mujic, Sujaya Rao   +2 more
doaj   +1 more source

Compensation for wind drift by bumble-bees

, 1999
In his classic studies on honeybee navigation, von Frisch had to rely on qualitative visual observations of the bees' flight paths, but nevertheless reached the surprising conclusion that bees seem to anticipate lateral wind drift and compensate by ...
Osborne, J. L., Riley, J. R., Williams, I. H., McCartney, H. A., Smith, A. D., Edwards, A. S., Reynolds, D. R.   +6 more
core   +1 more source

Radar tracking and motion-sensitive cameras on flowers reveal the development of pollinator multi-destination routes over large spatial scales [PDF]

, 2012
Central place foragers, such as pollinating bees, typically develop circuits (traplines) to visit multiple foraging sites in a manner that minimizes overall travel distance.
Chittka, Lars, Reynolds, Andrew M., Chittka, L, Ka S Lim, Ralph J. Stelzer, Lihoreau, M, Ralph J Stelzer, Andrew M. Reynolds, Ka S. Lim, Stelzer Ralph J., Osborne Juliet L., Ka S. Lim (137973), Alan D. Smith, Mathieu Lihoreau, Raine Nigel E., Juliet L Osborne, Chittka Lars, Nigel E. Raine¤b, Ralph J. Stelzer (137971), Osborne, Juliet L., Osborne, JL, Nigel E Raine, Reynolds, Andrew M, Mathieu Lihoreau (137965), Chittka, L., Stelzer, RJ, Lihoreau, M., Lihoreau Mathieu, Stelzer, Ralph J., Lars Chittka (27016), Raine, N. E., Smith, Allan, Reynolds Andrew M., Lim, Ka, Andrew M Reynolds, Raine, Nigel E., Smith, AD, Reynolds, A. M., Juliet L. Osborne¤c, Smith, A. D., Andrew M. Reynolds (137969), Lim, KS, Raine, Nigel, Raine, NE, Stelzer, Ralph, Alan D Smith, Smith, Alan D., Reynolds, AM, Lars Chittka, Lim Ka S., Lihoreau, Mathieu, Nigel E. Raine (75421), Stelzer, R. J., Osborne, J. L., Juliet L. Osborne (107697), Alan D. Smith (137975), Lim, K. S., Lim, Ka S., Smith Alan D.   +58 more
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Reproductive stages in lowbush blueberry (Vaccinium angustifolium) occur earlier with increasing temperature

American 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, Elise Cadiou, Alain G. Belliveau, Zoe A. Panchen, Terrell T. Roulston, Zoë Migicovsky   +5 more
wiley   +1 more source