Results 171 to 180 of about 316,826 (222)
Worker Thelytoky Allows Requeening of Orphaned Colonies but Increases Susceptibility to Reproductive Cheating in an Ant [PDF]
Animal Behaviour, 2018 In some social insects, workers can produce females asexually through thelytokous parthenogenesis. This allows them to produce replacement queens (i.e. requeening) if the queen has died, but also to compete with the queen to produce females (i.e. reproductive cheating).
Claudie Doums +2 more
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Some of the next articles are maybe not open access.
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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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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The Limits of the Human? Exhibiting Colonial Orphans in Victorian Culture
2020On the 24th of June, 1848, the Examiner covered an exhibition in Egyptian Hall: one of many which exhibited indigenous peoples from around the world. It had at its centre two Bushman orphans, a fifteen year old boy and an eight year old girl described as: ‘pathetic elf-like creatures with triangular-shaped faces and slant eyes that gave them a foxy ...
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Family Policy and Orphan Schools in Early Colonial Australia
Journal of Interdisciplinary History, 1991Family Policy and Orphan Schools in Early Colonial Australia Australia is renowned for its "convict heritage." Although that heritage is frequently celebrated as a colorful part of the national character, it provided a strange crucible in which social practices and structures were formulated.
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Absconding and colony mergers of orphaned Cape honey bees (Apis mellifera capensis)
Journal of Apicultural Research, 2011(2011). Absconding and colony mergers of orphaned Cape honey bees (Apis mellifera capensis) Journal of Apicultural Research: Vol. 50, No. 2, pp. 165-166.
Neumann, Peter, Hepburn, H. R.
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Origin of male-biased sex allocation in orphaned colonies of the termite, Coptotermes lacteus
Behavioral Ecology and Sociobiology, 2002In eusocial insects, sex allocation often constitutes a ground for intracolonial conflicts. This occurrence provides ideal opportunities to test kin-selection theory. A vast literature on this topic is available for social Hymenoptera, but the same field remains almost untouched in termites.
Roisin, Yves, Lenz, Michael
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