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Abstract

An instance of obligatory social parasitism by Polyrhachis lama, on colonies of Diacamma sp., from Java is described. Reproductive females of both species coexist in nests, in which one gamergate queen of the Diacamma sp. host is always found. Dealate females (gynomorphs) of the parasite species...

Author(s)
Maschwitz, U.; Dorow, W. H. O.; Buschinger, A.; Kalytta, G.
Citation
Insectes Sociaux, 2000, 47, 1, pp 27-35
Abstract

In this book, the causes of some of the most spectacular transitions in evolutionary biology, the shifts between cooperation and competition, commensalism, or parasitism are explored. Insects and arachnids provide the most varied and numerous instances and forms of the evolution of cooperation in...

Publisher
Cambridge University Press, Cambridge, UK
Citation
The evolution of social behaviour in insects and arachnids., 1997, pp xii + 541 pp.
Abstract

Gas chromatography analyses and behavioural assays of individuals collected in pine plantations in Venezuela in 1994 or 1995 showed that Atta laevigata, a highly polymorphic ant species, has a mandibular gland secretion that varies with castes. All castes contained 4-methyl-3-heptanone as the main...

Author(s)
Hernández, J. V.; Cabrera, A.; Jaffe, K.
Citation
Journal of Chemical Ecology, 1999, 25, 11, pp 2433-2444
Abstract

Ant [Formicidae] foundress associations are an example of cooperation among non-kin. Across a dozen genera, queens able to found a colony alone often join unrelated queens, thereby enhancing worker production and colony survivorship. The benefits of joining other queens vary with group size and...

Author(s)
Bernasconi, G.; Strassmann, J. E.
Citation
Trends in Ecology & Evolution, 1999, 14, 12, pp 477-482
Abstract

A programme of research into phase change in the desert locust, Schistocerca gregaria, is described. The ability to change phase between solitarious and gregarious forms in response to population density is a key feature of locusts and is central to their occasional yet catastrophic impact on...

Author(s)
Simpson, S. J.; McCaffery, A. R.; Hägele, B. F.
Citation
Biological Reviews of the Cambridge Philosophical Society, 1999, 74, 4, pp 461-480
Abstract

The phenomenon of activity cycles in ants, taking into account the spatial structure of colonies was investigated. In this study species, Leptothorax acercorum, there are two spatially segregated groups in the nest. A model that considers the two groups as coupled oscillators which can produce...

Author(s)
Boi, S.; Couzin, I. D.; Buono, N. del; Franks, N. R.; Britton, N. F.
Citation
Proceedings of the Royal Society of London. Series B, Biological Sciences, 1999, 266, 1417, pp 371-378
Abstract

Postpharyngeal gland content was used to test the hypothesis that the hydrocarbon constituents, but not the other lipid classes, are responsible for modifying the aggressive behaviour of ants and so form a part of the nestmate recognition system. Two queenright colonies of Cataglyphis niger were...

Author(s)
Lahav, S.; Soroker, V.; Hefetz, A.; Vandermeer, R. K.
Citation
Naturwissenschaften, 1999, 86, 5, pp 246-249
Abstract

The repertoires of social lepidopteran larvae are drawn from 4 categories of behaviour centred on shelter building, thermoregulation, colony defence, and trail-based communication. This book chapter provides an overview of these collective patterns of behaviour and assesses the potential role of...

Author(s)
Fitzgerald, T. D.; Costa, J. T.
Publisher
Birkhäuser Verlag AG, Basel, Switzerland
Citation
Information processing in social insects., 1999, pp 379-400
Abstract

The evolution of co-operation in insect societies is discussed with particular reference to kin selection, which also predicts potential kin conflicts (over, for example, caste determination, male parentage, colony sex ratio). It is concluded that understanding how these conflicts are resolved is a ...

Author(s)
Keller, L.; Chapuisat, M.
Citation
BioScience, 1999, 49, 11, pp 899-909
Abstract

An array of eight microphones, all at a distance of 15 cm, was used to make simultaneous recordings of the sounds emitted by courting male Omocestus viridulus. In this species, the movement pattern for sound production differs in the two hindlegs, and in most cases the leg facing the female moves...

Author(s)
Michelsen, A.; Elsner, N.
Citation
Journal of Experimental Biology, 1999, 202, 12, pp 1571-1577

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