Results 61 to 70 of about 5,678 (218)

Consequences of the high abundance of Bombus terrestris on the pollination of Vicia faba

Journal of Pollination Ecology, 2021
One of the main visitors to Fabia bean crops (Vicia faba) in South America is the invasive bumblebee species Bombus terrestris. This is particularly true in Chile, where B.
Cecilia Smith, Adriana Rendón, Rodrigo Barahona, Wladimir Moya   +3 more
doaj   +1 more source

Discontinuous gas exchange cycles and active ventilation in pupae of the bumblebee Bombus terrestris [PDF]

, 2005
Discontinuous release of CO2 (bursts) or discontinuous gas exchange cycles (DGC), metabolic rate (MR) and ventilation movements were simultaneously recorded from the pupae of the bumblebee Bombus terrestris by means of an electrolytic respirometer and an
Ants-Johannes Martin, Ingrid H Williams, Külli Hiiesaar, Karise, R., Aare Kuusik, Anne Luik, Williams, I. H., Kuusik, A., Reet Karise, Marika Mänd, Martin, A-J., Hiiesaar, K., Luule Metspalu, Metspalu, L., Luik, A., Mand, M.   +15 more
core   +1 more source

Interrelations of gas exchange cycles, body movements and heartbeats in the foragers of bumblebee Bombus terrestris (Hymenoptera: Apidae) at low temperatures

European Journal of Entomology, 2002
Rhythmic body movements, cyclic gas exchange and heart activity were studied at low temperature (mostly at 5°C) in bumblebee Bombus terrestris foragers. Simultaneous measurements by means of an electrolytic respirometer combined with an optical system by
Aare KUUSIK, MARTIN Ants-Johannes, Marika MÄND, Külli HIIESAAR, Luule METSPALU, Urmas TARTES   +5 more
doaj   +1 more source

Genomic divergence and a lack of recent introgression between commercial and wild bumblebees (Bombus terrestris)

Evolutionary Applications, 2022
The global movement of bees for agricultural pollination services can affect local pollinator populations via hybridization. When commercial bumblebees are of the same species but of different geographic origin, intraspecific hybridization may result in ...
Cecilia Kardum Hjort, Josephine R. Paris, Peter Olsson, Lina Herbertsson, Joachim R. deMiranda, Rachael Y. Dudaniec, Henrik G. Smith   +6 more
doaj   +1 more source

Proteomic differences in seminal fluid of social insects whose sperm differ in heat tolerance

Royal Society Open Science, 2023
In the coming years, climate change is likely to increase the frequency and intensity of heatwaves. In many organisms, heat stress provokes physiological perturbations and can lead to decreased male fertility.
Baptiste Martinet, Kimberly Przybyla, Corentin Decroo, Ruddy Wattiez, Serge Aron   +4 more
doaj   +1 more source

Dominance of Fructose-Associated Fructobacillus in the Gut Microbiome of Bumblebees (Bombus terrestris) Inhabiting Natural Forest Meadows

Insects, 2022
Bumblebees are key pollinators in agricultural landscapes. However, little is known about how gut microbial communities respond to anthropogenic changes. We used commercially produced colonies of buff-tailed bumblebees (Bombus terrestris) placed in three
Ronalds Krams, Dita Gudra, Sergejs Popovs, Jonathan Willow, Tatjana Krama, Maris Munkevics, Kaspars Megnis, Priit Jõers, Davids Fridmanis, Jorge Contreras Garduño, Indrikis A. Krams   +10 more
doaj   +1 more source

Social information about others' affective states in a human‐altered world

Journal of Animal Ecology, EarlyView.
Faced with anthropogenic change, animals now encounter challenges different from their evolutionary past. To cope with such challenges, animals may use social information about others' affective states to guide their decisions. Considering affective states of wild animals could have important implications for animal welfare and wildlife conservation ...
Luca G. Hahn, Jordan McDowall, Margaux Vanhussel, Mike Mendl, Alex Thornton   +4 more
wiley   +1 more source

Photoreceptor processing speed and input resistance changes during light adaptation correlate with spectral class in the bumblebee, Bombus impatiens.

, 2011
Colour vision depends on comparison of signals from photoreceptors with different spectral sensitivities. However, response properties of photoreceptor cells may differ in ways other than spectral tuning. In insects, for example, broadband photoreceptors,
Skorupski, P, Lars Chittka, Chittka, L, Peter Skorupski   +3 more
core   +1 more source

Anesthesia effects on the managed Bombus terrestris terrestris: a propedeutic investigation to study the climatic "refugee" Bombus konradin

, 2023
Scientific ...
Di Francescantonio Gaia, , Boni Chiara Benedetta, Coppola Francesca, Di Santo Marco, , Di Cecco Valter, , Di Martino Luciano, , Felicioli Antonio   +6 more
openaire   +2 more sources

Size variation and foraging rate in bumblebees ( Bombus terrestris ) [PDF]

Insectes Sociaux, 2002
Summary. Size polymorphism is an important life history trait in bumblebees with strong impact on individual behavior and colony organization. Within a colony larger workers tend to serve as foragers, while smaller workers fulfill inhive tasks. It is often assumed that size-dependent division of labor relates to differences in task performance. In this
Spaethe, Johannes, Weidenmüller, Anja
openaire   +2 more sources