Results 171 to 180 of about 9,860 (215)

Hierarchy length in orphaned colonies of the ant Temnothorax nylanderi

Naturwissenschaften, 2008
Workers of the ant Temnothorax nylanderi form dominance orders in orphaned colonies in which only one or a few top-ranking workers begin to produce males from unfertilized eggs. Between one and 11 individuals initiated 80% of all aggression in 14 queenless colonies.
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Origin of male-biased sex allocation in orphaned colonies of the termite, Coptotermes lacteus

Behavioral Ecology and Sociobiology, 2002
In 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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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.
Peter Neumann, H Randall Hepburn
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Orphaning does not affect the colony productivity of the primitive eusocial wasp Polistes snelleni

Insectes Sociaux, 2014
In colonies of primitively eusocial wasps, some dominant workers become successive queens and inherit queenship after the death of the foundress queens. Although workers in many species do not mate, workers of Polistes snelleni are capable of mating and female production. In this study, we removed foundress queens from colonies of P.
K. Yamasaki, K. Tsuchida
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Orphan outpost: Cape Breton colony, 1784--1820

2012
Abstract not available.
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Family Policy and Orphan Schools in Early Colonial Australia

Journal of Interdisciplinary History, 1991
Family 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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Variation in patriline reproductive success during queen production in orphaned colonies of the thelytokous antCataglyphis cursor

Molecular Ecology, 2011
AbstractIn genetically diverse insect societies (polygynous or polyandrous queens), the production of new queens can set the ground for competition among lineages. This competition can be very intense when workers can reproduce using thelytoky as worker lineages that manage to produce new queens gain a huge benefit.
Chéron, Blandine, Monnin, Thibaud, Federici, Pierre, Doums, Claudie   +3 more
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The Limits of the Human? Exhibiting Colonial Orphans in Victorian Culture

2020
On 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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Worker reproductive parasitism in naturally orphaned colonies of the Asian red dwarf honey bee, Apis florea

Insectes Sociaux, 2009
The truce between honey bee (Apis spp.) workers over reproduction is broken in the absence of their queen. Queenright workers generally abstain from personal reproduction, raising only the queen’s offspring. Queenless workers activate their ovaries, produce eggs, and reduce the rate at which they destroy worker-laid eggs, so that some eggs are reared ...
N. C. Chapman, J. S. Higgs, W. Wattanachaiyingcharoen, M. Beekman, B. P. Oldroyd   +4 more
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Task allocation and alate production in monogynous, polygynous and orphan colonies ofMyrmica kotokui

Ethology Ecology & Evolution, 2001
We compared alate production and the behaviour of workers and queens among polygynous, monogynous and orphan colonies of Myrmica kotokui, a member of the M. rubra complex. The level of inactivity of workers and queens was lower in polygynous colonies than in monogynous colonies. However, alate production per worker was not higher in polygynous colonies,
T. Kikuchi, S. Higashi
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