Results 41 to 50 of about 22,796 (268)

Visitation frequencies of bumblebees and swallowtail butterflies to flowers and the nectar sugar concentration of Rhododendron kaempferi and R. japonicum in mountains of central Japan

Journal of Pollination Ecology, 2017
Relationships between flower visitor composition and floral traits help us to understand floral evolution. Swallowtail butterflies have been assumed to be the main pollinators of Rhododendron kaempferi and R. japonicum based on their floral shapes, and R.
Keigo Takahashi, Takao Itino
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

Knock‐on community impacts of a novel vector: spillover of emerging DWV‐B from Varroa‐infested honeybees to wild bumblebees

Ecology Letters, 2019
Novel transmission routes can directly impact the evolutionary ecology of infectious diseases, with potentially dramatic effect on host populations and knock‐on effects on the wider host community.
Robyn Manley, Ben Temperton, Toby D Doyle, Daisy Gates, Sophie Hedges, M. Boots, L. Wilfert   +6 more
semanticscholar   +1 more source

BumbleKey: an interactive key for the identification of bumblebees of Italy and Corsica (Hymenoptera, Apidae) [PDF]

, 2018
BumbleKey is a matrix-based, interactive key to all 45 species of bumblebees of Italy and Corsica. The key allows to identify adult males and females (queens and workers) using morphological characters. The key is published online, open-access, at http://
Cappellari, Andree, Cerretti, Pierfilippo, Lopresti, Massimo, Mei, Maurizio   +3 more
core   +2 more sources

Visual search and decision making in bees: time, speed and accuracy [PDF]

, 2006
An insect searching a meadow for flowers may detect several flowers from different species per second, so the task of choosing the right flowers rapidly is not trivial.
Chittka, L, Skorupski, P, Spaethe, J
core   +2 more sources

Bumblebees [PDF]

, 2010
Since bumblebees are a group associated with cool climates, Britain supports a large proportion (~10%) of the world's bumblebee fauna. However, three of our 25 species have become extinct, and seven species are Biodiversity Action Plan (BAP) listed, a higher proportion than for any other insect group.
openaire   +1 more source

A Local Replacement of \u3ci\u3eBombus Ternarius\u3c/i\u3e by \u3ci\u3eBombus Terricola\u3c/i\u3e in Northern Wisconsin (Hymenoptera: Apidae) [PDF]

, 2017
During the last few years, the bumblebee Bombus ternarius Say has markedly decreased in numbers in Vilas County in northern Wisconsin while Bombus terricola Kirby has increased. The great ecological similarity of these species suggests that interspecific
Thomson, James D
core   +2 more sources

Temperature and livestock grazing trigger transcriptome responses in bumblebees along an elevational gradient

iScience, 2022
Summary: Climate and land-use changes cause increasing stress to pollinators but the molecular pathways underlying stress responses are poorly understood.
Kristof Brenzinger, Fabienne Maihoff, Marcell K. Peters, Leonie Schimmer, Thorsten Bischler, Alice Classen   +5 more
doaj   +1 more source

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

Mass‐migrating bumblebees: An overlooked phenomenon with potential far‐reaching implications for bumblebee conservation

Journal of Applied Ecology, 2020
Bumblebees are pollinators, anthropogenic ...
T. Fijen
semanticscholar   +1 more source