Results 101 to 110 of about 27,849 (292)

Mating Stage on Year-Round Rearing of Bumblebees (Bombus terrestris)

Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi, 2018
Örtü altı yetiştiriciliği yapılan birçok bitki türünde tozlayıcı vektör olarak kullanılan bombus arılarının yetiştiriciliği, dünyada önemi giderek artan stratejik bir tarımsal uğraşı haline gelmiştir. Bombus arılarının kontrollü koşullarda yıl boyu yetiştiriciliği koloni oluşturma, ana ve erkek arı yetiştirme, seleksiyon, çiftleştirme ve diyapoz ...
Ayhan Gösterit, Fehmi Gürel
openalex   +3 more sources

Individual and combined impacts of sulfoxaflor and Nosema bombi on bumblebee (Bombus terrestris) larval growth

Proceedings of the Royal Society B, 2020
Sulfoxaflor is a globally important novel insecticide that can have negative impacts on the reproductive output of bumblebee (Bombus terrestris) colonies. However, it remains unclear as to which life-history stage is critically affected by exposure.
H. Siviter, A. J. Folly, Mark J. F. Brown, E. Leadbeater   +3 more
semanticscholar   +1 more source

Animal medical systems from Apis to apes: history, recent advances and future perspectives

Biological Reviews, EarlyView.
ABSTRACT Animal medical systems encompass a wide range of behaviours aimed at maintaining or improving health. It has become clear that these behaviours are not limited to animals treating themselves (self‐medication) but also include the treatment of group members, resulting in the adoption of the more inclusive term “animal medication”.
Michelina Pusceddu, Michael A. Huffman, Stephane Knoll, Ana Helena Dias Francesconi, Ignazio Floris, Alberto Satta   +5 more
wiley   +1 more source

A larval hunger signal in the bumblebee Bombus terrestris

Insectes Sociaux, 2006
Larvae of Bombus terrestris, a pollen-storing bumblebee, are dependent on progressive provisioning by workers. We test the hypothesis that larval cuticular chemicals can act as a hunger signal. We first show with a new classical conditioning experiment, using a Y-shaped tube, that workers can be trained to prefer the extracts of normally fed larvae ...
Marie José Duchateau, S. P. A. den. Boer, S. P. A. den. Boer   +2 more
openaire   +4 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   +3 more sources

Field-level clothianidin exposure affects bumblebees but generally not their pathogens

Nature Communications, 2018
The potential impact of neonicotinoid field exposure on bumblebee microbiota remains unclear. In a landscape—scale study, Wintermantel et al. show that whilst exposure to clothianidin impacts Bombus terrestris performance, it does not affect levels of ...
Dimitry Wintermantel, Barbara Locke, Georg K. S. Andersson, Emilia Semberg, Eva Forsgren, Julia Osterman, Thorsten Rahbek Pedersen, Riccardo Bommarco, Henrik G. Smith, Maj Rundlöf, Joachim R. de Miranda   +10 more
doaj   +1 more source

Photoreceptor spectral sensitivity in the bumblebee, Bombus impatiens (Hymenoptera: Apidae).

PLoS ONE, 2010
The bumblebee Bombus impatiens is increasingly used as a model in comparative studies of colour vision, or in behavioural studies relying on perceptual discrimination of colour.
Peter Skorupski, Lars Chittka
doaj   +1 more source

The impacts of predators and parasites on wild bumblebee colonies [PDF]

, 2018
1. The study of wild bumblebee nests has been hindered by the difficulty in locating and observing them. Here, 47 wild nests were located using a sniffer dog and volunteers. The entrances to 32 nests were filmed continuously to identify successful nests (
Alford, Andrews, Benton, Bolton, Brown, Brown, Carter, Carvell, Chapman, Cumber, Darwin, Donovan, Durrer, Durrer, Erler, Folly, Free, Fussell, Goulson, Goulson, Goulson, Goulson, Goulson, Graystock, Imhoof, Kells, Lopez-Vaamonde, Lye, Lye, Müeller, Müller, O'Connor, O'Connor, Osborne, Otterstatter, Otti, Otti, Paxton, Popp, Pouvreau, R Core Team, Rodd, Rutrecht, Schmid-Hempel, Shykoff, Sladen, Suzuki, Svensson, Waters, Whitehorn, Whitehorn, Winfree, Zuur   +52 more
core   +2 more sources

Role of forest edges and other seminatural linear landscape features in structuring wild bee habitat connectivity in intensively managed landscapes

Conservation Biology, EarlyView.
Abstract Pollinator conservation schemes typically focus on conserving existing, restoring degraded, or creating new wild bee habitats. Their effectiveness depends on dispersal corridors enabling habitat colonization by bees. However, the role of seminatural linear landscape structures (LLS) in connecting pollinator communities across intensively ...
Markus A. K. Sydenham, Anders Nielsen, Yoko L. Dupont, Claus Rasmussen, Henning B. Madsen, Marianne S. Torvanger, Bastiaan Star   +6 more
wiley   +1 more source

Secretory cycle of the Dufour's gland in workers of the Bumble bee Bombus terrestrisL. (Hymenoptera: Apidae, Bombini) [PDF]

, 1999
The Dufour's gland of Bombus terrestris workers, of different ages and with varying degrees of ovary development, was studied with the aim to verify its involvement in reproduction.
Abdalla, Fábio Camargo, Cruz-Landim, Carminda da, Duchateau, Marie José, Velthuis, Hayo   +3 more
core   +1 more source