Results 101 to 110 of about 33,235 (336)

Walking bumblebees see faster

Proceedings of the Royal Society B: Biological Sciences, 2023
The behavioural state of animals has profound effects on neuronal information processing. Locomotion changes the response properties of visual interneurons in the insect brain, but it is still unknown if it also alters the response properties of photoreceptors. Photoreceptor responses become faster at higher temperatures.
Lisa Rother, Robin Müller, Erwin Kirschenmann, James J. Foster, Sinan Kaya-Zeeb, Markus Thamm, Keram Pfeiffer   +6 more
openaire   +3 more sources

Nectar concentrations of biogenic amines affect bumble bee behavior in a dose‐dependent manner

Oikos, EarlyView.
While foraging, pollinators encounter a wide array of molecules, some of which may influence their internal states and behaviors. Among these, biogenic amines – nitrogenous compounds that serve as essential neuromodulators in animals – have only recently been detected in floral nectar.
Marta Barberis, Daniele Calabrese, David Baracchi, Laura Bortolotti, Flavia Di Cesare, Rosa Ranalli, Laura Zavatta, Massimo Nepi, Marta Galloni, Gherardo Bogo   +9 more
wiley   +1 more source

Flower angle favors pollen export efficiency in the snowdrop Galanthus nivalis (Linnaeus, 1753) but not in the lesser celandine Ficaria verna (Huds, 1762)

Plant Signaling & Behavior, 2023
Flower angle is crucially important for accurate pollination and flower protection against abiotic factors. Evolutionary factors shaping floral traits are particularly strong for bilaterally symmetric flowers because these flowers require more ...
Pavol Prokop, Zuzana Ježová, Michaela Mešková, Viktória Vanerková, Martina Zvaríková, Peter Fedor   +5 more
doaj   +1 more source

Deep-sequence phylogenetics to quantify patterns of HIV transmission in the context of a universal testing and treatment trial – BCPP/Ya Tsie trial

eLife, 2022
Background: Mathematical models predict that community-wide access to HIV testing-and-treatment can rapidly and substantially reduce new HIV infections.
Lerato E Magosi, Yinfeng Zhang, Tanya Golubchik, Victor DeGruttola, Eric Tchetgen Tchetgen, Vladimir Novitsky, Janet Moore, Pam Bachanas, Tebogo Segolodi, Refeletswe Lebelonyane, Molly Pretorius Holme, Sikhulile Moyo, Joseph Makhema, Shahin Lockman, Christophe Fraser, Myron Max Essex, Marc Lipsitch, On behalf of The Botswana Combination Prevention Project and PANGEA consortium   +17 more
doaj   +1 more source

Neonicotinoid exposure disrupts bumblebee nest behavior, social networks, and thermoregulation

Science, 2018
Trouble at the hive Neonicotinoid pesticides cause mortality and decline in insect pollinators. One repeatedly noted effect is a reduction in bee colony size. However, the mechanism behind this reduction is unclear. Crall et al.
J. Crall, C. Switzer, R. Oppenheimer, Ashlee N. Ford Versypt, Biswadip Dey, Andrea Brown, Mackay Eyster, Claire Guérin, N. Pierce, S. Combes, Benjamin L. de Bivort   +10 more
semanticscholar   +1 more source

Finite-distance gravitational deflection of massive particles by a Kerr-like black hole in the bumblebee gravity model [PDF]

Physical Review D, 2019
In this paper, we study the weak gravitational deflection angle of relativistic massive particles by the Kerr-like black hole in the bumblebee gravity model.
Zonghai Li, A. Övgün
semanticscholar   +1 more source

The pick of the plot: An evidence‐based approach for selecting and testing suitable plants to use in annual seed mixes to attract insect pollinators

PLANTS, PEOPLE, PLANET, EarlyView.
Concern regarding wild pollinator declines has increased motivation to plant pollinator‐friendly plants in gardens and urban areas, but ‘plants for pollinators’ recommendations are often anecdotal and inaccurate. Here, we use a scientific evidence base to design and test annual flowering seed mixes for bees and hoverflies.
Lucy Witter, Laura Jones, Abigail Lowe, Will Ritchie, Peter Dennis, Gemma Beatty, Natasha de Vere   +6 more
wiley   +1 more source

First Characterization of Sphingomyeline Phosphodiesterase Expression in the Bumblebee, Bombus lantschouensis

Sociobiology, 2017
The bumblebee (Bombus lantschouensis Vogt) is an important pollinator of wild plants. Sphingomyelin phosphodiesterase (SMPD) is a hydrolase that plays a major role in sphingolipid metabolism reactions.
lei Han, Shaoyu He, Jie Dong, Ye Wang, Jiaxing Huang, Jie Wu   +5 more
doaj   +1 more source

Understanding Pollination in Urban Food Production: The Importance of Data Validation and Participant Feedback for Citizen Science Project Design

PLANTS, PEOPLE, PLANET, EarlyView.
Urban agriculture depends on insect pollination, but knowledge gaps persist due to difficulties accessing diverse growing spaces. We developed a citizen science approach for monitoring insect visits to crops and compared grower‐collected data to that of a trained researcher while also gathering participant feedback.
Elizabeth Nicholls, Leah Salm, Maria Clara Castellanos, Parthiba Basu, Soumik Chaterjee, Adrian Ely, Helena Howe, Dave Goulson   +7 more
wiley   +1 more source

Bumblebee Flight in Heavy Turbulence [PDF]

Physical Review Letters, 2016
High-resolution numerical simulations of a tethered model bumblebee in forward flight are performed superimposing homogeneous isotropic turbulent fluctuations to the uniform inflow. Despite tremendous variation in turbulence intensity, between 17% and 99% with respect to the mean flow, we do not find significant changes in cycle-averaged aerodynamic ...
Jörn Sesterhenn, Kai Schneider, Thomas Engels, Thomas Engels, Dmitry Kolomenskiy, Fritz-Olaf Lehmann   +5 more
openaire   +4 more sources