The social organisation of Lasioglossum (Dialictus) laevissimum (Smith) in southern Alberta

1992 ◽  
Vol 70 (9) ◽  
pp. 1767-1774 ◽  
Author(s):  
Laurence Packer
Keyword(s):  
Brood Size ◽  
Social Organisation ◽  
Brood Production ◽  
Size Dimorphism ◽  
Average Rank ◽  
Worker Size ◽  
The Social ◽  
Southern Alberta ◽  
Worker Brood ◽  
Reproductive Brood

An aggregation of Lasioglossum (Dialictus) laevissimum was studied in Calgary, Alberta, in the summer of 1988. This species was weakly eusocial, with an average of less than 2.5 workers per nest, 43% males in the worker brood, 63% of workers with well-developed ovaries, 35% of them mated, and a mean queen–worker size dimorphism of 7%. Based upon its average rank for these variables, in comparison with eight other species, L. laevissimum is the most weakly eusocial member of the subgenus Dialictus. Nonetheless, reproductive-brood production averaged around 25 per nest, and this species is clearly well adapted to short-summer environments. There was little evidence that any worker-brood females entered early diapause rather than functioning as workers. A few spring nests were initiated by more than one overwintered foundress. These pleometrotic nests often had worker-brood productivities that exceeded average reproductive-brood size. Brood mortality was low, infection of provision masses after rainfall being the major factor.

The social organisation of Halictus ligatus (Hymenoptera; Halictidae) in southern Ontario

1986 ◽  
Vol 64 (10) ◽  
pp. 2317-2324 ◽  
Author(s):  
Laurence Packer
Keyword(s):  
Ovarian Development ◽  
Social Organisation ◽  
Southern Ontario ◽  
Activity Phase ◽  
The Social ◽  
Halictus Ligatus ◽  
Small Colony ◽  
Worker Brood ◽  
The One ◽  
Reproductive Brood

The social organisation of Halictus ligatus was studied at Victoria, southern Ontario. At this locality, the one worker brood has a protracted period of emergence; this results in small colony populations throughout the summer activity phase. Workers average 12.7% smaller than their queens, 60% of them have some ovarian development, and 42% of them mate. More males are produced towards the very end of the first brood than earlier in the spring provisioning phase. These late first brood males probably survive to mate with reproductive brood females. In orphaned nests, one worker dominates the others to become a replacement queen. Most replacement queens are mated and orphaned colonies produce reproductives of both sexes. Data from this population are compared with those of other studies of this, and other, halictine species.

Endless Patience: Explaining Soviet and Post-Soviet Social Stability

1998 ◽  
Vol 31 (2) ◽  
pp. 187-198 ◽  
Author(s):  
Sarah Ashwin
Keyword(s):  
Social Contract ◽  
Social Organisation ◽  
Alternative View ◽  
Social Stability ◽  
Stalin Era ◽  
The Social ◽  
The Way

Various arguments have been put forward to explain the social stability of the post-Stalin era, in particular theories of a “social contract”, “incorporation” or “atomisation”. This article argues that all these theories have been cast into serious doubt by the response of workers to the reforms of the post-communist era and proposes an alternative view of the integration of workers which centres on the social organisation of the traditional Soviet enterprise. It goes on to show the way in which the form of workers' relation to the labour collective has structured their behaviour during the transition era.

scholarly journals Some aspects of the history and population ecology of the tsessebe damaliscus lunatus lunatus in the Kruger National Park

Koedoe ◽  
1977 ◽  
Vol 20 (1) ◽  
Author(s):  
S.C.J. Joubert ◽  
P.J.L. Bronkhorst
Keyword(s):  
Sex Ratio ◽  
Population Ecology ◽  
Age Structure ◽  
National Park ◽  
Kruger National Park ◽  
Population Trends ◽  
Social Organisation ◽  
Developmental History ◽  
The Social ◽  
History Of

The population trends and distribution of the tsessebe population of the Kruger National Park are evaluated in terms of the available data derived from records compiled in the developmental history of the Kruger National Park (KNP). The recent numerical status of the population is also given. A description of the habitats favoured by tsessebe in the KNP is presented as well as an analysis of the age structure and sex-ratio of the population. Aspects of the social organisation of tsessebe affecting the interpretation of the age structure and sex-ratio phenomena of the population, are also discussed.

Community and Social Organisation

1999 ◽  
pp. 157-184
Author(s):  
Diane Frost
Keyword(s):  
Social Control ◽  
Economic History ◽  
External Factors ◽  
Social Organisation ◽  
Community Organisation ◽  
The Social ◽  
History Of ◽  
Internal And External Factors

‘Community and Social Organisation’ is the last chapter in ‘The Kru Community in Freetown’, and provides an understanding of the social and economic history of the Kru in Freetown, and the respective internal and external factors that shaped it. The chapter focuses on community organisation amongst the Kru, rather than political organisation, which was shaped largely by forces outside the Kru’s social control.

The social organisation of treason

2019 ◽  
pp. 178-204
Author(s):  
Robert R. Faulkner ◽  
Eric R. Cheney
Keyword(s):  
Social Organisation ◽  
The Social
Sign in / Sign up

Export Citation Format

Share Document