Results 71 to 80 of about 19,257 (213)

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

Commercial Product Based on Metarhizium Anisopliae Affects Survival, Midgut Morphology, and Behavior in the Stingless Bee Scaptotrigona depilis (Hymenoptera: Apidae)

Environmental Toxicology, EarlyView.
ABSTRACT Brazilian social stingless bees are important pollinators and producers of honey, wax, royal jelly, propolis, and other products. These species are experiencing a population decline, attributed to different factors, such as the excessive use of pesticides.
Andressa Santoro, Daiani Rodrigues Moreira, Talita Aparecida Tódora Santana, Wingly Santos Beltrame, Nathalia Rodrigues da Silva de Carvalho, Breno Gabriel da Silva, Gustavo Henrique de Souza, Livia Bracht, Adriana Aparecida Sinópolis Gigliolli, Maria Claudia Colla Ruvolo Takasusuki   +9 more
wiley   +1 more source

Methylation and worker reproduction in the bumble-bee (Bombus terrestris) [PDF]

Proceedings of the Royal Society B: Biological Sciences, 2014
Insects are at the dawn of an epigenetics era. Numerous social insect species have been found to possess a functioning methylation system, previously not thought to exist in insects. Methylation, an epigenetic tag, may be vital for the sociality and division of labour for which social insects are renowned.
Amarasinghe, Harindra E., Clayton, Crisenthiya I., Mallon, Eamonn B.   +2 more
openaire   +3 more sources

No trade-off between learning speed and associative flexibility in bumblebees: a reversal learning test with multiple colonies [PDF]

, 2012
Potential trade-offs between learning speed and memory-related performance could be important factors in the evolution of learning. Here, we test whether rapid learning interferes with the acquisition of new information using a reversal learning paradigm.
Raine, Nigel E., Raine Nigel E., Lars Chittka, Chittka Lars, Chittka, Lars, Raine, Nigel, Raine, NE, Chittka, L, Nigel E Raine   +8 more
core   +1 more source

How do insects pollinate flowers? Behaviour during visitation determines high pollination efficiency by a generalist insect

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecosystem services provide essential benefits to human survival and well‐being. Animal behaviour is central to the delivery of many ecosystem services, yet we know little about how behaviour drives services' provision.
Martha Fox, Lorraine Scott, Isabella Capellini   +2 more
wiley   +1 more source

Bombus terrestris subsp. terrestris Linnaeus 1758

, 2017
Published as part of Ornosa, Concepción, Torres, Félix & Rúa, Pilar De La, 2017, Updated list of bumblebees (Hymenoptera: Apidae) from the Spanish Pyrenees with notes on their decline and conservation status, pp.
Ornosa, Concepción, Torres, Félix, Rúa, Pilar De La   +2 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

Warming and community context drive rapid plant evolution

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Abiotic and biotic factors are important drivers of plant evolution, but how these factors interact to influence plant evolution in multispecies communities is still poorly understood. We performed experimental evolution exposing Brassica rapa plants to a combination of
Juan Traine, Florian P. Schiestl, Quint Rusman   +2 more
wiley   +1 more source

Brood parasitism reduces but does not prevent Bombus terrestris reproductive success

Insect Science, EarlyView.
Graphical depiction of the colony splitting process. Throughout figures in this paper, results pertaining to host success are represented in blue, and cuckoo success is represented in red. Abstract Cuckoo bumblebees are obligate brood parasites that must invade a colony of their host bumblebee species in order to reproduce.
Sofia Dartnell, Lynn V. Dicks
wiley   +1 more source

Review of the methods to determine the hazard and toxicity of pesticides to bumblebees [PDF]

, 2001
Methods to determine the impact of pesticides on bumblebees are described. They are classified into laboratory tests to determine the acute toxicity and the hazard to bumblebees, (semi) field tests, and brood tests.
Steen, J.J.M., van der, van der Steen, J.J.M., Jozef J.M. van der Steen, van Der Steen, Jozef   +3 more
core   +1 more source