Results 161 to 170 of about 9,860 (215)
Reconstruction and application of a genome-scale metabolic model for Streptococcus suis. [PDF]
BMC GenomicsXu N +5 more
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CRL4DCAF12 regulation of MCMBP ensures optimal licensing of DNA replication. [PDF]
Nat CommunYadav AK +9 more
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Queen replacement in orphaned colonies of the fire ant, Solenopsis invicta
Behavioral Ecology and Sociobiology, 19781. When field colonies of Solenopsis invicta Buren were orphaned by removing the functioning queen, re-collection 8–10 weeks later showed that 61% had replacement queens that were physogastric and attractive to workers. The weight of the original colony queens increases with the colony mound volume.
Walter R. Tschinkel, Dennis F. Howard
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Insectes Sociaux, 2000
The reproductive strategy between queen-right and orphaned colonies of Myrmica kotokui was compared. The ratio of orphaned colonies reached about 30 percent in the field. Although colony size was significantly smaller in orphaned colonies, the mean body size and mean ovariole length of the workers were significantly larger than those in queen-right ...
T. Kikuchi, F. Tomizuka, S. Higashi
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The reproductive strategy between queen-right and orphaned colonies of Myrmica kotokui was compared. The ratio of orphaned colonies reached about 30 percent in the field. Although colony size was significantly smaller in orphaned colonies, the mean body size and mean ovariole length of the workers were significantly larger than those in queen-right ...
T. Kikuchi, F. Tomizuka, S. Higashi
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Sex ratios in bumble bee colonies: Complications due to orphaning?
Behavioral Ecology and Sociobiology, 1980Highly male-biased investment ratios (1:2.86, F:M, biomass wet weight) were found among reproductives reared by 32 Bombus terricola colonies set out in the field and 35 B. melanopygus colonies held in laboratory confinement. The numerical sex ratios were almost identical for the two species (1 queen to 6.1 males).
Robin E. Owen +2 more
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The Indian Economic & Social History Review, 2007
This article examines British encounters with Indian, Andamanese, white and African orphans in colonial India in the second half of the nineteenth century. It argues that orphans provided colonial administrators with opportunities to articulate increasingly scientific constructions of race, which might undergird contemporary imperialism, and ...
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This article examines British encounters with Indian, Andamanese, white and African orphans in colonial India in the second half of the nineteenth century. It argues that orphans provided colonial administrators with opportunities to articulate increasingly scientific constructions of race, which might undergird contemporary imperialism, and ...
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Algerian Orphans and Colonial Christianity in Algeria, 1866-1939
French History, 2006This article considers the exceptional fate of the orphan survivors of the great Algerian demographic crisis of the late 1860s who subsequently converted to Catholicism. Using a prosopographical approach, this study seeks to highlight the complexities of national identity in France and to explore some of the racial tensions emerging in Algeria in the ...
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Animal Behaviour, 2010
In group-living animals where dominance hierarchies occur, aggression can be reduced if individuals are able to recognize each other. To do this, and to adapt their behaviour suitably when faced with a rival, individuals may rely on two nonmutually exclusive recognition means: they could recognize group members individually and/or their social status ...
Pierre Blacher +3 more
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In group-living animals where dominance hierarchies occur, aggression can be reduced if individuals are able to recognize each other. To do this, and to adapt their behaviour suitably when faced with a rival, individuals may rely on two nonmutually exclusive recognition means: they could recognize group members individually and/or their social status ...
Pierre Blacher +3 more
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Insectes Sociaux, 1993
Colonies ofCoptotermes lacteus (Froggatt) from a site in coastal south-eastern Australia were experimentally orphaned in early 1989. Sample colonies were examined 3, 6, 12, 18, 24 or 30 months later for their caste composition, the presence of replacement reproductives and brood. All replacement reproductives were nymphoid neotenics.
M. Lenz, S. Runko
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Colonies ofCoptotermes lacteus (Froggatt) from a site in coastal south-eastern Australia were experimentally orphaned in early 1989. Sample colonies were examined 3, 6, 12, 18, 24 or 30 months later for their caste composition, the presence of replacement reproductives and brood. All replacement reproductives were nymphoid neotenics.
M. Lenz, S. Runko
openaire +1 more source