Results 41 to 50 of about 20,943 (236)

Sperm viability in the male accessory testes and female spermathecae of the bumblebee Bombus terrestris (Hymenoptera: Apidae)

European Journal of Entomology, 2008
In many species sperm competition selects for large ejaculates while females eliminate or disable a high percentage of the spermatozoa in their storage organs in order to control paternity.
Michael GREEFF, Paul SCHMID-HEMPEL
doaj   +1 more source

Assessment of Pollen Diversity Available to Honey Bees (Hymenoptera: Apidae) in Major Cropping Systems During Pollination in the Western United States

Journal of Economic Entomology, 2019
Global western honey bee, Apis mellifera (L.) (Hymenoptera: Apidae), colony declines pose a significant threat to food production worldwide. Poor nutrition resulting from habitat loss, extensive monocultures, and agricultural intensification is among the
Ellen Topitzhofer, Hannah M. Lucas, Priyadarshini Chakrabarti, C. Breece, V. Bryant, Ramesh R. Sagili   +5 more
semanticscholar   +1 more source

Spatial Vision and Visually Guided Behavior in Apidae

Insects, 2019
The family Apidae, which is amongst the largest bee families, are important pollinators globally and have been well studied for their visual adaptations and visually guided behaviors.
A. Kelber, H. Somanathan
semanticscholar   +1 more source

Bumblebee (Hymenoptera: Apidae) sample storage for a posteriori molecular studies: Interactions between sample storage and DNA-extraction techniques

European Journal of Entomology, 2013
A global decline in pollinator abundance and diversity has demanded increased research attention to the ecology and genetics of bumblebees. However, as progressively more restrictions are placed on sampling for insects, researchers are increasingly ...
António S. MOREIRA, Finbarr G. HORGAN, Tomás E. MURRAY, Thomais KAKOULI-DUARTE   +3 more
doaj   +1 more source

Comparative micro-computed tomographic analysis of the structure of brood cells and its effect on the development of the pupae of honey bee (Apis mellifera)

European Journal of Entomology, 2023
Most beekeepers worldwide use the same combs in their hives for many years, which can result in alterations in the inner volume of the comb cells. The objective of this survey using microcomputed tomography was to reveal developmental disorders caused by
Tamás SIPOS, Tamás DONKÓ, Ádám CSÓKA, Tamás KISS, Sándor KESZTHELYI   +4 more
doaj   +1 more source

The Economics of Honey Bee (Hymenoptera: Apidae) Management and Overwintering Strategies for Colonies Used to Pollinate Almonds

Journal of Economic Entomology, 2019
Commercial honey bee (Apis mellifera L.) colonies significantly contribute to agricultural productivity through crop pollination. Almond production requires the most colonies because there are more than a million acres of orchards that require cross ...
G. DeGrandi-Hoffman, Henry Graham, Fabiana Ahumada, Matthew Smart, Nick Ziolkowski   +4 more
semanticscholar   +1 more source

Pollenkitt is associated with the collectability of Malvoideae pollen for corbiculate bees

Journal of Pollination Ecology, 2023
Pollen grains of Malvoideae (Malvaceae) which corbiculate bees cannot collect constitute a floral filter that excludes pollen-collecting bumble bees and honey bees from exploiting pollen resources.
Sabine Konzmann, Mona Neunkirchen, Dagmar Voigt, Christoph Neinhuis, Klaus Lunau   +4 more
doaj   +1 more source

Demographic analysis of behavioral reactions of African bush elephants to a synthetic honey bee alarm pheromone blend

Wildlife Biology, EarlyView.
Human–elephant conflict situations continue to be a growing conservation issue. Conflict situations typically arise as the result of elephants traversing places with infrastructure where they become disruptive to human activities. Developing passive options for managing elephant movement and reducing human–elephant conflict situations is a conservation
Mark G. Wright, Michelle G. Au, Irene Gatti, Juliana Salehi, Craig R. Spencer, Paul Allin, Agenor Mafra-Neto   +6 more
wiley   +1 more source

Impacts of a fungicide and an insecticide on pollinator visitation and wildflower fitness

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Pesticide use has become widespread around the globe, and mounting evidence has demonstrated health impacts on non‐target insects such as bees. However, less is known about whether the presence of these chemicals in plant tissue can alter interactions between plants ...
Anna R. Tatarko, Sarah K. Richman, Anne S. Leonard   +2 more
wiley   +1 more source

Bombus (Hymenoptera: Apidae) Microcolonies as a Tool for Biological Understanding and Pesticide Risk Assessment

Environmental Entomology, 2019
Bumble bees provide valuable pollination services to many wild and agricultural plants. Populations of some bumble bee species are in decline, prompting the need to better understand bumble bee biology and to develop methodologies for assessing the ...
E. Klinger, A. Camp, J. Strange, D. Cox-Foster, D. M. Lehmann   +4 more
semanticscholar   +1 more source