Results 261 to 270 of about 27,849 (292)
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Animal Genetics, 2020
The bumblebee, Bombus terrestris, is an important pollinator commercially used on a global scale. The exported subspecies B. t. terrestris has colonised diverse environments, in some cases displacing wild pollinators to the verge of local extinction.
D. Cejas +4 more
semanticscholar +1 more source
The bumblebee, Bombus terrestris, is an important pollinator commercially used on a global scale. The exported subspecies B. t. terrestris has colonised diverse environments, in some cases displacing wild pollinators to the verge of local extinction.
D. Cejas +4 more
semanticscholar +1 more source
2019
Bombus terrestris (Linnaeus, 1758) s.l. 16.V.2004, lisière friche calcaire, Lamium album, 29; 26.VI.2004, friche chemin de fer, Rubus fruticosus, 49, 1J, Cirsium sp., 19; 26.VI.2004, percée vers bassin d’orage, Cirsium sp., 19; 18.VII.2013, Cirsium arvense, 1J, Medicago falcata, 1J.
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Bombus terrestris (Linnaeus, 1758) s.l. 16.V.2004, lisière friche calcaire, Lamium album, 29; 26.VI.2004, friche chemin de fer, Rubus fruticosus, 49, 1J, Cirsium sp., 19; 26.VI.2004, percée vers bassin d’orage, Cirsium sp., 19; 18.VII.2013, Cirsium arvense, 1J, Medicago falcata, 1J.
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Development and Reproductive Strategies in Bombus Terrestris Colonies
Behaviour, 1988The development and the reproductive output of 26 Bombus terrestris colonies were investigated. Four important points in colony development are distinguished. These are: a) the start of egg laying by the queen, leading to the beginning of the eusocial phase, the emergence of the first workers; b) the moment which we term the switch point, at which the ...
Hayo H. W. Velthuis, M.J. Duchateau
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A core linkage map of the bumblebeeBombus terrestris
Genome, 2006The bumblebee Bombus terrestris is an economically important pollinator and an emerging model species in quantitative and population genetics. We generated genetic linkage maps for 3 independent mapping populations of B. terrestris. The linkage map with the highest resolution had 21 linkage groups, which adequately represents the haploid chromosome ...
Lena Wilfert +5 more
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Structural and functional analysis of aquaporins in Bombus terrestris
International Journal of Biological MacromoleculesBombus terrestris are efficient pollinators in forestry and agriculture, with higher cold tolerance than other bees. Yet, their cold tolerance mechanism remains unclear. Aquaporins (AQPs) function as cell membrane proteins facilitating rapid water flow, aiding in osmoregulation.
Xiaomei, Ma +6 more
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Demographic Consequences of Drift in Contiguous Hives of <I>Bombus terrestris</I>
Journal of Economic Entomology, 2007The objective of this experiment was 1) to quantify drift between bumblebee, Bombus terrestris L., colonies when hives are vertically stacked; and 2) to measure the impact of drift on the colony growth. The experiment was conducted outside, in an open area, at three sites with one stack of three colonies per site.
Lefebvre, Diane, Pierre, Jacqueline
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The threat ofBombus terrestrisspread
Bee World, 1998Bombus terrestris is reared extensively today on an industrial scale and is widely spread commercially in many countries as a pollination agent. Based on the Israeli experience we want to elucidate the possible ecological impact of an invasion of this bee into natural habitats.
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Fertility signals in the bumblebee Bombus terrestris (Hymenoptera: Apidae)
Naturwissenschaften, 2008In eusocial Hymenoptera, queen control over workers is probably inseparable from the mechanism of queen recognition. In primitively eusocial bumblebees (Bombus), worker reproduction is controlled not only by the presence or absence of a dominant queen but also by other dominant workers.
Robert Twele +4 more
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Insectes Sociaux, 2010
Host–parasite systems are characterised by coevolutionary arms races between host and parasite. Parasites are often the driving force, as they replicate much faster than their hosts and have shorter generation times and larger population sizes, resulting in higher mutation rates per time interval.
Silvio Erler, H. M. G. Lattorff
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Host–parasite systems are characterised by coevolutionary arms races between host and parasite. Parasites are often the driving force, as they replicate much faster than their hosts and have shorter generation times and larger population sizes, resulting in higher mutation rates per time interval.
Silvio Erler, H. M. G. Lattorff
openaire +2 more sources