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Abstract

In order to understand the conditions favouring the evolution of the non-reproductive caste in social insects, it is necessary to know the life cycle of the non-social ancestors and to specify how the step crossing the boundary to eusociality or semisociality may have taken place. Three major...

Author(s)
Pamilo, P.
Citation
Journal of Theoretical Biology, 1991, 149, 1, pp 75-95
Abstract

In the facultatively social species X. pubescens net reproductive success in general is higher in solitary nests than in social nests. Under unfavourable conditions, however, during which competition for pollen or nesting substrate is severe, net reproductive success is higher for socially nesting...

Author(s)
Hogendoorn, K.
Citation
Proceedings of the Section Experimental and Applied Entomology of the Netherlands Entomological Society, 1991, 2, pp 123-128
Abstract

An ethological comparison between man and social insects (Formicidae and Apidae) was carried out and behaviour similarities are discussed, including clan formation and labour division; war, slavery and death; language; habitat; use of science; and capacity to survive in any medium.

Author(s)
Fernandéz, L.
Citation
Zapateri, 1991, 1, 1, pp 4-7
Abstract

From personal observations and a survey of the literature, it was concluded that, because honey bees are active almost all year, they are forced to forage on whatever plants are available and have never shown the adaptation to certain species which is found in solitary bees. When foraging, honey...

Author(s)
Westerkamp, C.
Citation
Plant Systematics and Evolution, 1991, 177, 1/2, pp 71-75
Abstract

When setting out a framework for the exploration of a subject, it is necessary to define terms to represent specific concepts, and to refine them as knowledge of the subject grows. It is a great advantage if stipulative definitions are also operational definitions, since this makes methods of...

Author(s)
Villet, M. H.
Citation
South African Journal of Zoology, 1991, 26, 4, pp 182-187
Abstract

This book is the first in the Russian language to deal with the main biological characteristics of all groups of social insects (ants, wasps, bees and termites). It is arranged in the following chapters: an introduction to the world of social insects; way of life (under each group); the main...

Author(s)
Kipyatkov, V. E.
Publisher
Izdatel'stvo 'Leningradskogo Universiteta', St. Petersburg, Russia,
Citation
Mir obshchestvennykh nasekomykh., 1991, pp 405 pp.
Abstract

The multiple origins of eusociality in the Hymenoptera have been ascribed to haplodiploidy because this genetic system makes a female more closely related to her full sisters than she would be to her offspring. This hypothesis was tested by first assuming that workers are capable of investing in...

Author(s)
Gadagkar, R.
Citation
Current Science, 1990, 59, 7, pp 374-376
Abstract

By means of ovariectomy it was possible to separate social and reproductive dominance in foundresses of P. gallicus, collected near Marseille, France. Ovariectomized foundresses could achieve and maintain the dominant position. Characteristics of social dominance (time on nest, low contribution of...

Author(s)
Röseler, P. F.; Röseler, I.
Citation
Insectes Sociaux, 1989, 36, 3, pp 219-234
Abstract

The social systems of the taxonomically related higher bees (carpenter bees, bumble bees, stingless bees and honeybees) are discussed and compared in relation to the kin selection hypothesis. It is concluded that sociality arose and developed as an evolution of competitive interactions within the...

Author(s)
Velthuis, H. H. W.
Citation
Actes des Colloques Insectes Sociaux, Vol. 5. Compte rendu Colloque annuel, Londres, 20-22 Sept. 1988. British Section IUSSI, Section Française UIEIS., 1989, pp 2-15
Abstract

In a response to Starr [Annals of the Entomological Society of America (1985) 78 (6) 836-840] the authors argue that the sting has minimal importance as a pre-adaptation facilitating the evolution of eusociality in the Hymenoptera. Rather, the origins of eusociality occurred in the context of small ...

Author(s)
Kukuk, P. F.; Eickwort, G. C.; Raveret-Richter, M.; Alexander, B.; Gibson, R.; Morse, R. A.; Ratnieks, F.
Citation
Annals of the Entomological Society of America, 1989, 82, 1, pp 1-5

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