Results 121 to 130 of about 5,678 (218)

Regular periods of abdominal contractions recorded from larvae of the bumblebee, Bombus terrestris (Hymenoptera: Apidae)

European Journal of Entomology, 2006
Using an opto-cardiograph combined with an infrared gas analyzer regular bouts of abdominal contractions were recorded from last instar larva of Bombus terrestris. The rate of CO2 release was about 0.7 ml g-1 h-1.
Marika MÄND, Aare KUUSIK, MARTIN Ants-Johannes, Ingrid H. WILLIAMS, Anne LUIK, Reet KARISE, Luule METSPALU, Külli HIIESAAR   +7 more
doaj   +1 more source

Unterschiede in der Kastendetermination zwischen den Hummelarten Bombus hypnorum und Bombus terrestris / Differences in the Caste Determination between the Bumblebee Species Bombus hypnorum and Bombus terrestris

Zeitschrift für Naturforschung B, 1970
In colonies of Bombus hypnorum reared in captivity all intermediate body sizes between worker and queen are produced, the body size being determined by the amount of food for the larvae. Queens are produced, if the larvae are fed sufficiently. In captivity queens are produced at every time of the colony development, if one worker has to feed only two ...
openaire   +1 more source

Investigating the impact of deploying commercial Bombus terrestris for crop pollination on pathogen dynamics in wild bumble bees

, 2013
The use of commercial bumble bees for crop pollination has been implicated in the decline of wild bumble bees through the spread of pathogens. This study investigates whether diseases from commercial bumble bees threaten native species in the UK.
Whitehorn, Penelope R, Matthew C Tinsley (16163396), Goulson, Dave, Tinsley, M C, Brown, Mark J F, Dave Goulson (4460962), Penelope R Whitehorn (16163390), Mark J F Brown (16163399)   +7 more
core   +1 more source

Rearing of Native Bumblebee Species Bombus haemorrhoidalis for Greenhouse Pollination in Pakistan

Agriculture
Greenhouse tomato production is a growing business worldwide, and it is strongly promoted by bumblebee pollination. Although there are over 250 bumblebee species worldwide, very few species have been reared successfully for greenhouse tomato pollination.
Umer Ayyaz Aslam Sheikh, Munir Ahmad, Muhammad Asif Aziz, Muhammad Imran, Junaid Rahim, T’ai Roulston, Shengnan Guo, Cheng Sun   +7 more
doaj   +1 more source

Allele specific expression and methylation in the bumblebee, Bombus terrestris

PeerJ, 2015
ABSTRACT The social hymenoptera are emerging as models for epigenetics. DNA methylation, the addition of a methyl group, is a common epigenetic marker. In mammals and flowering plants methylation affects allele specific expression.
Lonsdale, Zoë N., Lee, Kate D., Kyriakidou, Maria, Amarasinghe, Harindra E., Nathanael, Despina, O’Connor, Catherine J., Mallon, Eamonn B.   +6 more
openaire   +4 more sources

Analysis of a normalised expressed sequence tag (EST) library from a key pollinator, the bumblebee Bombus terrestris

BMC Genomics, 2010
Background The bumblebee, Bombus terrestris (Order Hymenoptera), is of widespread importance. This species is extensively used for commercial pollination in Europe, and along with other Bombus spp.
Reinhardt Richard, Klages Sven, Kube Michael, Sadd Ben M, Schmid-Hempel Paul   +4 more
doaj   +1 more source

Yıl Boyu Kitlesel Bombus Arısı (Bombus terrestris) Yetiştiriciliğinde Çiftleştirme Aşaması

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
openaire   +1 more source

Colour pattern and DNA-barcoding reveal a wide distribution of the insular endemic bumble bee Bombus xanthopus in the Tuscan Archipelago

The European Zoological Journal
Insular ecosystems, due to their isolation from the mainland and limited areas, are often endemism hotspots. However, the same factors that drive high endemicity also make islands vulnerable to anthropogenic pressure and thus to biodiversity loss.
L. Pasquali, C. B. Boni, M. Bonifacino, A. Bordoni, C. Bruschini, F. Coppola, E. Monterastelli, M. Penco, V. Salvati, M. Skowron Volponi, M. Vecchi, G. Vicari, A. Felicioli, A. Cini, L. Dapporto   +14 more
doaj   +1 more source

Status and monitoring of the buff-tailed bumblebee Bombus terrestris Linnaeus (Hymenoptera: Apidae) in Southern Finland

, 2014
Bombus terrestris can cause pollination disturbance in native plants and compete with native bumblebees and other pollinators. The accompanying non-native parasites may also threaten native bees. We report new observations of the commercially used Bombus
Kakko, Maria, Sorvari, Jouni, Vesterlund, Salla-Riikka, Vasemägi, Anti   +3 more
core   +2 more sources

Bombus arısı Bombus terrestris (Hymenoptera: Apidae) immün sistem hücrelerinin metamorfoz sürecinde incelenmesi

, 2023
Fen Fakültesi, Biyoloji A.B.D. Araştırma ProjesiAraştırma Projesi elektronik ortamda bulunmaktadır.Arıların polinasyonda görev almaları hem bitki populasyonlarının devamlılığını sağlar hem de meyvelerin verimliliğini artırır.
Çakıcı, Özlem
core   +1 more source