Results 91 to 100 of about 3,288 (181)

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 ...
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Niche analyses and the potential distribution of four invasive bumblebees worldwide

Ecology and Evolution
The introduction of bees for agricultural production in distinct parts of the world and poor management have led to invasion processes that affect biodiversity, significantly impacting native species. Different Bombus species with invasive potential have
Tania Paola López‐Aguilar, Jose Montalva, Bruno Vilela, Marina P. Arbetman, Marcelo A. Aizen, Carolina L. Morales, Daniel de Paiva Silva   +6 more
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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
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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
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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
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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
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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
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Buzzing benefits: How multi-species pollination boosts strawberry yield, quality, and nutritional value

Journal of Pollination Ecology
A diverse assemblage of insect visitors can provide functional complementarity within plant pollination due to differences in characteristics such as their physical traits, visitation rate and foraging time of day or year.
Katie James, Simon Springate, Steven Harte, Dudley Farman, Richard Colgan, Sarah Arnold   +5 more
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Identification of cryptic species Bombus lucorum-complex and Bombus terrestris in Penza region using the PCR–RFLP method

Известия высших учебных заведений. Поволжский регион: Естественные науки
Background. Studying the distribution of cryptic species Bombus lucorum-complex is one of the most difficult tasks in regional entomological research. In Penza region there is information about only two species of bumblebees B. terrestris and B. lucorum,
G.S. Potapov, G.V. Bovykina, O.A. Polumordvinov, T.G. Stojko   +3 more
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High-Res Acoustic and Environmental Data to Monitor Bombus dahlbomii Amid Invasive Species, Habitat Loss

Scientific Data
The decline of the endemic Patagonian bumblebee (Bombus dahlbomii) as a result of invasive species and habitat loss, among other stressors, has raised significant conservation concerns for the species and the ecosystem it inhabits.
Patrick Chwalek, Marie Kuronaga, Isamar Zhu, Sophia Montague, Victoria Campopiano Robinson, Josefina Lohrmann, Cristian Alfonso Villagra Gil, David Susič, Anton Gradišek, Johannes Schul, Joseph A. Paradiso, Marina Arbetman   +11 more
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